1
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Li Y, Wu Y, Guo K, Wu W, Yao M. Effect of chlorination and ultraviolet on the adsorption of pefloxacin on polystyrene and polyvinyl chloride. J Environ Sci (China) 2025; 149:21-34. [PMID: 39181636 DOI: 10.1016/j.jes.2024.02.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 02/02/2024] [Accepted: 02/02/2024] [Indexed: 08/27/2024]
Abstract
During the water treatment process, chlorination and ultraviolet (UV) sterilization can modify microplastics (MPs) and alter their physicochemical properties, causing various changes between MPs and other pollutants. In this study, the impact of chlorination and UV modification on the physicochemical properties of polystyrene (PS) and polyvinyl chloride (PVC) were investigated, and the adsorption behavior of pefloxacin (PEF) before and after modification was examined. The effect of pH, ionic strength, dissolved organic matter, heavy metal ions and other water environmental conditions on adsorption behavior was revealed. The results showed that PS had a higher adsorption capacity of PEF than PVC, and the modification increased the presence of O-containing functional groups in the MPs, thereby enhancing the adsorption capacity of both materials. Chlorination had a more significant impact on the physicochemical properties of MPs compared to UV irradiation within the same time period, leading to better adsorption performance of chlorination. The optimal pH for adsorption was found to be 6, and NaCl, sodium alginate and Cu2+ would inhibit adsorption to varying degrees, among which the inhibition caused by pH was the strongest. Chlorination and UV modification would weaken the inhibitory effect of environmental factors on the adsorption of PEF by MPs. The main mechanisms of adsorption involved electrostatic interaction and hydrogen bonding. The study clarified the effects of modification on the physicochemical properties of MPs, providing reference for subsequent biotoxicity analysis and environmental protection studies.
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Affiliation(s)
- Yanan Li
- School of Environmental Science and Engineering, Taiyuan University of Technology, Shanxi 030600, China.
| | - Yaning Wu
- School of Environmental Science and Engineering, Taiyuan University of Technology, Shanxi 030600, China
| | - Kai Guo
- School of Environmental Science and Engineering, Taiyuan University of Technology, Shanxi 030600, China
| | - Weiqin Wu
- School of Environmental Science and Engineering, Taiyuan University of Technology, Shanxi 030600, China
| | - Meijing Yao
- School of Environmental Science and Engineering, Taiyuan University of Technology, Shanxi 030600, China
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2
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Du H, Chen P, Lin X, Zheng J, Liu H, Wang X. Adsorption of metals on aged microplastics in intensive mariculture areas: Aggravating the potential ecological risks to marine organisms. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 946:173964. [PMID: 38876355 DOI: 10.1016/j.scitotenv.2024.173964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 06/07/2024] [Accepted: 06/11/2024] [Indexed: 06/16/2024]
Abstract
Field determination of the metal adsorption capacity of microplastics (MPs) by using a passive sampler had been done in typical subtropical mariculture area in China. The adsorption of eight metals (Fe, Mn, Cu, Zn, As, Pb, Cr and Cd) by five types of MPs (low-density polyethylene, polypropylene, polystyrene, poly(ethylene terephthalate) and poly(vinyl chloride) (PVC) was compared, including metal types, mariculture types (cage and longline culture), metal residue content in ambient environment, polymer types and particle sizes of MPs. The results showed that Cu, Zn, As, Cd, Pb and Cr in the mariculture environment were contaminated compared with the quality criteria. The concentrations of these six metals adsorbed on five MPs increased linearly with those in seawater. More enriched Cu and As in MPs in marine cage culture than in longline culture, due to the obvious endogenous pollution emissions for the artificial diets, fish medicine and disinfectants. Aged PVC with more cracks and pores showed higher metal adsorption capacity than any other polymers. MPs with a smaller size range of 50-74 μm tended to accumulate higher amounts of metals than those with a larger size range of 74-178 μm, consisting with the surface characteristics of MPs. The significant positive relationship between the concentrations of nutrients in seawater and the adsorption amounts of Cu, Zn and As on MPs implies that the eutrophication would promote their pollution. Based on the ecological risk assessment, the occurrence of MPs could aggravate the potential risk of metals to marine organisms in intensive mariculture areas. This is the first time to reveal the impacts of the adsorption of metals on aged MPs on the potential ecological risks of metals to organisms under the realistic environmental condition.
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Affiliation(s)
- Huihong Du
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361102, China; College of the Environment and Ecology, Xiamen University, Xiamen 361102, China
| | - Pengyu Chen
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361102, China; Jiangsu Province Engineering Research Center for Marine Bio-resources Sustainable Utilization, College of Oceanography, Hohai University, Nanjing 210024, China
| | - Xiaoping Lin
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361102, China; College of the Environment and Ecology, Xiamen University, Xiamen 361102, China
| | - Jingyi Zheng
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361102, China; College of the Environment and Ecology, Xiamen University, Xiamen 361102, China
| | - Huatai Liu
- College of the Environment and Ecology, Xiamen University, Xiamen 361102, China
| | - Xinhong Wang
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361102, China; College of the Environment and Ecology, Xiamen University, Xiamen 361102, China.
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3
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Battulga B, Nakanishi T, Atarashi-Andoh M, Otosaka S, Koarashi J. Biofilm-mediated interactions between plastics and radiocesium in coastal environments. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024:10.1007/s11356-024-35164-y. [PMID: 39367219 DOI: 10.1007/s11356-024-35164-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2024] [Accepted: 09/23/2024] [Indexed: 10/06/2024]
Abstract
A ubiquitous distribution of plastic debris has been reported in aquatic and terrestrial environments; however, the interactions between plastics and radionuclides and the radioactivity of environmental plastics remain largely unknown. Here, we characterize biofilms developing on the surface of plastic debris to explore the role of plastic-associated biofilms as an interaction medium between plastics and radiocesium (137Cs) in the environment. Biofilm samples were extracted from plastics (1-50 mm in size) collected from two contrasting coastal areas in Japan. The radioactivity of plastics was estimated based on the 137Cs activity concentration of the biofilms and compared seasonally with surrounding environmental samples (i.e., sediment and sand). 137Cs traces were detected in biofilms with activity concentrations of 21-1300 Bq·kg-1 biofilm (dry weight), corresponding to 0.04-4.5 Bq·kg-1 plastic (dry weight). Our results reveal the interaction between 137Cs and plastics and provide evidence that organic and mineral components in biofilms are essential in 137Cs retention in environmental plastics. Given the ubiquitous distribution of plastic debris in the environment, more attention should be directed to bioaccumulation and the radioecological impacts of plastic-associated radionuclides on ecosystems.
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Affiliation(s)
- Batdulam Battulga
- Nuclear Science and Engineering Center, Japan Atomic Energy Agency, Tokai, Naka City, Ibaraki Prefecture, 319-1195, Japan.
| | - Takahiro Nakanishi
- Nuclear Science and Engineering Center, Japan Atomic Energy Agency, Tokai, Naka City, Ibaraki Prefecture, 319-1195, Japan
| | - Mariko Atarashi-Andoh
- Nuclear Science and Engineering Center, Japan Atomic Energy Agency, Tokai, Naka City, Ibaraki Prefecture, 319-1195, Japan
| | - Shigeyoshi Otosaka
- Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwa City, Chiba Prefecture, 277-0882, Japan
| | - Jun Koarashi
- Nuclear Science and Engineering Center, Japan Atomic Energy Agency, Tokai, Naka City, Ibaraki Prefecture, 319-1195, Japan
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Bhaumik S, Chakraborty P. Interactions between microplastics (MPs) and trace/toxic metals in marine environments: implications and insights-a comprehensive review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024:10.1007/s11356-024-34960-w. [PMID: 39365535 DOI: 10.1007/s11356-024-34960-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Accepted: 09/07/2024] [Indexed: 10/05/2024]
Abstract
Microplastics (MP) pollution is a pressing concern in today's marine environments. MPs can significantly affect marine ecosystems by altering nutrient and pollutant dynamics. This review analyses the existing literature to investigate interactions between MPs and micronutrients/pollutants, specifically trace and toxic metals in marine environments. It explores the adsorption of metals onto MP surfaces, emphasizing kinetics, isotherms, and underlying mechanisms of the process. The review highlights the potential consequences of MPs on the biogeochemical cycles of trace and toxic metals, emphasizing disruptions that could result in metal toxicity, metal limitations, reduced bioavailability, and adverse effects on primary productivity in marine ecosystems. It further underscores the need for future research to unravel the wide-ranging implications of MPs on trace and toxic metal cycling in marine ecosystems and their broader environmental impacts.
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Affiliation(s)
- Swastika Bhaumik
- Marine Trace Metal Biogeochemistry Laboratory, Centre for Ocean, River, Atmosphere and Land Sciences (CORAL), Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, 721302, India
| | - Parthasarathi Chakraborty
- Marine Trace Metal Biogeochemistry Laboratory, Centre for Ocean, River, Atmosphere and Land Sciences (CORAL), Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, 721302, India.
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5
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Mittal N, Tiwari N, Singh D, Tripathi P, Sharma S. Toxicological impacts of microplastics on human health: a bibliometric analysis. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:57417-57429. [PMID: 37936032 DOI: 10.1007/s11356-023-30801-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Accepted: 10/27/2023] [Indexed: 11/09/2023]
Abstract
Plastic has been known as an artificial polymer whereas environmental microplastics become a global concern. Microplastics are reported to cause immunotoxicity in humans through gut deposition and entering the bloodstream. This study is a comprehensive indication of the recent research on microplastic toxicity in the gastrointestinal system. We performed bibliographic analysis using VOS viewer software and analyzed the data received on microplastics and their impact on gut health which has grown exponentially since 2016. Recent findings also support microplastic toxicity in combination with heavy metals. The smaller particle size and other factors enhanced the adsorption ability of environmental contamination such as heavy metals on microplastic which increased their bioaccumulation. Such toxic complexes of heavy metals and microplastics are a concern to natural ecosystems and environmental biologists. Few reports also demonstrated the biofilm formation on microplastic surfaces which might cause greater environmental as well as human health risks. Notably, terms of determining the microplastics in human tissues through several analytical techniques are still limited to some extent. Future research should be focused on the quantification of microplastics in human tissues, the combined effect of microplastics with other contaminants, and their effects on pre-existing diseases. This study boosts understanding of the potential impacts of microplastic and nanoplastic toxicity in the human gastrointestinal system.
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Affiliation(s)
- Nishu Mittal
- Faculty of Biosciences, Institute of Biosciences and Technology, Shri RamSwaroop Memorial University, Deva Road, Barabanki, Lucknow, Uttar Pradesh, 225003, India
| | - Neeraj Tiwari
- Faculty of Biosciences, Institute of Biosciences and Technology, Shri RamSwaroop Memorial University, Deva Road, Barabanki, Lucknow, Uttar Pradesh, 225003, India
| | - Dhananjay Singh
- Department of Biosciences, Integral University, Kursi Road, Lucknow, Uttar Pradesh, 226026, India
| | - Prabhanshu Tripathi
- Food Drug and Chemical Toxicology Division, CSIR-Indian Institute of Toxicology Research, Lucknow, Uttar Pradesh, 226001, India
| | - Sapna Sharma
- Faculty of Biosciences, Institute of Biosciences and Technology, Shri RamSwaroop Memorial University, Deva Road, Barabanki, Lucknow, Uttar Pradesh, 225003, India.
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6
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Chen Z, Carter LJ, Banwart SA, Pramanik DD, Kay P. Multifaceted effects of microplastics on soil-plant systems: Exploring the role of particle type and plant species. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 954:176641. [PMID: 39357762 DOI: 10.1016/j.scitotenv.2024.176641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2024] [Revised: 09/25/2024] [Accepted: 09/29/2024] [Indexed: 10/04/2024]
Abstract
Microplastics have emerged as a global environmental concern, yet their impact on terrestrial environments, particularly agricultural soils, remains underexplored. Agricultural soils, due to intensive farming, may serve as significant sinks for microplastics. This study investigated the effects of different types of microplastics-polyester microfibers, polyethylene terephthalate microfragments, and polystyrene microspheres-on soil properties and radish growth, while a complementary experiment examined the impact of polyester microfibers on the growth of lettuce and Chinese cabbage. Through both horizontal and vertical comparisons, this research comprehensively evaluated the interactions between microplastic particles and plant species in soil-plant systems. The results showed that polyester microfibers significantly affected soil bulk density, with effects varying based on planting conditions (p < 0.01). Polyethylene terephthalate microfragments and polystyrene microspheres reduced the proportion of small soil macroaggregates under radish cultivation (p < 0.01). Additionally, polystyrene microspheres significantly altered the total organic carbon stock in radish-growing soil, potentially affecting the microclimate (p < 0.01). Interestingly, polyester microfibers promoted lettuce seed germination and significantly enhanced the root biomass of Chinese cabbage (p < 0.05). Overall, the environmental effects of microplastic exposure varied depending on the type of particle and plant species, suggesting that microplastics are not always harmful to soil-plant systems and may even offer benefits in certain scenarios. Given the crucial role of soil-plant systems in terrestrial ecosystems, and their direct connection to food safety, human health, and global change, further research should explore both the positive and negative impacts of microplastics on agricultural practices.
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Affiliation(s)
- Zhangling Chen
- School of Earth and Environment, University of Leeds, LS2 9JT, United Kingdom; School of Geography, University of Leeds, LS2 9JT, United Kingdom.
| | - Laura J Carter
- School of Geography, University of Leeds, LS2 9JT, United Kingdom
| | - Steven A Banwart
- School of Earth and Environment, University of Leeds, LS2 9JT, United Kingdom
| | - Devlina Das Pramanik
- School of Food Science and Nutrition, University of Leeds, LS2 9JT, United Kingdom; Centre for Biotechnology and Biochemical Engineering, Amity Institute of Biotechnology, Amity University, Noida, Uttar Pradesh 201301, India
| | - Paul Kay
- School of Geography, University of Leeds, LS2 9JT, United Kingdom
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7
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Chen Q, Ge X, Xu F, Li J, Xu Z, Liu L, Tang Y. Distribution and co-occurrence of microplastics and co-existing pollutants in bottom water and sediment of the East China Sea. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 954:176405. [PMID: 39304163 DOI: 10.1016/j.scitotenv.2024.176405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Revised: 08/31/2024] [Accepted: 09/18/2024] [Indexed: 09/22/2024]
Abstract
Microplastics (MPs) contamination in marine environment has been an emerging issue worldwide, notably due to the potential ecological risks of MPs with co-existing environmental contaminants and released toxic plastic additives. To verify the co-occurrence characteristics of MPs and co-existing pollutants in the benthic boundary layer (BBL), the distribution characteristics of MPs, and selected heavy metals (HMs) and halogenated flame retardants (Polybrominated diphenyl ethers, PBDEs, and Dechlorane Plus) in the bottom water and sediment were comprehensively investigated in the East China Sea (ECS). The sampling sites were selected along the coast of ECS, where might be significantly affected by terrigenous inputs and anthropogenic sources. MPs were abundant in the bottom water (62.8-480.2 items/L) and sediment (80.1-1346.7 items/kg d.w.) with polyester, polyethylene, and polypropylene being as the most abundant types and characterized as fiber/line, particle size 200-500 μm, and transparent/white. The abundance and characteristics of MPs demonstrated strong correlations within the bottom water and sediment, which might be due to the frequent exchange of materials. In addition, the abundance of MPs was significantly positively correlated with HMs (Cd, Cr, Pb) in the bottom water and PBDEs in sediment, respectively. According to the scanning electron microscopy/energy dispersive X-ray spectrometry analysis, MPs might act as carriers to transport and co-sediment the co-existing pollutants in water, and physically adsorb or chemically bind with pollutants in sediment. These results could help to elucidate the sources, migration, and fate, and verify the occurrence and potential risks of MPs and their co-existing pollutants in BBL, thus realize the management and control of MPs contamination in marine.
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Affiliation(s)
- Qiqi Chen
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, School of Resource and Environmental Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Xinyu Ge
- Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Feng Xu
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, School of Resource and Environmental Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Jiawei Li
- Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Zhe Xu
- Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Lili Liu
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, School of Resource and Environmental Engineering, East China University of Science and Technology, Shanghai 200237, China.
| | - Yuanyuan Tang
- Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China.
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8
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Zuo Y, Ge Y, Wang R, Xu W, Liu C, Guo Z, Wang S, Jia H, Li Y. Occurrence and migration patterns of microplastics in different tidal zones of tourist beaches: A case study in the Bohai Bay, North China. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 370:122479. [PMID: 39288492 DOI: 10.1016/j.jenvman.2024.122479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2024] [Revised: 08/29/2024] [Accepted: 09/08/2024] [Indexed: 09/19/2024]
Abstract
Coastal areas are acknowledged to be significant reservoirs of microplastics, while limited research on their presence and migration in the intertidal zones. This study investigated in a tourist beach in northern China, to reveal the occurrence of microplastics at different intertidal heights, elucidates their migration patterns, and discusses the impact of tourist activities on microplastics. Results showed that the mean microplastic abundance was 2114.8 ± 933.2 items/kg in sediments and 30,670.8 ± 15,094.9 items/m3 in seawater. Fibers were the most common shape; transparent, blue, green and black prevailed in color; and cellulose and PET were the most common components. Microplastic abundances decreased from high tide zone to low tide zone, and the abundances of microplastics in seawater were positively correlated with those in the high tide zone and negatively correlated with those in the low tide zone. Compared to wave disturbance, human activities have a relatively limited impact on microplastic abundance. However, intensive tourist activities contribute to a higher diversity of microplastic types on tourist beaches. This study enhances the understanding of the occurrence and migration patterns of microplastics in tourist beaches, and provides a valuable dataset and theoretical basis for subsequent research on microplastic pollution in coastal areas.
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Affiliation(s)
- Yutao Zuo
- College of Geographical Sciences, Hebei Normal University, Shijiazhuang, 050024, PR China; Hebei Key Laboratory of Environmental Change and Ecological Construction, Shijiazhuang, 050024, PR China; Hebei Technology Innovation Center for Remote Sensing Identification of Environmental Change, Shijiazhuang, 050024, PR China
| | - Yawen Ge
- College of Geographical Sciences, Hebei Normal University, Shijiazhuang, 050024, PR China; Hebei Key Laboratory of Environmental Change and Ecological Construction, Shijiazhuang, 050024, PR China; Hebei Technology Innovation Center for Remote Sensing Identification of Environmental Change, Shijiazhuang, 050024, PR China.
| | - Ruolin Wang
- College of Geographical Sciences, Hebei Normal University, Shijiazhuang, 050024, PR China; Hebei Key Laboratory of Environmental Change and Ecological Construction, Shijiazhuang, 050024, PR China; Hebei Technology Innovation Center for Remote Sensing Identification of Environmental Change, Shijiazhuang, 050024, PR China
| | - Wanqiang Xu
- Hebei Academy of Agriculture and Forestry Sciences, Shijiazhuang, 050031, PR China
| | - Changhong Liu
- College of Geographical Sciences, Hebei Normal University, Shijiazhuang, 050024, PR China; Hebei Key Laboratory of Environmental Change and Ecological Construction, Shijiazhuang, 050024, PR China; Hebei Technology Innovation Center for Remote Sensing Identification of Environmental Change, Shijiazhuang, 050024, PR China
| | - Zixiao Guo
- College of Geographical Sciences, Hebei Normal University, Shijiazhuang, 050024, PR China; Hebei Key Laboratory of Environmental Change and Ecological Construction, Shijiazhuang, 050024, PR China; Hebei Technology Innovation Center for Remote Sensing Identification of Environmental Change, Shijiazhuang, 050024, PR China
| | - Shuo Wang
- College of Geographical Sciences, Hebei Normal University, Shijiazhuang, 050024, PR China; Hebei Key Laboratory of Environmental Change and Ecological Construction, Shijiazhuang, 050024, PR China; Hebei Technology Innovation Center for Remote Sensing Identification of Environmental Change, Shijiazhuang, 050024, PR China
| | - Huiyuan Jia
- College of Geographical Sciences, Hebei Normal University, Shijiazhuang, 050024, PR China; Hebei Key Laboratory of Environmental Change and Ecological Construction, Shijiazhuang, 050024, PR China; Hebei Technology Innovation Center for Remote Sensing Identification of Environmental Change, Shijiazhuang, 050024, PR China
| | - Yuecong Li
- College of Geographical Sciences, Hebei Normal University, Shijiazhuang, 050024, PR China; Hebei Key Laboratory of Environmental Change and Ecological Construction, Shijiazhuang, 050024, PR China; Hebei Technology Innovation Center for Remote Sensing Identification of Environmental Change, Shijiazhuang, 050024, PR China
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9
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An Q, Wen C, Yan C. Meta-analysis reveals the combined effects of microplastics and heavy metal on plants. JOURNAL OF HAZARDOUS MATERIALS 2024; 476:135028. [PMID: 38925057 DOI: 10.1016/j.jhazmat.2024.135028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Revised: 06/05/2024] [Accepted: 06/23/2024] [Indexed: 06/28/2024]
Abstract
The combined pollution of microplastics and heavy metals is becoming increasingly serious, and its effects on toxicology and heavy metal accumulation of plants are closely related to crop yield and population health. Here, we collected 57 studies to investigate the effect of microplastics on heavy metal accumulation in plants and their combined toxicity. An assessment was conducted to discover the primary pollutant responsible for the toxicity of combined pollution on plants. The study examined the influence of microplastic characteristics, heavy metal characteristics, and experimental methods on this pollutant. The results showed that combined toxicity of plants was more similar to heavy metals, whereas microplastics interacted with heavy metals mainly by inducing oxidative stress damage. Culture environment, heavy metal type, experimental duration, microplastic concentration and microplastic size were the main factors affecting heavy metal accumulation in plants. There was a negative correlation between experimental duration, microplastic concentration and microplastic size with heavy metal accumulation in plants. The interactions among influencing factors were found, and microplastic biodegradation was the core factor of the strong interaction. These results provided comprehensive insights and guiding strategies for environmental and public health risks caused by the combined pollution of microplastics and heavy metals.
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Affiliation(s)
- Qiuying An
- Key Laboratory of Urban Environment and Health, Fujian Key Laboratory of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ce Wen
- Key Laboratory of Urban Environment and Health, Fujian Key Laboratory of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Changzhou Yan
- Key Laboratory of Urban Environment and Health, Fujian Key Laboratory of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China.
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10
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Dogra K, Kumar M, Deoli Bahukhandi K, Zang J. Traversing the prevalence of microplastics in soil-agro ecosystems: Origin, occurrence, and pollutants synergies. JOURNAL OF CONTAMINANT HYDROLOGY 2024; 266:104398. [PMID: 39032427 DOI: 10.1016/j.jconhyd.2024.104398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Revised: 05/17/2024] [Accepted: 07/11/2024] [Indexed: 07/23/2024]
Abstract
The ubiquity of plastics in modern life has made them a significant environmental concern and a marker of the Anthropocene era. The degradation of plastics results in the formation of microplastics (MPs), which measure 5 mm or less. The coexistence of MPs with other pollutants found in sludge, water treatment plant effluents, surface water, and groundwater, shapes the environmental landscape together. Despite extensive investigation, the long-term implications of MPs in soils remain uncertain, underscoring the importance of delving into their transportation and interactions with soil biota and other contaminants. The present article provides a comprehensive overview of MPs contamination in soil, encompassing its sources, prevalence, features, and interactions with soil flora and fauna, heavy metals, and organic compounds. The sources of MPs in soil agroecosystems are mulching, composting, littering, sewage sludge, irrigation water, and fertilizer application. The concentration of MPs reported in plastic mulch, littering, and sewage sludge is 503 ± 2760 items per kg-1, 4483 ± 2315 MPs/kg, and 11,100 ± 570 per/kg. The transport of MPs in soil agroecosystems is due to their horizontal and vertical migration including biotic and abiotic mobility. The article also highlighted the analytical process, which includes sampling planning, collection, purification, extraction, and identification techniques of MPs in soil agroecosystems. The mechanism in the interaction of MPs and organic pollutants includes surface adsorption or adhesion cation bridging, hydrogen bonding, charge transfer, ligand exchange, van der Waals interactions, and ion exchange.
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Affiliation(s)
- Kanika Dogra
- Sustainability Cluster, School of Advanced Engineering, UPES, Dehradun 248007, Uttarakhand, India
| | - Manish Kumar
- Sustainability Cluster, School of Advanced Engineering, UPES, Dehradun 248007, Uttarakhand, India; Escuela de Ingeniería y Ciencias, Tecnológico de Monterrey, Campus Monterey, Monterrey 64849, Nuevo León, Mexico.
| | - Kanchan Deoli Bahukhandi
- Sustainability Cluster, School of Advanced Engineering, UPES, Dehradun 248007, Uttarakhand, India
| | - Jian Zang
- Joint International Research Laboratory of Green Buildings and Built Environments, School of Civil Engineering, Chongqing University, Chongqing, China
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11
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Wang C, Liu X, Ma Q, Xing S, Yuan L, Ma Y. Distribution and effects of microplastics as carriers of heavy metals in river surface sediments. JOURNAL OF CONTAMINANT HYDROLOGY 2024; 266:104396. [PMID: 39047425 DOI: 10.1016/j.jconhyd.2024.104396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2023] [Revised: 06/16/2024] [Accepted: 07/11/2024] [Indexed: 07/27/2024]
Abstract
There are few studies on microplastics (MPs) in urban river sediments compared to oceans, soils, and even rivers. In this study, the seasonal abundance of MPs, as well as their influencing factors on heavy metal adsorption in river sediments of the Ancient Canal of Zhenjiang City, China, were investigated for the first time. Through on-site sampling, microscopic observation, Raman spectroscopy, scanning electron microscopy, and high-temperature digestion, the abundance, shape, color, particle size, type, and surface characteristics of MPs in Ancient Canal sediments in different seasons, as well as the influencing factors of MPs as heavy metal carriers in different seasons, were analyzed. The results showed that the average abundance of MPs is 2049.09 ± 883.78 and 2216.36 ± 826.21 items kg-1 dry sediments in summer and winter, respectively, and different sites change significantly. In addition, particle sizes, types, colors, and shapes of MPs exhibited seasonal variations. Four MPs shapes were mainly observed: fibers, fragments, particles, and films. Among them, MPs in summer sediments are mainly fiber, and MPs in winter sediments are mainly particles. In the sediment in summer and winter, transparent MPs and small-size (<0.5 mm) MPs are the main ones, where the abundance of MPs decreased with increasing MPs size. The main MPs species are polyvinyl chloride (PVC), polystyrene (PS), polypropylene (PP), polyethylene terephthalate (PET), polycarbonate (PC), and polyethylene (PE), with PP being the predominant MPs in the sediments in different seasons. Scanning electron microscopy-energy dispersive spectrometer (SEM-EDS) revealed that the surfaces of the MPs were characterized by rough, porous, cracked, and torn, with the attachment of various heavy metal elements, and all of the heavy metal elements accumulated to different degrees on the MPs. There was a significant positive correlation (p < 0.05) between the Mn content in the MPs and the Mn content in the sediments in winter, suggesting that the Mn in the MPs in winter may be derived from the sediments. In addition, the type, shape, size, and color of MPs affect the adsorption capacity of heavy metals. Most of the adsorption of MPs on Pb showed a significant negative correlation, and the adsorption of MPs on Cr, Zn, Cu, Cd, and Mn showed a significant positive correlation. MPs can be used as carriers of heavy metals, which will further enhance the hazards of living organisms and pose a potential threat to the safety of the urban river environment.
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Affiliation(s)
- Changyuan Wang
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China; Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu Province 210014, China; National Agricultural Experiment Station for Agricultural Environment, Luhe, Nanjing 210014, China
| | - Xin Liu
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Qianqian Ma
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Shuyu Xing
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Lubin Yuan
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Yan Ma
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China; Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu Province 210014, China; National Agricultural Experiment Station for Agricultural Environment, Luhe, Nanjing 210014, China.
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12
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Li X, Shi F, Zhou M, Wu F, Su H, Liu X, Wei Y, Wang F. Migration and accumulation of microplastics in soil-plant systems mediated by symbiotic microorganisms and their ecological effects. ENVIRONMENT INTERNATIONAL 2024; 191:108965. [PMID: 39167856 DOI: 10.1016/j.envint.2024.108965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2024] [Revised: 08/16/2024] [Accepted: 08/16/2024] [Indexed: 08/23/2024]
Abstract
The coexistence of microorganisms in complex soil environments greatly affects the environmental behavior and ecological effects of microplastics (MPs). However, relevant studies are sparse, and internal mechanisms remain unclear. Herein, arbuscular mycorrhizal fungi (AMF), a common symbiotic microorganism in the soil-plant system, was proved to significantly affect MPs absorption and migration with a "size effect". Specifically, the existence of AMF accelerated small-sized MPs (0.5 μm) uptake but slowed large-sized MPs (2 μm) uptake in lettuce. The content of 0.5 μm MPs absorbed by plants with AMF was 1.26 times that of the non-AMF group, while the content of 2 μm MPs was only 77.62 % that of non-AMF group. Additionally, the different effects of microorganisms on the intake content of MPs with different particle sizes in plants also led to different toxic effects of MPs on lettuce, that is, AMF exacerbated small-size MPs toxicity in lettuce (e.g., reduced plant biomass, photosynthesis, etc), and it weakened large-sized MPs toxicity (e.g., increased plant height, antioxidant enzyme activity, etc). The above phenomenon mainly because of the change in AMF on the plant root structure, which can be visually observed through the intraradical and extraradical hyphae. The symbiotic structure (hyphae) formed by AMF and host plants root could enhance the absorption pathway for small-sized MPs in lettuce, although not for large-sized MPs. Additionally, the effects of AMF varied with the soil environment of differently sized MPs, which promoted the migration of small-particle MPs to plants but aggravated large-particle MPs fixation at the soil interface. These findings could deepen the understanding of MPs pollution in terrestrial systems and provide theoretical basis and technical support to accurately assess soil MPs pollution.
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Affiliation(s)
- Xinru Li
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Feng Shi
- National Center for Science & Technology Evaluation, Beijing 100081, China
| | - Min Zhou
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Fengchang Wu
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Hailei Su
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Xuesong Liu
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Yuan Wei
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
| | - Fanfan Wang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
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13
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Vasudeva M, Adarsh UK, Warrier AK, George SD, Unnikrishnan VK. Performance evaluation of a hyphenated laser spectroscopy system with conventional methods for microplastic analysis. Sci Rep 2024; 14:19327. [PMID: 39164370 PMCID: PMC11336231 DOI: 10.1038/s41598-024-70501-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2024] [Accepted: 08/17/2024] [Indexed: 08/22/2024] Open
Abstract
Microplastics are one of the concerning environmental pollutants because of their ubiquity. Their capability to adsorb other environmental pollutants increases the risk even further. Existing identification approaches for microplastic characterization for polymer class and their surface-adsorbed heavy metal detection require the utilization of multiple resources and expertise. The article discusses the applicability of a custom-made hyphenated Laser Induced Breakdown Spectroscopy (LIBS)-Raman spectroscopic system in characterizing microplastics by comparing the analytical performance with conventional methods such as Attenuated Total Reflectance- Fourier Transform Infrared (ATR-FTIR) spectroscopy, confocal Raman spectroscopy, and Scanning Electron Microscopy-Energy Dispersive X-ray Spectroscopy (SEM-EDS). Raman analysis identified polyethylene (PE), polypropylene (PP), and polyethylene terephthalate (PET) plastics, which is confirmed by confocal Raman and FTIR study of the same. LIBS study of microplastics detected heavy metals such as Al, Ni, Co, and Zn, along with Ca and Mg trace elements. The cross-examination with EDS validates these trace elements' presence on the microplastics' surface. The results of the reported LIBS-Raman analysis and its validity evaluated using conventional gold-standard methods show the applicability of the proposed methodology in characterizing microplastics from environmental resources with less or no sample preparation in short time.
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Affiliation(s)
- M Vasudeva
- Department of Atomic and Molecular Physics, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - U K Adarsh
- Department of Atomic and Molecular Physics, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Anish Kumar Warrier
- Department of Civil Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, 576104, India
- Centre for Climate Studies, Manipal Academy of Higher Education, Manipal, 576104, India
| | - Sajan D George
- Department of Atomic and Molecular Physics, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
- Centre for Applied Nanosciences, Department of Atomic and Molecular Physics, Manipal Academy of Higher Education, Manipal, 576104, India
| | - V K Unnikrishnan
- Department of Atomic and Molecular Physics, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India.
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Maw MM, Boontanon N, Aung HKZZ, Jindal R, Fujii S, Visvanathan C, Boontanon SK. Microplastics in wastewater and sludge from centralized and decentralized wastewater treatment plants: Effects of treatment systems and microplastic characteristics. CHEMOSPHERE 2024; 361:142536. [PMID: 38844106 DOI: 10.1016/j.chemosphere.2024.142536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 05/27/2024] [Accepted: 06/03/2024] [Indexed: 06/11/2024]
Abstract
Domestic wastewater treatment plants (WWTPs) play a vital role in limiting the release of microplastics (MP) into the environment. This study examined MP removal efficiency from five centralized and four decentralized domestic WWTPs in Bangkok, Thailand. MP concentrations in wastewater and sludge were comparable between centralized and decentralized WWTPs, despite these decentralized WWTPs serving smaller populations and having limited treatment capacity. The elimination of MPs ranged from 50 to 96.8% in centralized WWTPs and 14.2-53.6% in decentralized WWTPs. It is noted that the retained MPs concentrations in sludge ranged from 20,000 to 228,100 MP/kg dry weight. The prevalence of synthetic fibers and fragments could be attributed to their pathways from laundry or car tires, and the accidental release of a variety of plastic wastes ended up in investigated domestic WWTPs. Removal of MPs between the centralized and decentralized WWTPs was influenced by several impact factors including initial MP concentrations, longer retention times, MP fragmentation, and variations of MP concentrations in sludge leading to different activated sludge process configurations. Sewage sludge has become a primary location for the accumulation of incoming microplastics in WWTPs. The MPs entering and leaving each unit process were varied due to the unique characteristics of MPs, and their different treatment efficiencies. While the extended hydraulic retention period in decentralized WWTPs decreased the MP removal efficacy, the centralized WWTP with the two-stage activated sludge process achieved the highest MP removal efficiency.
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Affiliation(s)
- Me Me Maw
- Graduate Program in Environmental and Water Resources Engineering, Department of Civil and Environmental Engineering, Faculty of Engineering, Mahidol University, Nakhon Pathom, 73710, Thailand
| | - Narin Boontanon
- Research Center and Technology, Development for Environmental Innovation, Faculty of Environment and Resource Studies, Mahidol University, Nakhon Pathom, 73710, Thailand
| | - Humm Kham Zan Zan Aung
- Graduate Program in Environmental and Water Resources Engineering, Department of Civil and Environmental Engineering, Faculty of Engineering, Mahidol University, Nakhon Pathom, 73710, Thailand
| | - Ranjna Jindal
- Graduate Program in Environmental and Water Resources Engineering, Department of Civil and Environmental Engineering, Faculty of Engineering, Mahidol University, Nakhon Pathom, 73710, Thailand
| | - Shigeo Fujii
- Graduate School of Global Environmental Studies, Kyoto University, Kyoto, 606-8501, Japan
| | - Chettiyappan Visvanathan
- Graduate Program in Environmental and Water Resources Engineering, Department of Civil and Environmental Engineering, Faculty of Engineering, Mahidol University, Nakhon Pathom, 73710, Thailand
| | - Suwanna Kitpati Boontanon
- Graduate Program in Environmental and Water Resources Engineering, Department of Civil and Environmental Engineering, Faculty of Engineering, Mahidol University, Nakhon Pathom, 73710, Thailand; Graduate School of Global Environmental Studies, Kyoto University, Kyoto, 606-8501, Japan.
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15
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Chebbi L, Boughattas I, Helaoui S, Mkhinini M, Jabnouni H, Ben Fadhl E, Alphonse V, Livet A, Giusti-Miller S, Banni M, Bousserrhine N. Environmental microplastic interact with heavy metal in polluted soil from mine site in the North of Tunisia: Effects on heavy metal accumulation, growth, photosynthetic activities, and biochemical responses of alfalfa plants (Medicago saliva L.). CHEMOSPHERE 2024; 362:142521. [PMID: 38857630 DOI: 10.1016/j.chemosphere.2024.142521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2024] [Revised: 05/22/2024] [Accepted: 06/01/2024] [Indexed: 06/12/2024]
Abstract
As emerging persistent pollutants, microplastic (MPs) pollution attracted increasing attention worldwide since it is posing several environmental concerns. MPs interact with heavy metals in soil and may provoke damages on soil properties and ultimately impaired plants and human health. The present study aims to evaluate alfalfa plants (Medicago sativa) response after exposure to heavy metal polluted soils from mine site in the North of Tunisia in presence of environmental microplastic. For that, soils were sampled from two sites of Jebel Ressass mine in addition to a control soil. Plants were exposed to the three soils in presence of two increasing rates of microplastics D1 (1 mg/kg of soil) and D2 (100 mg/kg of soil) for 60 days. After harvest, agronomic parameters, chlorophyll content as well as heavy metal accumulation in plants were analyzed. Furthermore, oxidative status was evaluated in terms of malondialdehyde accumulation (MDA), catalase (CAT) activities and glutathion-S-transferase (GST). Overall, our finding highlights that MPs disrupted agronomic parameters and the photosynthetic activities of alfalfa plants. Additionally, our results revealed that the presence of MPs in polluted soils cause an increase on heavy metal accumulation in alfalfa shoots. Biochemical analyses demonstrated that the combined exposure to MPs and heavy metal induced oxidative stress in alfalfa plants by increasing CAT activity and MDA accumulation. The present investigation highlights the ecological risks of microplastics in terrestrial environment.
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Affiliation(s)
- Lina Chebbi
- LEESU, Université Paris Est Créteil, Ecole des ponts, Créteil, France; Laboratory of Ecotoxicology and Agrobiodiversity, Higher Institute of Agronomy Chott-Meriem, Sousse University, Tunisia
| | - Iteb Boughattas
- Laboratory of Ecotoxicology and Agrobiodiversity, Higher Institute of Agronomy Chott-Meriem, Sousse University, Tunisia; Regional Field Crops Research Center of Beja, IRESA, Tunisia.
| | - Sondes Helaoui
- Laboratory of Ecotoxicology and Agrobiodiversity, Higher Institute of Agronomy Chott-Meriem, Sousse University, Tunisia
| | - Marouane Mkhinini
- LEESU, Université Paris Est Créteil, Ecole des ponts, Créteil, France; Laboratory of Ecotoxicology and Agrobiodiversity, Higher Institute of Agronomy Chott-Meriem, Sousse University, Tunisia
| | - Hiba Jabnouni
- Laboratory of Ecotoxicology and Agrobiodiversity, Higher Institute of Agronomy Chott-Meriem, Sousse University, Tunisia
| | - Eya Ben Fadhl
- Laboratory of Ecotoxicology and Agrobiodiversity, Higher Institute of Agronomy Chott-Meriem, Sousse University, Tunisia
| | - Vanessa Alphonse
- LEESU, Université Paris Est Créteil, Ecole des ponts, Créteil, France
| | - Alexandre Livet
- LEESU, Université Paris Est Créteil, Ecole des ponts, Créteil, France
| | | | - Mohamed Banni
- Laboratory of Ecotoxicology and Agrobiodiversity, Higher Institute of Agronomy Chott-Meriem, Sousse University, Tunisia; Higher Institute of Biotechnology, Monastir University, Tunisia
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16
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Zhang Y, Zhao B, Zhang X, Li Y, Liu H, Zhang J, Wang T. Effect of Polystyrene Microplastics on Pb(II) Adsorption onto a Loessial Soil (Sierozem) and Its Mechanism. ACS OMEGA 2024; 9:32021-32032. [PMID: 39072141 PMCID: PMC11270551 DOI: 10.1021/acsomega.4c03809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/21/2024] [Revised: 07/04/2024] [Accepted: 07/05/2024] [Indexed: 07/30/2024]
Abstract
Microplastics (MPs) have received significant attention recently. However, their influence on soil heavy metal adsorption remains unclear. The effect of polystyrene (PS) MPs on the adsorption of Pb(II) onto a loessial soil (sierozem) was studied by batch experiments in single soil (S), soil with 1 mm PS (S-PS1), and soil with 100 μm PS (S-PS100) systems. The mechanisms of Pb(II) adsorption reduction were investigated. The adsorption of Pb(II) reached equilibrium within 12 h, and the pseudo-second-order model fitted the adsorption processes best. The Langmuir adsorption model provided a better fit to the isotherms, compared to the Freundlich one. The presence of PS decreased the level of adsorption of Pb(II). Larger PS particle size, dose, and fulvic acid (FA) concentration inhibited Pb(II) adsorption onto the soil. The solution pH value showed a positive correlation with the adsorption amount. The adsorption amounts (q e) of Pb(II) in binary metal systems (Cu-Pb and Cd-Pb) were lower than those in single Pb systems, indicating the competitive adsorption among the ions. The adsorption amount presented a trend of S > S-PS100 > S-PS1. The primary mechanism on which PS reduced the adsorption of Pb(II) was the "dilution effect" of MPs. Conclusively, the presence of MPs might elevate the availability of heavy metals by reducing the soil's adsorption capacity for them and then amplifying the risk of heavy metal contamination and migration.
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Affiliation(s)
- Yin Zhang
- School of Environmental and
Municipal Engineering, Lanzhou Jiaotong
University, Lanzhou 730070, Gansu Province, P. R. China
| | - Baowei Zhao
- School of Environmental and
Municipal Engineering, Lanzhou Jiaotong
University, Lanzhou 730070, Gansu Province, P. R. China
| | - Xin Zhang
- School of Environmental and
Municipal Engineering, Lanzhou Jiaotong
University, Lanzhou 730070, Gansu Province, P. R. China
| | - Yingquan Li
- School of Environmental and
Municipal Engineering, Lanzhou Jiaotong
University, Lanzhou 730070, Gansu Province, P. R. China
| | - Hui Liu
- School of Environmental and
Municipal Engineering, Lanzhou Jiaotong
University, Lanzhou 730070, Gansu Province, P. R. China
| | - Jian Zhang
- School of Environmental and
Municipal Engineering, Lanzhou Jiaotong
University, Lanzhou 730070, Gansu Province, P. R. China
| | - Tao Wang
- School of Environmental and
Municipal Engineering, Lanzhou Jiaotong
University, Lanzhou 730070, Gansu Province, P. R. China
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17
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Li B, Mao R, Chen Z, Zhang Y, Song J, Li N, Tang B, Feng J, Guan M. The competition of heavy metals between hyporheic sediments and microplastics of driving factors in the Beiluo River Basin. JOURNAL OF HAZARDOUS MATERIALS 2024; 473:134538. [PMID: 38761759 DOI: 10.1016/j.jhazmat.2024.134538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2024] [Revised: 04/25/2024] [Accepted: 05/03/2024] [Indexed: 05/20/2024]
Abstract
Both sediments and microplastics (MPs) are medias of heavy metals (HMs) in river ecosystems. This study investigated HMs (Mn, Cr, V, As, Cu, Co, Cd, Pb, and Ni) concentration and driving factors for competitive enrichment between hyporheic sediments versus MPs. The medias basic characteristics indicated that the sediments were mostly sand and rich in Fe2O3; three polymer types were identified, with blue, fragment, less than 500 µm being the main types of MPs. The results have shown that the average content of extracted HMs in MPs was much higher than that of the same metals accumulated in sediments. HMs in sediments and MPs reached heavily polluted at some points, among which As and Cd were ecological risks. Electrostatic adsorption and surface complexation, and biofilm-mediated and organic matter complexation were the interaction mechanism of HMs with sediments and MPs. Further, the driving factors affecting the distribution of HMs in the two carriers were analyzed by multivariate statistical analysis. The results demonstrated that carrier characteristics, hydrochemical factors, and the inherent metal load of MPs were the main causes of the high HMs content. These findings improved our understanding of HMs fate and environmental risks across multiple medias.
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Affiliation(s)
- Bingjie Li
- Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity, College of Urban and Environmental Sciences, Northwest University, Xi'an 710127, China
| | - Ruichen Mao
- Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity, College of Urban and Environmental Sciences, Northwest University, Xi'an 710127, China
| | - Zeyu Chen
- Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity, College of Urban and Environmental Sciences, Northwest University, Xi'an 710127, China
| | - Yuting Zhang
- Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity, College of Urban and Environmental Sciences, Northwest University, Xi'an 710127, China
| | - Jinxi Song
- Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity, College of Urban and Environmental Sciences, Northwest University, Xi'an 710127, China; Yellow River Institute of Shaanxi Province, Northwest University, Xi'an 710127, China.
| | - Nan Li
- Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity, College of Urban and Environmental Sciences, Northwest University, Xi'an 710127, China
| | - Bin Tang
- Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity, College of Urban and Environmental Sciences, Northwest University, Xi'an 710127, China
| | - Jiayuan Feng
- Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity, College of Urban and Environmental Sciences, Northwest University, Xi'an 710127, China
| | - Mingchang Guan
- Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity, College of Urban and Environmental Sciences, Northwest University, Xi'an 710127, China
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18
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López AR, Binda G, Roncoroni G, Recchia S, Monticelli D, Spanu D. Optimizing Antimony Speciation Analysis via Frontal Chromatography-ICP-MS to Explore the Release of PET Additives. Molecules 2024; 29:2870. [PMID: 38930935 PMCID: PMC11207106 DOI: 10.3390/molecules29122870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2024] [Revised: 06/12/2024] [Accepted: 06/14/2024] [Indexed: 06/28/2024] Open
Abstract
Antimony (Sb) contamination poses significant environmental and health concerns due to its toxic nature and widespread presence, largely from anthropogenic activities. This study addresses the urgent need for an accurate speciation analysis of Sb, particularly in water sources, emphasizing its migration from polyethylene terephthalate (PET) plastic materials. Current methodologies primarily focus on total Sb content, leaving a critical knowledge gap for its speciation. Here, we present a novel analytical approach utilizing frontal chromatography coupled with inductively coupled plasma mass spectrometry (FC-ICP-MS) for the rapid speciation analysis of Sb(III) and Sb(V) in water. Systematic optimization of the FC-ICP-MS method was achieved through multivariate data analysis, resulting in a remarkably short analysis time of 150 s with a limit of detection below 1 ng kg-1. The optimized method was then applied to characterize PET leaching, revealing a marked effect of the plastic aging and manufacturing process not only on the total amount of Sb released but also on the nature of leached Sb species. This evidence demonstrates the effectiveness of the FC-ICP-MS approach in addressing such an environmental concern, benchmarking a new standard for Sb speciation analysis in consideration of its simplicity, cost effectiveness, greenness, and broad applicability in environmental and health monitoring.
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Affiliation(s)
- Alejandro R. López
- University School for Advanced Studies IUSS Pavia, 27100 Pavia, Italy;
- Department of Science and High Technology, University of Insubria, Via Valleggio 11, 22100 Como, Italy; (G.B.); (G.R.); (S.R.)
| | - Gilberto Binda
- Department of Science and High Technology, University of Insubria, Via Valleggio 11, 22100 Como, Italy; (G.B.); (G.R.); (S.R.)
- Norwegian Institute for Water Research (NIVA), Økernveien 94, 0579 Oslo, Norway
| | - Gianluca Roncoroni
- Department of Science and High Technology, University of Insubria, Via Valleggio 11, 22100 Como, Italy; (G.B.); (G.R.); (S.R.)
| | - Sandro Recchia
- Department of Science and High Technology, University of Insubria, Via Valleggio 11, 22100 Como, Italy; (G.B.); (G.R.); (S.R.)
| | - Damiano Monticelli
- Department of Science and High Technology, University of Insubria, Via Valleggio 11, 22100 Como, Italy; (G.B.); (G.R.); (S.R.)
| | - Davide Spanu
- Department of Science and High Technology, University of Insubria, Via Valleggio 11, 22100 Como, Italy; (G.B.); (G.R.); (S.R.)
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19
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Gani A, Pathak S, Hussain A, Shukla AK, Chand S. Emerging pollutant in surface water bodies: a review on monitoring, analysis, mitigation measures and removal technologies of micro-plastics. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2024; 46:214. [PMID: 38842590 DOI: 10.1007/s10653-024-01992-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Accepted: 04/09/2024] [Indexed: 06/07/2024]
Abstract
Water bodies play a crucial role in supporting life, maintaining the environment, and preserving the ecology for the people of India. However, in recent decades, human activities have led to various alterations in aquatic environments, resulting in environmental degradation through pollution. The safety of utilizing surface water sources for drinking and other purposes has come under intense scrutiny due to rapid population growth and industrial expansion. Surface water pollution due to micro-plastics (MPs) (plastics < 5 mm in size) is one of the emerging pollutants in metropolitan cities of developing countries because of its utmost resilience and synthetic nature. Recent studies on the surface water bodies (river, pond, Lake etc.) portrait the correlation between the MPs level with different parameters of pollution such as specific conductivity, total phosphate, and biological oxygen demand. Fibers represent the predominant form of MPs discovered in surface water bodies, exhibiting fluctuations across seasons. Consequently, present study prioritizes understanding the adaptation, prevalence, attributes, fluctuations, and spatial dispersion of MPs in both sediment and surface water environments. Furthermore, the study aims to identify existing gaps in the current understanding and underscore opportunities for future investigation. From the present study, it has been reported that, the concentration of MPs in the range of 0.2-45.2 items/L at the Xisha Islands in the south China sea, whereas in India it was found in the range of 96 items/L in water samples and 259 items/kg in sediment samples. This would certainly assist the urban planners in achieving sustainable development goals to mitigate the increasing amount of emergent pollutant load.
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Affiliation(s)
- Abdul Gani
- Civil Engineering Department, Netaji Subhas University of Technology, New Delhi, 110073, India
| | - Shray Pathak
- Department of Civil Engineering, Indian Institute of Technology Ropar, Rupnagar, Punjab, 140001, India.
| | - Athar Hussain
- Civil Engineering Department, Netaji Subhas University of Technology, New Delhi, 110073, India
| | - Anoop Kumar Shukla
- Manipal School of Architecture and Planning, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Sasmita Chand
- Manipal School of Architecture and Planning, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
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20
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Devi SS, Gouri BR, Anjali S, Kumar AB. Microplastic contamination in Ashtamudi Lake, India: Insights from a Ramsar wetland. JOURNAL OF CONTAMINANT HYDROLOGY 2024; 264:104367. [PMID: 38772271 DOI: 10.1016/j.jconhyd.2024.104367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 05/05/2024] [Accepted: 05/13/2024] [Indexed: 05/23/2024]
Abstract
Estuaries function as temporary storage sites for plastic debris, influencing the distribution of microplastics (MPs) across ecosystems. This research delves into the presence of MPs in the water, sediment, fish, and shellfish of Ashtamudi Lake, a Ramsar wetland with brackish water located on the southwest coast of India. Given the lake's significance in supporting the livelihoods of numerous fishers and acting as a vital source of fishery resources for both local consumption and export, examining the contamination of the system by MPs becomes particularly pertinent. The highest percentage composition of MPs was found in macrofauna at 60.6% (with fish at 19.6% and shellfish at 40.9%), followed by sediment (22.8%) and water (16.7%). The primary types of MPs identified in all samples were fibers (35.6%), fragments (33.3%), and films (28%), with beads being the least represented at 3.03%. ATR-FTIR and Raman spectra analysis identified five polymers from shellfish (polypropylene, polyethylene, polystyrene, nylon, and polyvinyl chloride), five from fish guts (nylon, polypropylene, polyethylene, polyurethane, and polysiloxane), four in sediment (polypropylene, polyethylene, nylon, rayon), and four in water samples (polypropylene, polyethylene, nylon, and polystyrene). SEM-EDAX analysis of MPs obtained from the samples revealed degradation and the presence of inorganic elements such as Na, Mg, Al, Si, S, K, Cl, P, and Ca, as well as heavy metals like Pb, Mo, Rh, Pd, Ti, and Fe. The existence of these plastic polymers and heavy metals in microplastic samples poses a threat to vulnerable biota; people consume contaminated fish and shellfish, underscoring the importance of monitoring MPs in lake water. This investigation of MPs in Ashtamudi Lake highlights the system's susceptibility to plastic pollution and the bioavailability of smaller MPs to aquatic organisms. Identified sources of MPs in the lake include fishing and aquaculture activities, sewage pollution, improper solid waste management in lake watersheds, and unsustainable tourism. Upstream and downstream management interventions are recommended to address MP pollution in Ashtamudi Lake.
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Affiliation(s)
- Suvarna S Devi
- Department of Aquatic Biology and Fisheries, University of Kerala, Thiruvananthapuram 695581, Kerala, India
| | - Beena Ramachandran Gouri
- Department of Aquatic Biology and Fisheries, University of Kerala, Thiruvananthapuram 695581, Kerala, India
| | - S Anjali
- Department of Aquatic Biology and Fisheries, University of Kerala, Thiruvananthapuram 695581, Kerala, India
| | - Appukuttannair Biju Kumar
- Department of Aquatic Biology and Fisheries, University of Kerala, Thiruvananthapuram 695581, Kerala, India.
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21
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An Q, Zhen Z, Zhong N, Qiu D, Xie Y, Yan C. Effects of biodegradable microplastics on arsenic migration and transformation in paddy soils: a comparative analysis with conventional microplastics. JOURNAL OF HAZARDOUS MATERIALS 2024; 469:134053. [PMID: 38508111 DOI: 10.1016/j.jhazmat.2024.134053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2023] [Revised: 02/18/2024] [Accepted: 03/14/2024] [Indexed: 03/22/2024]
Abstract
The combined pollution of microplastics (MPs) and arsenic (As) in paddy soils has attracted more attention worldwide. However, there are few comparative studies on the effects of biodegradable and conventional MPs on As migration and transformation. Therefore, conventional (polystyrene, polyethylene, polyvinyl chloride) and biodegradable (polybutadiene styrene, polylactic acid, polybutylene adipate terephthalate) MPs were selected to explore and demonstrate their influences and mechanism on As migration from paddy soils to overlying water and As speciation transformation through microcosmic experiment with measuring the changes of As chemical distribution, physicochemical indexes and microbial community in paddy soils. The results showed that biodegradable MPs enhanced As migration and transformation more effective than conventional MPs during 60 d. Biodegradable MPs indirectly increased the content of As(Ⅲ) and bioavailable As by changing the microbial community structure and affecting the biogeochemical cycles of carbon, nitrogen, sulfur and iron in soils, and promoted the As migration and transformation. PBS showed the strongest promoting effect, transforming to more As(Ⅲ) (11.43%) and bioavailable As (4.28%) than control. This helps to a better understanding of the effects of MPs on As biogeochemical cycle and to clarify the ecological and food safety risks of their combined pollution in soils.
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Affiliation(s)
- Qiuying An
- Key Laboratory of Urban Environment and Health, Fujian Key Laboratory of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhuo Zhen
- Key Laboratory of Urban Environment and Health, Fujian Key Laboratory of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Nijing Zhong
- Key Laboratory of Urban Environment and Health, Fujian Key Laboratory of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Donghua Qiu
- Key Laboratory of Urban Environment and Health, Fujian Key Laboratory of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yunhe Xie
- Hunan Institute of Agro-Environment and Ecology/Key Laboratory of Agro, Environment in Midstream of Yangtze Plain, Ministry of Agriculture and Rural Affairs, Changsha 410013, China
| | - Changzhou Yan
- Key Laboratory of Urban Environment and Health, Fujian Key Laboratory of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China.
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22
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Duan LY, Zhang Y, Li YY, Li XQ, Liu YQ, Li BL, Ding CY, Ren XM, Duan PF, Han H, Chen ZJ. Effects of combined microplastic and cadmium pollution on sorghum growth, Cd accumulation, and rhizosphere microbial functions. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 277:116380. [PMID: 38677068 DOI: 10.1016/j.ecoenv.2024.116380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 03/30/2024] [Accepted: 04/21/2024] [Indexed: 04/29/2024]
Abstract
The interaction between microplastics (MPs) and cadmium (Cd) poses a threat to agricultural soil environments, and their effects on plant growth and rhizosphere microbial community functions are not yet clear. In this study, energy sorghum was used as a test plant to investigate the effects of two types of MPs, polystyrene (PS) and polyethylene (PE), at different particle sizes (13 μm, 550 μm) and concentrations (0.1%, 1% w/w), and Cd, as well as their interactions, on the growth of sorghum in a soil-cultivation pot experiment. The results showed that the combined effects of MP and Cd pollution on the dry weight and Cd accumulation rate in sorghum varied depending on the type, concentration, and particle size of the MPs, with an overall trend of increasing stress from combined pollution with increasing Cd content and accumulation. High-throughput sequencing analysis revealed that combined MP and Cd pollution increased bacterial diversity, and the most significant increase was observed in the abundance-based coverage estimator (ACE), Shannon, and Sobs indices in the 13 μm 1% PS+Cd treatment group. Metagenomic analysis based on the Kyoto Encyclopedia of Genes and Genomes (KEGG) metabolic pathways revealed that 19 groups of metabolic pathways, including microbial metabolism and methane metabolism, differed significantly under combined MP and Cd pollution. Hierarchical clustering results indicated that Cd treatment and combined MP and Cd treatment affected the abundances of sorghum rhizosphere soil nitrogen (N) and phosphorus (P) cycling genes and that the type of MP present was an important factor affecting N and P cycling genes. The results of this study provide a basis for exploring the toxic effects of combined MP and Cd pollution and for conducting soil environmental risk assessments.
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Affiliation(s)
- Li-Yang Duan
- Overseas Expertise Introduction Center for Discipline Innovation of Watershed Ecological Security in the Water Source Area of the Mid-line Project of South-to-North Water Diversion, School of Water Resource and Environmental Engineering, Nanyang Normal University, Nanyang 473061, China
| | - Yu Zhang
- Overseas Expertise Introduction Center for Discipline Innovation of Watershed Ecological Security in the Water Source Area of the Mid-line Project of South-to-North Water Diversion, School of Water Resource and Environmental Engineering, Nanyang Normal University, Nanyang 473061, China
| | - Yu-Ying Li
- Overseas Expertise Introduction Center for Discipline Innovation of Watershed Ecological Security in the Water Source Area of the Mid-line Project of South-to-North Water Diversion, School of Water Resource and Environmental Engineering, Nanyang Normal University, Nanyang 473061, China.
| | - Xiao-Qi Li
- Overseas Expertise Introduction Center for Discipline Innovation of Watershed Ecological Security in the Water Source Area of the Mid-line Project of South-to-North Water Diversion, School of Water Resource and Environmental Engineering, Nanyang Normal University, Nanyang 473061, China
| | - Yong-Qi Liu
- Overseas Expertise Introduction Center for Discipline Innovation of Watershed Ecological Security in the Water Source Area of the Mid-line Project of South-to-North Water Diversion, School of Water Resource and Environmental Engineering, Nanyang Normal University, Nanyang 473061, China
| | - B Larry Li
- Overseas Expertise Introduction Center for Discipline Innovation of Watershed Ecological Security in the Water Source Area of the Mid-line Project of South-to-North Water Diversion, School of Water Resource and Environmental Engineering, Nanyang Normal University, Nanyang 473061, China
| | - Chuan-Yu Ding
- Overseas Expertise Introduction Center for Discipline Innovation of Watershed Ecological Security in the Water Source Area of the Mid-line Project of South-to-North Water Diversion, School of Water Resource and Environmental Engineering, Nanyang Normal University, Nanyang 473061, China
| | - Xue-Min Ren
- Overseas Expertise Introduction Center for Discipline Innovation of Watershed Ecological Security in the Water Source Area of the Mid-line Project of South-to-North Water Diversion, School of Water Resource and Environmental Engineering, Nanyang Normal University, Nanyang 473061, China
| | - Peng-Fei Duan
- Overseas Expertise Introduction Center for Discipline Innovation of Watershed Ecological Security in the Water Source Area of the Mid-line Project of South-to-North Water Diversion, School of Water Resource and Environmental Engineering, Nanyang Normal University, Nanyang 473061, China
| | - Hui Han
- Overseas Expertise Introduction Center for Discipline Innovation of Watershed Ecological Security in the Water Source Area of the Mid-line Project of South-to-North Water Diversion, School of Water Resource and Environmental Engineering, Nanyang Normal University, Nanyang 473061, China
| | - Zhao-Jin Chen
- Overseas Expertise Introduction Center for Discipline Innovation of Watershed Ecological Security in the Water Source Area of the Mid-line Project of South-to-North Water Diversion, School of Water Resource and Environmental Engineering, Nanyang Normal University, Nanyang 473061, China.
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Nauth SD, Campiglia AD. Sorption of Polycyclic Aromatic Sulfur Heterocycles (PASH) on Nylon Microplastics at Environmentally Relevant Concentrations. Molecules 2024; 29:1653. [PMID: 38611932 PMCID: PMC11013277 DOI: 10.3390/molecules29071653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 03/29/2024] [Accepted: 04/03/2024] [Indexed: 04/14/2024] Open
Abstract
Microplastics have garnered an infamous reputation as a sorbate for many concerning environmental pollutants and as a delivery vehicle for the aquatic food chain through the ingestion of these contaminated small particulates. While sorption mechanisms have been extensively studied for polycyclic aromatic hydrocarbons, polycyclic aromatic sulfur heterocycles (PASHs) have not been investigated, partly due to their low concentrations in aquatic ecosystems. Herein, an analytical methodology is presented for the analysis of dibenzothiophene, benzo[b]naphtho[1,2-b]thiophene, benzo[b]naphtho[2,1-b]thiophene, benzo[b]naphtho[2,3-b]thiophene, chryseno[4,5-bcd]thiophene and dinaphtho[1,2-b:1',2'-d]thiophene at relevant environmental concentrations based on solid phase extraction and high-performance liquid chromatography. The sorption uptake behavior and the sorption kinetics of the three benzo[b]napthothiophene isomers were then investigated on nylon microplastics to provide original information on their environmental fate and avoid human contamination through the food chain. The obtained information might also prove relevant to the development of successful remediation approaches for aquatic ecosystems.
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Affiliation(s)
| | - Andres D. Campiglia
- Department of Chemistry, University of Central Florida, Physical Sciences Building. 4111, Orlando, FL 32816, USA;
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24
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Behmanesh M, Chamani A, Chavoshi E. Potentially Toxic Elements' Accumulation in Relation to Sediment Physicochemical Attributes and Microplastic Content in Zayandeh-Rood River, Iran. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2024; 86:274-287. [PMID: 38551678 DOI: 10.1007/s00244-024-01059-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Accepted: 03/06/2024] [Indexed: 04/21/2024]
Abstract
Microplastics (MPs) are an emerging pollutant whose ability to adsorb potentially toxic elements (PTEs) poses a serious threat to aquatic ecosystems, including rivers. In highly developed basins, the abundance of MPs in river sediment is expected to be high, elevating the sedimentary accumulation of PTEs. This hypothesis was tested in the Zayandeh-Rood River, Central Iran, with 21 sediment sampling stations distributed along the entire river stretch. Results of sediment analysis showed significant variations in the abundance and size of MPs, with concentrations ranked as Ba (270.71 mg/kg) > Li (21.29 mg/kg) > Cs (2.50 mg/kg) > Be (1.44 mg/kg) > Sn (1.17 mg/kg) > Mo (1.06 mg/kg) > Ag (0.76 mg/kg), along with sediment physicochemical attributes such as EC, TOC, pH and grain size. MPs were identified in all sediment samples with a mean of 588 items/kg dry weight. Except for Ag, all other PTEs were classified as uncontaminated but exhibited increased enrichment downstream. According to the results of the generalized additive model (maximum R-sq of 0.766), the sedimentary concentration of the majority of PTEs is nonlinearly and positively associated with smaller and more abundant MPs. This study acknowledges that MPs might influence sediment porosity, permeability and structure, thereby directly affecting the settling dynamics of other particles, especially PTEs.
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Affiliation(s)
- Mokarrameh Behmanesh
- Environmental Science and Engineering Department, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran
| | - Atefeh Chamani
- Environmental Science and Engineering Department, Waste and Wastewater Research Center, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran.
| | - Elham Chavoshi
- Department of Soil Science, College of Agriculture, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran
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25
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Xue Z, Xiong Z, Wei Z, Wang L, Xu M. Interactive Effects of Polyethylene Microplastics and Cadmium on Growth of Microcystis aeruginosa. TOXICS 2024; 12:254. [PMID: 38668477 PMCID: PMC11053517 DOI: 10.3390/toxics12040254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Revised: 03/26/2024] [Accepted: 03/26/2024] [Indexed: 04/29/2024]
Abstract
Polyethylene (PE) is a common component of microplastic pollution, and cadmium (Cd) is a prevalent pollutant in contaminated freshwater bodies in China. Among cyanobacteria, Microcystis aeruginosa (M. aeruginosa) plays a crucial role in the formation of algal blooms in these water systems. However, there has been limited research on how microplastics and heavy metals affect cyanobacteria ecologically. This study aimed to evaluate the physiological effects of individual and combined exposure to Cd pollutants and microplastics on M. aeruginosa. The solutions containing 13 µm and 6.5 µm PE particles (100 mg/L) with Cd were used in the research. The results indicated that the combined treatment led to a significant inhibition of chlorophyll a content, dropping to zero by day 5. The treated groups exhibited higher microcystins (MCs) content compared to the control group, suggesting increased MCs release due to pollutant exposure. Interestingly, the adsorption of heavy metals by microplastics partially alleviated the toxicity of heavy metals on algal cells. Moreover, the combined treatment significantly suppressed catalase (CAT) activity compared to Cd treatment, indicating a synergistic effect that led to greater oxidative stress. Overall, this study provides valuable insights into the impact of PE and Cd pollution on freshwater ecosystems, elucidates the physiological responses of cyanobacteria to these pollutants, and establishes a theoretical groundwork for addressing complex water pollution using cyanobacteria-based strategies.
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Affiliation(s)
- Zihan Xue
- Miami College, Jinming Campus, Henan University, Kaifeng 475004, China; (Z.X.); (Z.X.); (Z.W.)
| | - Zetao Xiong
- Miami College, Jinming Campus, Henan University, Kaifeng 475004, China; (Z.X.); (Z.X.); (Z.W.)
| | - Zhangdong Wei
- Miami College, Jinming Campus, Henan University, Kaifeng 475004, China; (Z.X.); (Z.X.); (Z.W.)
| | - Lin Wang
- Miami College, Jinming Campus, Henan University, Kaifeng 475004, China; (Z.X.); (Z.X.); (Z.W.)
- College of Geography and Environmental Science, Jinming Campus, Henan University, Kaifeng 475004, China
- Henan Key Laboratory of Earth System Observation and Modeling, Jinming Campus, Henan University, Kaifeng 475004, China
| | - Ming Xu
- College of Geography and Environmental Science, Jinming Campus, Henan University, Kaifeng 475004, China
- Henan Key Laboratory of Earth System Observation and Modeling, Jinming Campus, Henan University, Kaifeng 475004, China
- Guangdong-Hong Kong Joint Laboratory for Carbon Neutrality, Jiangmen Laboratory of Carbon Science and Technology, Jiangmen 529199, China
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26
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Liu B, Zhao S, Qiu T, Cui Q, Yang Y, Li L, Chen J, Huang M, Zhan A, Fang L. Interaction of microplastics with heavy metals in soil: Mechanisms, influencing factors and biological effects. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 918:170281. [PMID: 38272091 DOI: 10.1016/j.scitotenv.2024.170281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 01/16/2024] [Accepted: 01/17/2024] [Indexed: 01/27/2024]
Abstract
Microplastics (MPs) and heavy metals (HMs) in soil contamination are considered an emerging global problem that poses environmental and health risks. However, their interaction and potential biological effects remain unclear. Here, we reviewed the interaction of MPs with HMs in soil, including its mechanisms, influencing factors and biological effects. Specifically, the interactions between HMs and MPs mainly involve sorption and desorption. The type, aging, concentration, size of MPs, and the physicochemical properties of HMs and soil have significant impacts on the interaction. In particular, MP aging affects specific surface areas and functional groups. Due to the small size and resistance to decomposition characteristics of MPs, they are easily transported through the food chain and exhibit combined biological effects with HMs on soil organisms, thus accumulating in the human body. To comprehensively understand the effect of MPs and HMs in soil, we propose combining traditional experiments with emerging technologies and encouraging more coordinated efforts.
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Affiliation(s)
- Baiyan Liu
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, CAS and MWR, Yangling 712100, China; The Research Center of Soil and Water Conservation and Ecological Environment, CAS and MOE, Yangling 712100, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shuling Zhao
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, CAS and MWR, Yangling 712100, China; The Research Center of Soil and Water Conservation and Ecological Environment, CAS and MOE, Yangling 712100, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Tianyi Qiu
- College of Natural Resources and Environment, Northwest A&F University, Yangling, China; Key Laboratory of Green Utilization of Critical Non-metallic Mineral Resources, Ministry of Education, Wuhan University of Technology, Wuhan, China
| | - Qingliang Cui
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, CAS and MWR, Yangling 712100, China; The Research Center of Soil and Water Conservation and Ecological Environment, CAS and MOE, Yangling 712100, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yuyi Yang
- Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China
| | - Lili Li
- Central Laboratory, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Jing Chen
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Min Huang
- Hubei Key Laboratory of Mineral Resources Processing and Environment, School of Resources and Environmental Engineering, State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan, China
| | - Ai Zhan
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, CAS and MWR, Yangling 712100, China; The Research Center of Soil and Water Conservation and Ecological Environment, CAS and MOE, Yangling 712100, China; College of Soil and Water Conservation Science and Engineering (Institute of Soil and Water Conservation), Northwest A&F University, Yangling, China.
| | - Linchuan Fang
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, CAS and MWR, Yangling 712100, China; The Research Center of Soil and Water Conservation and Ecological Environment, CAS and MOE, Yangling 712100, China; Key Laboratory of Green Utilization of Critical Non-metallic Mineral Resources, Ministry of Education, Wuhan University of Technology, Wuhan, China.
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27
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Chen L, Shao H, Ren Y, Mao C, Chen K, Wang H, Jing S, Xu C, Xu G. Investigation of the adsorption behavior and adsorption mechanism of pollutants onto electron beam-aged microplastics. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 917:170298. [PMID: 38272098 DOI: 10.1016/j.scitotenv.2024.170298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 01/15/2024] [Accepted: 01/18/2024] [Indexed: 01/27/2024]
Abstract
Microplastics, as an emerging pollutant, are widely distributed worldwide. Extensive research has been conducted to address the issue of microplastic pollution; however, effective methods for microplastic treatment are still lacking. This study innovatively utilizes electron beam technology to age and degrade microplastics. Compared to other treatment methods, electron beam technology can effectively promote the aging and degradation of microplastics. The Oxygen - carbon ratio of aged microplastics reached 0.071, with a mass loss of 48 % and a carbonyl index value of 0.69, making it the most effective method for short-term aging treatment in current research efforts. Theoretical calculations and experimental results demonstrate that a large number of oxygen-containing functional groups are generated on the surface of microplastics after electron beam irradiation, changing their adsorption performance for pollutants. Theoretical calculations show that an increase in oxygen-containing functional groups on the surface leads to a gradual decrease in hydrophobic pollutant adsorption capacity while increasing hydrophilic pollutant adsorption capacity for aged microplastics. Experimental studies were conducted to investigate the adsorption behavior and process of typical pollutants by aged microplastics which conform to pseudo-second-order kinetics and Henry model during the adsorption process, and the adsorption results are consistent with theoretical calculations. The results show that the degradation of microplastics is mainly due to hydroxyl radicals generated by electron beam irradiation, which can break the carbon chain of microplastics and gradually degrade them into small molecular esters and alcohols. Furthermore, studies have shown that microplastics can desorb pollutants in pure water and simulated gastric fluid. Overall, electron beam irradiation is currently the most effective method for degrading microplastics. These results also clearly elucidate the characteristics and mechanisms of the interaction between aged microplastics and organic pollutants, providing further insights for assessing microplastic pollution in real-world environments.
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Affiliation(s)
- Lei Chen
- School of Environmental and Chemical Engineering, Shanghai University, 99 Shangda Road, Shanghai 200444, PR China
| | - Haiyang Shao
- School of Environmental and Chemical Engineering, Shanghai University, 99 Shangda Road, Shanghai 200444, PR China
| | - Yingfei Ren
- School of Environmental and Chemical Engineering, Shanghai University, 99 Shangda Road, Shanghai 200444, PR China
| | - Chengkai Mao
- School of Environmental and Chemical Engineering, Shanghai University, 99 Shangda Road, Shanghai 200444, PR China
| | - Kang Chen
- School of Environmental and Chemical Engineering, Shanghai University, 99 Shangda Road, Shanghai 200444, PR China
| | - Hongyong Wang
- Key Laboratory of Organic Compound Pollution Control Engineering, Ministry of Education, Shanghai 200444, PR China.
| | - Shuting Jing
- School of Environmental and Chemical Engineering, Shanghai University, 99 Shangda Road, Shanghai 200444, PR China
| | - Chengwei Xu
- School of Environmental and Chemical Engineering, Shanghai University, 99 Shangda Road, Shanghai 200444, PR China
| | - Gang Xu
- School of Environmental and Chemical Engineering, Shanghai University, 99 Shangda Road, Shanghai 200444, PR China; Key Laboratory of Organic Compound Pollution Control Engineering, Ministry of Education, Shanghai 200444, PR China.
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28
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Zhou S, Wang L, Liu J, Zhang C, Liu X. Microplastics' toxic effects and influencing factors on microorganisms in biological wastewater treatment units. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2024; 89:1539-1553. [PMID: 38557717 DOI: 10.2166/wst.2024.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 01/03/2024] [Indexed: 04/04/2024]
Abstract
Prior to entering the water body, microplastics (MPs) are mostly collected at the sewage treatment plant and the biological treatment unit is the sewage treatment facility's central processing unit. This review aims to present a comprehensive analysis of the detrimental impacts of MPs on the biological treatment unit of a sewage treatment plant and it covers how MPs harm the effluent quality of biological treatment processes. The structure of microbial communities is altered by MPs presence and additive release, which reduces functional microbial activity. Extracellular polymers, oxidative stress, and enzyme activity are explored as micro views on the harmful mechanism of MPs on microorganisms, examining the toxicity of additives released by MPs and the harm caused to microorganisms by harmful compounds that have been adsorbed in the aqueous environment. This article offers a theoretical framework for a thorough understanding of the potential problems posed by MPs in sewage treatment plants and suggests countermeasures to mitigate those risks to the aquatic environment.
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Affiliation(s)
- Sijie Zhou
- College of Marine and Environmental Sciences, Tianjin University of Science & Technology, Tianjin 300457, China; Sijie Zhou and Lili Wang contributed equally to this work
| | - Lili Wang
- Waterway Transportation Environmental Protection Technology Laboratory, Tianjin Institute of Water Transportation Engineering Science and Research, Ministry of Transportation, Tianjin 300456, China; Sijie Zhou and Lili Wang contributed equally to this work
| | - Jin Liu
- College of Marine and Environmental Sciences, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Chuanguo Zhang
- Waterway Transportation Environmental Protection Technology Laboratory, Tianjin Institute of Water Transportation Engineering Science and Research, Ministry of Transportation, Tianjin 300456, China
| | - Xianbin Liu
- College of Marine and Environmental Sciences, Tianjin University of Science & Technology, Tianjin 300457, China E-mail:
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29
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Song H, Xiao S, Zhou X, Li Y, Tao M, Wu F, Xu X. Temporal dynamics of bacterial colonization on five types of microplastics in a freshwater lake. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 913:169697. [PMID: 38163614 DOI: 10.1016/j.scitotenv.2023.169697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 12/22/2023] [Accepted: 12/24/2023] [Indexed: 01/03/2024]
Abstract
Microplastics (MPs), as a new substrate, provide a unique niche for microbial colonization in the freshwater ecosystems; however, the impacts of long-term MP exposure on colonized bacteria are still unclear. In this study, five MP types were exposed in a freshwater lake for approximately one year, and the MP particles, together with the surrounding water, were collected on days 60, 150, 250 and 330 during the in situ field experiment. Bacteria on the MP surface, as well as free-living bacteria in the surrounding water, were analyzed to evaluate the temporal dynamics of these bacterial communities. Results show that all five MP types exhibited signs of degradation during the exposure process. Additionally, the alpha diversity, community structure and composition of MP-attached bacteria significantly differed from that of the free-living bacteria in the surrounding water, indicating that the five MP types could provide a preferable niche for bacterial colonization in a freshwater environment. Proteobacteria, Chloroflexi, Verrucomicrobiota, Actinobacteriota and Firmicutes were the top five dominant phyla. Some plastic-degrading bacteria included in these phyla were detected, verifying that MP-attached biofilms had a certain degree of MP degradation potential. Some potentially pathogenic bacteria were also detected, suggesting an ecological threat for spreading disease in the aquatic ecosystem. Furthermore, the bacterial community and some metabolic pathways were significantly affected by the MP type (P < 0.01) and exposure time (P < 0.01), indicating that the presence of MPs not only alters the bacterial community structure and composition, but also influences their potential functional properties in freshwater ecosystems. Multiple factors, including the physicochemical properties related to MPs and the environmental parameters of the surrounding water, affect the community composition and the function of MP-attached bacteria to different degrees. Our findings indicate that the presence of MPs has a potential ecological impact on freshwater ecosystems.
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Affiliation(s)
- Haiya Song
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Sisi Xiao
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Xiaohong Zhou
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China.
| | - Yanan Li
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Miaomiao Tao
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Fan Wu
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Xiaohong Xu
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
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Aierken R, Zhang Y, Zeng Q, Yong L, Qu J, Tong H, Wang X, Zhao L. Microplastics Prevalence in Different Cetaceans Stranded along the Western Taiwan Strait. Animals (Basel) 2024; 14:641. [PMID: 38396609 PMCID: PMC10885933 DOI: 10.3390/ani14040641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 02/09/2024] [Accepted: 02/12/2024] [Indexed: 02/25/2024] Open
Abstract
Microplastics (MPs) pollution is of global concern, which poses serious threats to various marine organisms, including many threatened apex predators. In this study, MPs were investigated from nine cetaceans of four different species, comprising one common dolphin (Delphinus delphis), two pygmy sperm whales (Kogia breviceps), one ginkgo-toothed beaked whale (Mesoplodon ginkgodens), and five Indo-Pacific humpback dolphins (Sousa chinensis) stranded along the western coast of the Taiwan Strait from the East China Sea based on Fourier transform infrared (FTIR) spectroscopy analysis. Mean abundances of 778 identified MPs items were 86.44 ± 12.22 items individual-1 and 0.43 ± 0.19 items g-1 wet weight of intestine contents, which were found predominantly to be transparent, fiber-shaped polyethylene terephthalate (PET) items usually between 0.5 and 5 mm. The abundance of MPs was found at a slightly higher level and significantly correlated with intestine contents mass (p = 0.0004*). The MPs source was mainly likely from synthetic fibers-laden sewage discharged from intense textile industries. Our report represents the first study of MPs in pelagic and deep-diving cetaceans in China, which not only adds baseline data on MPs for cetaceans in Asian waters but also highlights the further risk assessment of MPs consumption in these threatened species.
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Affiliation(s)
- Reyilamu Aierken
- Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China; (R.A.); (Y.Z.); (Q.Z.); (L.Y.); (J.Q.)
- Key Laboratory of Marine Ecological Conservation and Restoration, Ministry of Natural Resources, Xiamen 361005, China
- Fujian Provincial Key Laboratory of Marine Ecological Conservation and Restoration, Xiamen 361005, China
| | - Yuke Zhang
- Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China; (R.A.); (Y.Z.); (Q.Z.); (L.Y.); (J.Q.)
- Key Laboratory of Marine Ecological Conservation and Restoration, Ministry of Natural Resources, Xiamen 361005, China
- Fujian Provincial Key Laboratory of Marine Ecological Conservation and Restoration, Xiamen 361005, China
| | - Qianhui Zeng
- Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China; (R.A.); (Y.Z.); (Q.Z.); (L.Y.); (J.Q.)
- Key Laboratory of Marine Ecological Conservation and Restoration, Ministry of Natural Resources, Xiamen 361005, China
- Fujian Provincial Key Laboratory of Marine Ecological Conservation and Restoration, Xiamen 361005, China
| | - Liming Yong
- Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China; (R.A.); (Y.Z.); (Q.Z.); (L.Y.); (J.Q.)
- Key Laboratory of Marine Ecological Conservation and Restoration, Ministry of Natural Resources, Xiamen 361005, China
- Fujian Provincial Key Laboratory of Marine Ecological Conservation and Restoration, Xiamen 361005, China
| | - Jincheng Qu
- Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China; (R.A.); (Y.Z.); (Q.Z.); (L.Y.); (J.Q.)
- Key Laboratory of Marine Ecological Conservation and Restoration, Ministry of Natural Resources, Xiamen 361005, China
- Fujian Provincial Key Laboratory of Marine Ecological Conservation and Restoration, Xiamen 361005, China
| | - Haoran Tong
- Museum of Biology, Xiamen University, Xiamen 361005, China;
| | - Xianyan Wang
- Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China; (R.A.); (Y.Z.); (Q.Z.); (L.Y.); (J.Q.)
- Key Laboratory of Marine Ecological Conservation and Restoration, Ministry of Natural Resources, Xiamen 361005, China
- Fujian Provincial Key Laboratory of Marine Ecological Conservation and Restoration, Xiamen 361005, China
| | - Liyuan Zhao
- Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China; (R.A.); (Y.Z.); (Q.Z.); (L.Y.); (J.Q.)
- Key Laboratory of Marine Ecological Conservation and Restoration, Ministry of Natural Resources, Xiamen 361005, China
- Fujian Provincial Key Laboratory of Marine Ecological Conservation and Restoration, Xiamen 361005, China
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Xiong X, Wang J, Liu J, Xiao T. Microplastics and potentially toxic elements: A review of interactions, fate and bioavailability in the environment. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 340:122754. [PMID: 37844862 DOI: 10.1016/j.envpol.2023.122754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 10/06/2023] [Accepted: 10/13/2023] [Indexed: 10/18/2023]
Abstract
In recent years, microplastics (MPs) have obtained growing public concern due to widespread distribution and harmful impacts. Their distinctive features including porous structure, small size, as well as large specific surface area render MPs to be carriers for transporting other pollutants in the environment, especially potentially toxic elements (PTEs). Considering the hot topic of MPs, it is of great significance to comb the reported literature on environmental behaviors of co-occurrence of MPs and PTEs, and systematically discuss their co-mobility, transportation and biotoxicity to different living organisms in diverse environmental media. Therefore, the aim of this work is to systematically review and summarize recent advances on interactions and co-toxicity of MPs and PTEs, in order to provide in-depth understanding on the transport behaviors as well as environmental impacts. Electrostatic attraction and surface complexation mainly govern the interactions between MPs and PTEs, which are subordinated by other physical sorption processes. Besides, the adsorption behaviors are mainly determined by physicochemical properties regarding to different MPs types and various condition factors (e.g., ageing and PTEs concentrations, presence of substances). Generally speaking, recently published papers make a great progress in elucidating the mechanisms, impact factors, as well as thermodynamic and kinetic studies. Bioavailability and bioaccumulation by plant, microbes, and other organisms in both aquatic and terrestrial environment have also been under investigation. This review will shed novel perspectives on future research to meet the sustainable development goals, and obtain critical insights on revealing comprehensive mechanisms. It is crucial to promote efficient approaches on environmental quality improvement as well as management strategies towards the challenge of MPs-PTEs.
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Affiliation(s)
- Xinni Xiong
- Key Laboratory of Waters Safety & Protection in the Pearl River Delta, Ministry of Education, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China
| | - Jin Wang
- Key Laboratory of Waters Safety & Protection in the Pearl River Delta, Ministry of Education, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China
| | - Juan Liu
- Key Laboratory of Waters Safety & Protection in the Pearl River Delta, Ministry of Education, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China.
| | - Tangfu Xiao
- Key Laboratory of Waters Safety & Protection in the Pearl River Delta, Ministry of Education, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China
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Meng F, Ni Z, Tan L, Cai P, Wang J. Oxidative stress and energy metabolic response of Isochrysis galbana induced by different types of pristine and aging microplastics and their leachates. CHEMOSPHERE 2024; 348:140755. [PMID: 37995978 DOI: 10.1016/j.chemosphere.2023.140755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 11/14/2023] [Accepted: 11/16/2023] [Indexed: 11/25/2023]
Abstract
The aging process and leachate composition of different types of MPs (PS, PS-NH2, PS-COOH and PMMA) with a particle size of 1.0 μm were characterized, and marine microalgae Isochrysis galbana OA3011(I. galbana) was used as test organism to investigate the 96 h toxic effects of MPs before and after aging as well as leachate exposure. Except for polymethyl methacrylate (PMMA), all other tested microplastics showed significant aggregation in seawater, which increased with the presence of surface amino and carboxyl groups, in addition, the increase in polymer dispersibility index (PDI) values after aging reflected more severe aggregation. Fourier transform infrared spectrometer (FTIR) showed that the surface amino groups were shed during the aging of PS-NH2, which can likewise be demonstrated by the change in surface electric potential from positive to negative before and after aging. PMMA, due to the addition of plasticizers (HEHP and DIBP detected in high concentration) and its own structure, has stronger resistance to aging than the other three microplastics, and no significant aging phenomenon occurs. As for I. galbana, growth inhibition, oxidative stress and energy metabolism were tested after exposure to different microplastics and their leachate. It was found that high concentrations of A-PS had a greater negative impact on I. galbana, while the toxic effects of PS-NH2 and PS-COOH on I. galbana behaved in a diametrically opposite way before and after aging compared to PS with the inhibitory effect decreasing after aging, which was caused by the shedding of surface groups. As for PMMA, the differences in the toxic effects on microalgae before and after aging were not significant. The inhibitory effect of low concentrations of PAEs (Phthalate acid esters) in the leachate of PS-COOH on I. galbana was not significant, and the stronger inhibitory effect of 4 d L-PS-NH2 was presumed to be the shedding of positively charged groups.
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Affiliation(s)
- Fanmeng Meng
- Key Laboratory of Marine Chemistry Theory and Technology of the Ministry of Education, Ocean University of China, Qingdao, 266100, China
| | - Ziqi Ni
- Key Laboratory of Marine Chemistry Theory and Technology of the Ministry of Education, Ocean University of China, Qingdao, 266100, China
| | - Liju Tan
- Key Laboratory of Marine Chemistry Theory and Technology of the Ministry of Education, Ocean University of China, Qingdao, 266100, China
| | - Peining Cai
- Key Laboratory of Marine Chemistry Theory and Technology of the Ministry of Education, Ocean University of China, Qingdao, 266100, China
| | - Jiangtao Wang
- Key Laboratory of Marine Chemistry Theory and Technology of the Ministry of Education, Ocean University of China, Qingdao, 266100, China.
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Yang Q, Ma L, Qiu K, Feng Z, Wang Y, Zhong Z, Cheng F, Zhai T, Zeng J, Huang W. Characterization and risk assessment of microplastics in laver from the Yueqing Bay. MARINE ENVIRONMENTAL RESEARCH 2024; 193:106258. [PMID: 37989678 DOI: 10.1016/j.marenvres.2023.106258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 11/01/2023] [Accepted: 11/07/2023] [Indexed: 11/23/2023]
Abstract
Microplastics (MPs) pollution is regarded as a global challenge for ocean. As an important food source of human, macroalgae could suffer MP pollution and transmit MPs into human via food web. However, few studies have revealed the relationship of MP pollution between macroalgae and its habitat. In order to evaluate the trapping and accumulation of MPs in macroalgae and surface water, the present study investigated MP pollution in a typical aquaculture macroalgae species, laver (Porphyra haitanensis) in the Yueqing Bay. The results indicated MP abundance in laver (1.45 ± 0.26 items/g) was at a medium level while MP abundance in surface water (0.21 ± 0.15 item/m3) was at a relatively low level worldwide. Distribution trend and characteristics of MPs in laver and surface water showed highly similarity. Besides, heavy metal elements (Fe and Zr) were detected on the surface of MPs trapped by laver. Pollution load index (PLI) in surface water of the whole bay was low, indicating MP pollution was not serious in the Yueqing Bay. Due to the discharging of domestic sewage in recent years, fiber-shaped, textile MPs accounted for most in laver and surface water of the Yueqing Bay. These results indicated that MPs in surface water could be trapped by P. haitanensis, thus macroalgae cultivation might be a potential way to alleviate seawater MP pollution in the nearshore areas.
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Affiliation(s)
- Qikun Yang
- Key Laboratory of Marine Ecosystem Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China; Key Laboratory of Nearshore Engineering Environment and Ecological Security of Zhejiang Province, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China
| | - Lukuo Ma
- Key Laboratory of Marine Ecosystem Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China; Key Laboratory of Nearshore Engineering Environment and Ecological Security of Zhejiang Province, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China
| | - Kecheng Qiu
- Key Laboratory of Marine Ecosystem Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China
| | - Zhihua Feng
- Jiangsu Key Laboratory of Marine Bioresources and Environment, Jiangsu Ocean University, Lianyungang 222005, China
| | - Youji Wang
- Key Laboratory of Marine Ecosystem Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China; International Research Center for Marine Biosciences at Shanghai Ocean University, Ministry of Science and Technology, Shanghai 201306, China; Key Laboratory of Ocean Space Resource Management Technology, Ministry of Natural Resources, Hangzhou 310012, China.
| | - Zhen Zhong
- Key Laboratory of Marine Ecosystem Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China; Key Laboratory of Nearshore Engineering Environment and Ecological Security of Zhejiang Province, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China; International Research Center for Marine Biosciences at Shanghai Ocean University, Ministry of Science and Technology, Shanghai 201306, China
| | - Fangping Cheng
- Key Laboratory of Marine Ecosystem Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China; Key Laboratory of Nearshore Engineering Environment and Ecological Security of Zhejiang Province, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China
| | - Tianqi Zhai
- Key Laboratory of Marine Ecosystem Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China; Key Laboratory of Nearshore Engineering Environment and Ecological Security of Zhejiang Province, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China; Jiangsu Key Laboratory of Marine Bioresources and Environment, Jiangsu Ocean University, Lianyungang 222005, China
| | - Jiangning Zeng
- Key Laboratory of Marine Ecosystem Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China; Key Laboratory of Nearshore Engineering Environment and Ecological Security of Zhejiang Province, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China; Key Laboratory of Ocean Space Resource Management Technology, Ministry of Natural Resources, Hangzhou 310012, China; Ocean College, Zhejiang University, Zhoushan 316021, Zhejiang, China
| | - Wei Huang
- Key Laboratory of Marine Ecosystem Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China; Key Laboratory of Nearshore Engineering Environment and Ecological Security of Zhejiang Province, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China; Key Laboratory of Ocean Space Resource Management Technology, Ministry of Natural Resources, Hangzhou 310012, China; Ocean College, Zhejiang University, Zhoushan 316021, Zhejiang, China.
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Zhang Y, Li Y, Wang Y, Su F, Qian J, Liu S. Adsorption of levofloxacin by ultraviolet aging microplastics. CHEMOSPHERE 2023; 343:140196. [PMID: 37717913 DOI: 10.1016/j.chemosphere.2023.140196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 09/13/2023] [Accepted: 09/14/2023] [Indexed: 09/19/2023]
Abstract
Microplastics can combine with pollutants such as antibiotics and pose a threat to the environment and organisms. At the same time, the inevitable aging behavior of microplastics in the actual environment leads to changes in their physical and chemical properties, and thus changes the reaction mechanism between microplastics and other pollutants. In this study, we used three common microplastics PE/PS/PA to study the adsorption behavior of levofloxacin hydrochloride. Ultraviolet aging method was used to simulate the aging process of levofloxacin hydrochloride under sunlight, and compared with that of before aging. The results showed that the order of adsorption capacity was PS-UV > PA-UV > PE-UV > PA > PS > PE. Aging behavior can significantly enhance the adsorption capacity of microplastics to pollutants. Both Langmuir and Freundlich models can be used to fit the isothermal adsorption process well, indicating that the adsorption process was not a simple monolayer adsorption, but also a multi-molecular layer adsorption. The experiments showed that the adsorption process was affected by various mechanisms, including π-π conjugation, hydrogen bond, ion exchange and electrostatic interaction. This study elucidated the interaction mechanism between microplastics and levofloxacin hydrochloride, which has important significance for future control of microplastics and antibiotic pollution.
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Affiliation(s)
- Yue Zhang
- School of Resources and Civil Engineering, Northeastern University, Shenyang, 110819, China.
| | - Yinghua Li
- School of Resources and Civil Engineering, Northeastern University, Shenyang, 110819, China.
| | - Yiyan Wang
- School of Resources and Civil Engineering, Northeastern University, Shenyang, 110819, China.
| | - Fei Su
- School of Resources and Civil Engineering, Northeastern University, Shenyang, 110819, China.
| | - Jie Qian
- School of Resources and Civil Engineering, Northeastern University, Shenyang, 110819, China.
| | - Sinan Liu
- School of Resources and Civil Engineering, Northeastern University, Shenyang, 110819, China.
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Shen L, Wang Y, Liu R, Yang Y, Liu Y, Xing B. Aging characteristics of degradable and non-biodegradable microplastics and their adsorption mechanism for sulfonamides. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 901:166452. [PMID: 37607636 DOI: 10.1016/j.scitotenv.2023.166452] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Revised: 08/07/2023] [Accepted: 08/18/2023] [Indexed: 08/24/2023]
Abstract
As emerging pollutants, microplastics (MPs) and antibiotics (ATs) became a research hotspot in recent years. To evaluate the carrier effect of degradable and non-biodegradable MPs in the aquatic environment, the adsorption behaviors of polyamide (PA) and polylactic acid (PLA) towards two sulfonamide antibiotics (SAs) were investigated. Both chemical and photo-aging were used to handle the virgin MPs. Compared with PA, PLA was aged more drastically, showing the obvious grooves, notches and folds. However, due to the higher temperature during chemical aging, the tiny KPLA (PLA aged by K2S2O8) particles were agglomerated and the specific surface area was reduced to nearly 95 %. For PA, the oxidation of chemical aging was stronger than photo-aging. After aging, the hydrophilicity and polarity of MPs increased. In the adsorption experiments, the adsorption capacity of PA towards SAs was 1.7 times higher than that of PLA. Aging process enabled the adsorption capacity of PLA increased 1.22-3.18 times. Overall, the adsorption capacity of sulfamethoxazole (SMX) by both MPs was superior to sulfamerazine (SMR). These results would help to understand the carrier effects and potential ecological risks of MPs towards co-existing contaminants.
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Affiliation(s)
- Lezu Shen
- School of Geography and Tourism, Shaanxi Normal University, Xi'an 710119, China
| | - Yanhua Wang
- School of Geography and Tourism, Shaanxi Normal University, Xi'an 710119, China.
| | - Ruihan Liu
- School of Geography and Tourism, Shaanxi Normal University, Xi'an 710119, China
| | - Yanni Yang
- School of Geography and Tourism, Shaanxi Normal University, Xi'an 710119, China
| | - Yingnan Liu
- School of Geography and Tourism, Shaanxi Normal University, Xi'an 710119, China
| | - Baoshan Xing
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, MA 01003, United States.
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Vrinda PK, Amal R, Abhirami N, Mini DA, Kumar VJR, Devipriya SP. Co-exposure of microplastics and heavy metals in the marine environment and remediation techniques: a comprehensive review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:114822-114843. [PMID: 37922080 DOI: 10.1007/s11356-023-30679-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 10/21/2023] [Indexed: 11/05/2023]
Abstract
Microplastics (MPs) and heavy metals are significant pollutants in the marine environment, necessitating effective remediation strategies to prevent their release into the sea through sewage and industrial effluent. This comprehensive review explores the current understanding of the co-exposure of MPs and heavy metal-enriched MPs, highlighting the need for effective remediation methods. Various mechanisms, including surface ion complexation, hydrogen bonding, and electrostatic forces, contribute to the adsorption of heavy metals onto MPs, with factors like surface area and environmental exposure duration playing crucial roles. Additionally, biofilm formation on MPs alters their chemical properties, influencing metal adsorption behaviors. Different thermodynamic models are used to explain the adsorption mechanisms of heavy metals on MPs. The adsorption process is influenced by various factors, including the morphological characteristics of MPs, their adsorption capacity, and environmental conditions. Additionally, the desorption of heavy metals from MPs has implications for their bioavailability and poses risks to marine organisms, emphasizing the importance of source reduction and remedial measures. Hybrid approaches that combine both conventional and modern technologies show promise for the efficient removal of MPs and heavy metals from marine environments. This review identifies critical gaps in existing research that should be addressed in future studies including standardized sampling methods to ensure accurate data, further investigation into the specific interactions between MPs and metals, and the development of hybrid technologies at an industrial scale. Overall, this review sheds light on the adsorption and desorption mechanisms of heavy metal-enriched MPs, underscoring the necessity of implementing effective remediation strategies.
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Affiliation(s)
- Punmoth Kalyadan Vrinda
- Department of Ocean Studies and Marine Biology, Pondicherry University, Port Blair, 744112, Andaman and Nicobar Islands, India
| | - Radhakrishnan Amal
- School of Environmental Studies, Cochin University of Science and Technology, Kochi, India, 682022
| | - Nandakumar Abhirami
- Department of Aquatic Environment Management, Central Institute of Fisheries Education, Versova, Mumbai, Maharashtra, 400061, India
| | - Divya Alex Mini
- Department of Aquatic Environment Management, Kerala University of Fisheries and Ocean Studies, Panangad, Kochi, 682508, Kerala, India
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Páez-Osuna F, Valencia-Castañeda G, Rodríguez Valenzuela O, Frías-Espericueta MG. Microplastics and heavy metals in shrimp Litopenaeus vannamei from the SAMARE lagoon, Gulf of California: Is it a case of combined MPs-Zn pollution in gills? ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 336:122479. [PMID: 37652226 DOI: 10.1016/j.envpol.2023.122479] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 08/28/2023] [Accepted: 08/29/2023] [Indexed: 09/02/2023]
Abstract
Microplastic (MPs) pollution studies in the coastal environment are increasing, as observed in the growing number of documents published yearly. However, studies regarding the combined effect of MPs and heavy metal (HMs) pollution are scarce, particularly in marine biota. Microplastics and HMs were investigated in the exoskeleton (EX), gills (GI), gastrointestinal tract (GT), and muscle (MU) of the shrimp Litopenaeus vannamei from the Santa María-La Reforma (SAMARE) lagoon, Mexico. Results showed that shrimp ingest mainly MPs of the fiber type (74.7%) and fragments (22.7%). The most frequent MP colors in the four tissues were transparent (61.4%-72.2%) and blue (3.2-36.4%) fibers. Microplastic abundance in the four tissues was 5.5 ± 0.5 MPs per individual. The predominant polymers found in most tissues were cotton and synthetic polyethylene-terephthalate (PET). Heavy metals exhibited wide variability depending on the tissue and metal; the highest Cu concentration in the GI was 138 ± 16 μg/g, while the highest Cd value was 0.40 ± 0.11 μg/g, Ni was 17.0 ± 8.3 μg/g, and Zn was 120 ± 18 μg/g in the GT. The relationship between MPs and HMs was significant and positive (p < 0.05) between MPs and Zn in the GI. This reveals a possible MPs-Zn interaction due to cotton and PET reactivity or is related to polymer manufacture. This study implies that an essential part of the world fisheries is a potential route for MPs and HMs. The problem is exacerbated due to the consumption of whole shrimp tissues consumed by humans. Considering Mexican shrimp consumption, and MPs in this study, the estimated intake was 594 MPs/capita/year. Future research requires MP monitoring in coastal lagoons that support wildlife and important fisheries and assess their effects combined with HMs.
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Affiliation(s)
- Federico Páez-Osuna
- Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Unidad Académica Mazatlán, Mexico; Miembro de El Colegio de Sinaloa, Sinaloa, Mexico.
| | - Gladys Valencia-Castañeda
- Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Unidad Académica Mazatlán, Mexico
| | - Osvaldo Rodríguez Valenzuela
- Facultad de Ciencias del Mar, Universidad Autónoma de Sinaloa, Paseo Claussen s/n, Mazatlán, 82000, Sinaloa, Mexico
| | - Martín G Frías-Espericueta
- Facultad de Ciencias del Mar, Universidad Autónoma de Sinaloa, Paseo Claussen s/n, Mazatlán, 82000, Sinaloa, Mexico
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Vo TP, Rintala J, Dai L, Oh WD, He C. The role of ubiquitous metal ions in degradation of microplastics in hot-compressed water. WATER RESEARCH 2023; 245:120672. [PMID: 37783176 DOI: 10.1016/j.watres.2023.120672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 08/02/2023] [Accepted: 09/25/2023] [Indexed: 10/04/2023]
Abstract
Hydrothermal processing (HTP) is an efficient thermochemical technology to achieve sound treatment and resource recovery of sewage sludge (SS) in hot-compressed subcritical water. However, microplastics (MPs) and heavy metals can be problematic impurities for high-quality nutrients recovery from SS. This study initiated hydrothermal degradation of representative MPs (i.e., polyethylene (PE), polyamide (PA), polypropylene (PP)) under varied temperatures (180-300 °C) to understand the effect of four ubiquitous metal ions (i.e., Fe3+, Al3+, Cu2+, Zn2+) on MPs degradation. It was found that weight loss of all MPs in metallic reaction media was almost four times of that in water media, indicating the catalytic role of metal ions in HTP. Especially, PA degradation at 300 °C was promoted by Fe3+ and Al3+ with remarkable weight loss higher than 95% and 92%, respectively, which was ca. 160 °C lower than that in pyrolysis. Nevertheless, PE and PP were more recalcitrant polymers to be degraded under identical condition. Although higher temperature thermal hydrolysis reaction induced severe chain scission of polymers to reinforce degradation of MPs, Fe3+ and Al3+ ions demonstrated the most remarkable catalytic depolymerization of MPs via enhanced free radical dissociation rather than hydrolysis. Pyrolysis gas chromatography-mass spectrometry (Py GC-MS) was further complementarily applied with GC-MS to reveal HTP of MPs to secondary MPs and nanoplastics. This fundamental study highlights the crucial role of ubiquitous metal ions in MPs degradation in hot-compressed water. HTP could be an energy-efficient technology for effective treatment of MPs in SS with abundant Fe3+ and Al3+, which will benefit sustainable recovery of cleaner nutrients in hydrochar and value-added chemicals or monomers from MPs.
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Affiliation(s)
- Tan-Phat Vo
- Materials Science and Environmental Engineering, Faculty of Engineering and Natural Sciences, Tampere University, Tampere, Finland
| | - Jukka Rintala
- Materials Science and Environmental Engineering, Faculty of Engineering and Natural Sciences, Tampere University, Tampere, Finland
| | - Leilei Dai
- Center for Biorefining and Department of Bioproducts and Biosystems Engineering, University of Minnesota, 1390 Eckles Ave., St. Paul, MN 55108, USA
| | - Wen-Da Oh
- School of Chemical Sciences, Universiti Sains Malaysia, 11800 Penang, Malaysia
| | - Chao He
- Materials Science and Environmental Engineering, Faculty of Engineering and Natural Sciences, Tampere University, Tampere, Finland.
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Soliman HAM, Salaah SM, Hamed M, Sayed AEDH. Toxicity of co-exposure of microplastics and lead in African catfish ( Clarias gariepinus). Front Vet Sci 2023; 10:1279382. [PMID: 37869502 PMCID: PMC10588188 DOI: 10.3389/fvets.2023.1279382] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 09/12/2023] [Indexed: 10/24/2023] Open
Abstract
Microplastics (MPs) are an emerging threat to freshwater ecosystems with several ecotoxicological ramifications for fish. Microplastics (MPs) can adsorb heavy metals on their surfaces and increase their availability to aquatic organisms. The combined impact of lead and microplastics on fish has only been studied seldom utilizing a variety of markers. The present study aimed to evaluate the hematological, biochemical, and inflammatory signals (cytokines), as well as antioxidant enzymes in African catfish (Clarias gariepinus) exposed to lead (Pb) and MPs individually and combined for 15 days (acute toxicity experiment). The fish were split into four groups, the first of which was the control group. The second group received exposure to 1 mg/L of lead nitrate [Pb(NO3)2]. The third group was given 100 mg/L of MPs. A solution containing 100 mg/L of MPs and 1 mg/L of lead nitrate [Pb(NO3)2] was administered to the fourth group (the combination group). According to the findings, when MPs and Pb were combined for 15 days, the red blood cells (RBCs), thrombocytes, and lymphocytes were significantly reduced in comparison to the control fish. When compared to the control fish, the fish exposed to MPs and Pb alone or together showed a significant rise in blood interleukin-1β (IL-1β) and interleukin-6 (IL-6) cytokines. Both MPs and Pb exposure in catfish resulted in significant changes in the plasma electrolytes. The fish treated with MPs and Pb individually or in combination showed significant reduction in superoxide dismutase (SOD) and total antioxidant capacity (TAC) levels compared to the control group. The fish exposed to the combined action of MPs and Pb showed a considerable modification in all biochemical markers. The difference in the mean concentration of Pb (mg/L) between the fish exposed to Pb alone and the fish subjected to Pb and MPs combination was not statistically significant. In conclusion, according to this investigation, exposure to Pb caused an insignificant increase in Pb accumulation when MPs were present. However, co-exposure may result in anemia, cellular harm, extremely high levels of oxidative stress, and an inflammatory reaction.
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Affiliation(s)
| | - Sally M. Salaah
- Fresh Water Division, National Institute of Oceanography and Fisheries, NIOF, Alexandria, Egypt
| | - Mohamed Hamed
- Department of Zoology, Faculty of Science, Al-Azhar University (Assiut Branch), Assiut, Egypt
| | - Alaa El-Din H. Sayed
- Department of Zoology, Faculty of Science, Assiut University, Assiut, Egypt
- Molecular Biology Research and Studies Institute, Assiut University, Assiut, Egypt
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Pan I, Umapathy S, Issac PK, Rahman MM, Guru A, Arockiaraj J. The bioaccessibility of adsorped heavy metals on biofilm-coated microplastics and their implication for the progression of neurodegenerative diseases. ENVIRONMENTAL MONITORING AND ASSESSMENT 2023; 195:1264. [PMID: 37782357 DOI: 10.1007/s10661-023-11890-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Accepted: 09/16/2023] [Indexed: 10/03/2023]
Abstract
Microplastic (MP) tiny fragments (< 5 mm) of conventional and specialized industrial polymers are persistent and ubiquitous in both aquatic and terrestrial ecosystem. Breathing, ingestion, consumption of food stuffs, potable water, and skin are possible routes of MP exposure that pose potential human health risk. Various microorganisms including bacteria, cyanobacteria, and microalgae rapidly colonized on MP surfaces which initiate biofilm formation. It gradually changed the MP surface chemistry and polymer properties that attract environmental metals. Physicochemical and environmental parameters like polymer type, dissolved organic matter (DOM), pH, salinity, ion concentrations, and microbial community compositions regulate metal adsorption on MP biofilm surface. A set of highly conserved proteins tightly regulates metal uptake, subcellular distribution, storage, and transport to maintain cellular homeostasis. Exposure of metal-MP biofilm can disrupt that cellular homeostasis to induce toxicities. Imbalances in metal concentrations therefore led to neuronal network dysfunction, ROS, mitochondrial damage in diseases like Alzheimer's disease (AD), Parkinson's disease (PD), and Prion disorder. This review focuses on the biofilm development on MP surfaces, factors controlling the growth of MP biofilm which triggered metal accumulation to induce neurotoxicological consequences in human body and stategies to reestablish the homeostasis. Thus, the present study gives a new approach on the health risks of heavy metals associated with MP biofilm in which biofilms trigger metal accumulation and MPs serve as a vector for those accumulated metals causing metal dysbiosis in human body.
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Affiliation(s)
- Ieshita Pan
- Institute of Biotechnology, Department of Medical Biotechnology and Integrative Physiology, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, 602105, Tamil Nadu, India.
| | - Suganiya Umapathy
- Institute of Biotechnology, Department of Medical Biotechnology and Integrative Physiology, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, 602105, Tamil Nadu, India
| | - Praveen Kumar Issac
- Institute of Biotechnology, Department of Medical Biotechnology and Integrative Physiology, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, 602105, Tamil Nadu, India
| | - Md Mostafizur Rahman
- Laboratory of Environmental Health and Ecotoxicology, Department of Environmental Sciences, Jahangirnagar University, Savar, Dhaka-1342, Bangladesh
- Department of Environmental Sciences, Jahangirnagar University, Savar, Dhaka-1342, Bangladesh
| | - Ajay Guru
- Department of Cariology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, Tamil Nadu, India.
| | - Jesu Arockiaraj
- Toxicology and Pharmacology Laboratory, Department of Biotechnology, Faculty of Science and Humanities, SRM Institute of Science and Technology, Kattankulathur 603203, Chengalpattu District, Tamil Nadu, India.
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Tan E, Ong MC, Mohd Zanuri NB. Polyethylene degradation and heavy metals leaching under realistic tropical marine climate. MARINE ENVIRONMENTAL RESEARCH 2023; 191:106113. [PMID: 37619477 DOI: 10.1016/j.marenvres.2023.106113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 07/17/2023] [Accepted: 07/21/2023] [Indexed: 08/26/2023]
Abstract
The study examines the influence of temperature and pH on the leaching of six heavy metals (HMs) species: aluminum (Al), zinc (Zn), chromium (Cr), copper (Cu), lead (Pb) and arsenic (As) from transparent polyethylene pellets into seawater. The idea is to understand the potential influence of intensifying global warming and ocean acidification towards microplastic toxicity in the ocean. HMs leaching was obvious by 24th hours, with most HMs concentration decreased in water by 120th and 240th hours except Al. Nevertheless, we report that temperature and pH do not influence the overall HMs leaching from PE pellets with statistical analysis showing no significance (p < 0.05) between temperature and pH toward HMs concentration. Instead, it is hypothesized that these two parameters may be crucial in promoting heavy metal adsorption onto PE pellets under tropical weathering. However, Field Emission Scanning Electron Microscope (FESEM) revealed that temperature and pH are influential in polymer aging and surficial breakdown where pellets exposed in warm, acidic waters showed the greatest extent of weathering. This study highlights that PE pellets exposed under tropical conditions may accelerate surficial degradation and possibly stimulate HMs adherence to the polymer as a pollution vector. Further consideration of metal behaviour in water and microbial activities is crucial to improve our understanding of microplastic toxicity under tropical weathering.
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Affiliation(s)
- Evonne Tan
- Centre for Marine and Coastal Studies (CEMACS), Universiti Sains Malaysia, 11800, Gelugor, Penang, Malaysia
| | - Meng Chuan Ong
- Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Kuala Nerus, 21300, Terengganu, Malaysia; Ocean Pollution and Ecotoxicology (OPEC) Research Group, Universiti Malaysia Terengganu, Kuala Nerus, 21300, Terengganu, Malaysia
| | - Norlaila Binti Mohd Zanuri
- Centre for Marine and Coastal Studies (CEMACS), Universiti Sains Malaysia, 11800, Gelugor, Penang, Malaysia.
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Bostan N, Ilyas N, Akhtar N, Mehmood S, Saman RU, Sayyed RZ, Shatid AA, Alfaifi MY, Elbehairi SEI, Pandiaraj S. Toxicity assessment of microplastic (MPs); a threat to the ecosystem. ENVIRONMENTAL RESEARCH 2023; 234:116523. [PMID: 37422115 DOI: 10.1016/j.envres.2023.116523] [Citation(s) in RCA: 25] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 06/14/2023] [Accepted: 06/27/2023] [Indexed: 07/10/2023]
Abstract
Plastic is now considered part and parcel of daily life due to its extensive usage. Microplastic (MP) pollution is becoming a growing worry and has been ranked as the second most critical scientific problem in the realm of ecology and the environment. Microplastics are smaller in size than the plastic and are more harmful to biotic and as well as abiotic environments. The toxicity of microplastic depends upon its shape and size and increases with an increase in its adsorption capacity and their toxicity. The reason behind their harmful nature is their small size and their large surface area-to-volume ratio. Microplastic can get inside fruits, vegetables, seeds, roots, culms, and leaves. Hence microplastic enters into the food chain. There are different entry points for microplastic to enter into the food chain. Such sources can include polluted food, beverages, spices, plastic toys, and household (packing, cooking, etc.). The concentration of microplastic in terrestrial environments is increasing day by day. Microplastic causes the destruction of soil structure; destroys soil microbiota, cause depletion of nutrients in the soil, and their absorption by plants decreases plant growth. Apart from other environmental problems caused by microplastic, human health is also badly affected by microplastic pollution present in the terrestrial environment. The presence of microplastics in the human body has been confirmed. Microplastic enters into the body of humans in different possible ways. According to their way of entering the body, microplastics cause different diseases in humans. MPs also cause negative effects on the human endocrine system. At the ecosystem level, the impacts of microplastic are interconnected and can disrupt ecological processes. Although recently different papers have been published on several aspects of the microplastic present in the terrestrial environment but there is no complete overview that focus on the interrelationship of MPs in plants, and soil and their effect on higher animals like a human. This review provides a completely detailed overview of existing knowledge about sources, occurrences, transport, and effects of microplastic on the food chain and soil quality and their ecotoxicological effects on plants and humans.
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Affiliation(s)
- Nageen Bostan
- Department of Botany, PMAS Arid Agriculture University Rawalpindi, 46300, Pakistan.
| | - Noshin Ilyas
- Department of Botany, PMAS Arid Agriculture University Rawalpindi, 46300, Pakistan.
| | - Nosheen Akhtar
- Department of Botany, PMAS Arid Agriculture University Rawalpindi, 46300, Pakistan.
| | - Sabiha Mehmood
- Department of Botany, PMAS Arid Agriculture University Rawalpindi, 46300, Pakistan.
| | - Rafia Urooj Saman
- Department of Botany University of Agriculture Faisalabad, Pakistan.
| | - R Z Sayyed
- Faculty of Health and Life Sciences, INTI International University, 71800, Nilai, Negeri Sembilan, Malaysia.
| | - Ali A Shatid
- Biology Department, Faculty of Science, King Khalid University, Abha, 9004, Saudi Arabia.
| | - Mohammad Y Alfaifi
- Biology Department, Faculty of Science, King Khalid University, Abha, 9004, Saudi Arabia.
| | | | - Saravanan Pandiaraj
- Department of Self-Development Skills, King Saud University, Riyadh, 11451, Saudi Arabia.
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Wang Y, Qian X, Chen J, Yuan X, Zhu N, Chen Y, Fan T, Li M, Toland H, Feng Z. Co-exposure of polystyrene microplastics influence cadmium trophic transfer along the "lettuce-snail" food chain: Focus on leaf age and the chemical fractionations of Cd in lettuce. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 892:164799. [PMID: 37302614 DOI: 10.1016/j.scitotenv.2023.164799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 05/25/2023] [Accepted: 06/08/2023] [Indexed: 06/13/2023]
Abstract
Cadmium (Cd) and polystyrene microplastics (PS) co-contamination always occurs in environment; however, the trophic transfer of Cd and PS is still poorly understood. A hydroponic experiment was conducted to investigate the behavior of Cd in lettuce, together with the root or foliar exposure of different sized PS. Accumulation and chemical form distributions of Cd in leaves were distinguished into young and mature leaves. Subsequently, a 14-day snail feeding experiment was performed. Data showed that Cd accumulation in roots, rather than in leaves, are significantly affected by PS coexistence. However, mature leaves had a higher Cd content than young leaves under the root exposure of PS, while a reverse effect was observed in the foliar exposure. There existed a positive correlation between the food-chain transfer associated Cd (CdFi+Fii+Fiii) in mature leaves and Cd content in snail soft tissue (r = 0.705, p < 0.001), but not in young leaves. Though no bio-amplification of Cd in food chain was observed, an increase of Cd transfer factor (TF) from lettuce to snail was noted in the root exposure of 5 μm PS and the foliar exposure of 0.2 μm PS. Moreover, we observed a highest increase rate of 36.8 % in TF values from lettuce to snail viscera, and a chronic inflammatory response in snail stomach tissue. Therefore, more attentions should be paid to study the ecological risks of heavy metals and microplastics co-contamination in environment.
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Affiliation(s)
- Yimin Wang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing 210098, PR China
| | - Xinyue Qian
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing 210098, PR China
| | - Juan Chen
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing 210098, PR China
| | - Xuyin Yuan
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing 210098, PR China
| | - Ningyuan Zhu
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing 210098, PR China.
| | - Yudong Chen
- State Environmental Protection Key Laboratory of Soil Environmental Management and Pollution Control, Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment of China, Nanjing 210042, PR China
| | - Tingting Fan
- State Environmental Protection Key Laboratory of Soil Environmental Management and Pollution Control, Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment of China, Nanjing 210042, PR China
| | - Ming Li
- State Environmental Protection Key Laboratory of Soil Environmental Management and Pollution Control, Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment of China, Nanjing 210042, PR China
| | - Harry Toland
- Geography & Earth Sciences, Aberystwyth University, Llandinam Building, Penglais Campus, Aberystwyth, Wales SY23 3DB, United Kingdom
| | - Zhiwang Feng
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing 210098, PR China
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Nithin A, Sundaramanickam A, Surya P, Kumar TTA. Chromium (IV) transfer to Amusium pleuronectes by LDPE microplastics: An experimental study. JOURNAL OF HAZARDOUS MATERIALS 2023; 458:131869. [PMID: 37336108 DOI: 10.1016/j.jhazmat.2023.131869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Revised: 06/13/2023] [Accepted: 06/14/2023] [Indexed: 06/21/2023]
Abstract
An experiment was carried out to investigate the potential of virgin LDPE microplastics to transfer heavy metals. Desired shapes (fibres, fragments, and films) and sizes (< 5 mm) of virgin LDPE microplastics were immersed in a known concentration (30 µg/l) of chromium (IV). These Cr-coated microplastics were introduced into a culture tank containing edible scallops (Amusium pleuronectes). After the completion of the experiment (5 days), the sediments in the culture tank and edible tissues of A. pleuronectes were tested for the presence of Cr. In the sediments, a maximum concentration of 1.934 µg/g of Cr was accumulated at a rate of R2 = 0.979, while in the tissues, the maximum accumulation concentration was 0.733 µg/g of Cr at a rate of R2 = 0.807. Energy Dispersive X-ray Spectroscopy analysis also confirmed the presence of Cr (2.61 ± 0.44 mass % and 1.80 ± 0.30 atom%) in the tissues of A. pleuronectes, which was absent in the control tissues. The study showed that when exposed to contaminants such as heavy metals, LDPE microplastics can adhere and transfer them to biotic tissues. LDPE showed the potential to transfer adhered contaminants; however, the effects caused by these transferred contaminants on biota must be studied further. Risk assessment study showed that potential ecological risk of Cr is < 40 indicating low risk however, the combined effect of Cr and LDPE can compound its toxicity which needs to be studied further.
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Affiliation(s)
- Ajith Nithin
- Centre of Advanced Study in Marine Biology, Annamalai University Parangipettai, Tamil Nadu, India.
| | - Arumugam Sundaramanickam
- Centre of Advanced Study in Marine Biology, Annamalai University Parangipettai, Tamil Nadu, India.
| | - Parthasarathy Surya
- Centre of Advanced Study in Marine Biology, Annamalai University Parangipettai, Tamil Nadu, India
| | - T T Ajith Kumar
- ICAR - National Bureau of Fish Genetic Resources, Lucknow 226002, Uttar Pradesh, India.
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Vaisakh PS, Adarsh UK, Amrutha K, Warrier AK, Kartha VB, Unnikrishnan VK. Integrated LIBS-Raman spectroscopy: A comprehensive approach to monitor microplastics and heavy metal contamination in water resources. ENVIRONMENTAL RESEARCH 2023; 231:116198. [PMID: 37209978 DOI: 10.1016/j.envres.2023.116198] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 04/29/2023] [Accepted: 05/17/2023] [Indexed: 05/22/2023]
Abstract
The increased use of plastic products and global industrial conditions have contaminated natural resources, especially water, with pollutants such as microplastics and trace elements, including heavy metals. Hence, continuous monitoring of water samples is an urgent requirement. However, the existing microplastic-heavy metal monitoring methodologies require discrete and sophisticated sampling approaches. The article proposes a multi-modal LIBS-Raman spectroscopy system for detecting microplastics and heavy metals from water resources with unified sampling and pre-processing approaches. The accomplishment of the detection process is using a single instrument by exploiting the trace element affinity of microplastics, which operates in an integrated methodology to monitor water samples for microplastic-heavy metal contamination. The polypropylene (PP), polyethylene (PE), and polyethylene terephthalate (PET) plastic types dominate the identified microplastics from different sampling spots: in an estuary formed by the Swarna River near Kalmadi (Malpe) in Udupi district, and from River Netravathi in Mangalore, Dakshina Kannada District, Karnataka, India. The detected trace elements from microplastic surfaces include heavy metals such as Al, Zn, Cu, Ni, Mn, and Cr and other elements counting Na, Mg, Ca, and Li. The system could record concentrations of trace elements down to 10 ppm, and comparing results with the conventional technique of Inductively Coupled Plasma-Optical Emission Spectroscopy (ICP-OES) confirms the ability of the system to detect trace elements from microplastic surfaces. In addition, comparing results with direct LIBS analysis of water from the sampling site shows better results in microplastic-based trace element detection.
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Affiliation(s)
- P S Vaisakh
- Department of Atomic and Molecular Physics, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India
| | - U K Adarsh
- Department of Atomic and Molecular Physics, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India
| | - K Amrutha
- Department of Civil Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, 576104, India
| | - Anish Kumar Warrier
- Department of Civil Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, 576104, India; Centre for Climate Studies, Manipal Academy of Higher Education, Manipal, 576104, India
| | - V B Kartha
- Department of Atomic and Molecular Physics, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India
| | - V K Unnikrishnan
- Department of Atomic and Molecular Physics, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India.
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Han Z, Osman R, Liu Y, Wei Z, Wang L, Xu M. Analyzing the impacts of cadmium alone and in co-existence with polypropylene microplastics on wheat growth. FRONTIERS IN PLANT SCIENCE 2023; 14:1240472. [PMID: 37636097 PMCID: PMC10449543 DOI: 10.3389/fpls.2023.1240472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 07/20/2023] [Indexed: 08/29/2023]
Abstract
Heavy metals typically coexist with microplastics (MPs) in terrestrial ecosystems. Yet, little is known about how the co-existence of heavy metals and MPs affect crops. Therefore, this study aimed to evaluate the impact of cadmium (Cd; 40 mg/L) alone and its co-existence with polypropylene (PP)-MPs (50 and 100 µm) on seed germination, root and shoot growth, seedling dry weight (DW), and antioxidant enzyme activities of wheat. The study demonstrated that the germination rate of wheat did not vary significantly across treatment groups. Yet, the inhibitory impact on wheat seed germination was strengthened under the co-existence of Cd and PP-MPs, as the effect of a single treatment on seed germination was non-significant. The germination index and mean germination time of wheat seeds were not affected by single or combined toxicity of Cd and PP-MPs. In contrast, Cd and PP-MPs showed synergistic effects on germination energy. Wheat root and shoot length were impeded by Cd alone and in combination with PP-MPs treatments. The DW of wheat seedlings showed significant change across treatment groups until the third day, but on the seventh day, marginal differences were observed. For example, on third day, the DW of the Cd treatment group increased by 6.9% compared to CK, whereas the DW of the 100 µm PP-MPs+Cd treatment group decreased by 8.4% compared to CK. The co-occurrence of Cd and PP-MPs indicated that 50 μm PP-MPs+Cd had an antagonistic impact on wheat seedling growth, whereas 100 μm PP-MPs+Cd had a synergistic impact due to the larger size of PP-MPs. The antioxidant enzyme system of wheat seeds and seedlings increased under single Cd pollution, while the activities of superoxide dismutase, catalase, and peroxidase were decreased under combined pollution. Our study found that Cd adversely affects wheat germination and growth, while the co-existence of Cd and PP-MPs have antagonistic and synergistic effects depending on the size of the PP-MPs.
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Affiliation(s)
- Zhiwei Han
- Miami College, Henan University, Kaifeng, China
| | - Raheel Osman
- College of Geography and Environmental Science, Henan University, Kaifeng, China
- Henan Key Laboratory of Earth System Observation and Modeling, Henan University, Kaifeng, China
| | - Yi Liu
- Miami College, Henan University, Kaifeng, China
| | | | - Lin Wang
- Miami College, Henan University, Kaifeng, China
- College of Geography and Environmental Science, Henan University, Kaifeng, China
- Henan Key Laboratory of Earth System Observation and Modeling, Henan University, Kaifeng, China
| | - Ming Xu
- College of Geography and Environmental Science, Henan University, Kaifeng, China
- Henan Key Laboratory of Earth System Observation and Modeling, Henan University, Kaifeng, China
- BNU-HKUST Laboratory for Green Innovation, Beijing Normal University, Zhuhai, China
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47
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Ma JW, Wu YQ, Xu CL, Luo ZX, Yu RL, Hu GR, Yan Y. Inhibitory effect of polyethylene microplastics on roxarsone degradation in soils. JOURNAL OF HAZARDOUS MATERIALS 2023; 454:131483. [PMID: 37116328 DOI: 10.1016/j.jhazmat.2023.131483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Revised: 04/20/2023] [Accepted: 04/22/2023] [Indexed: 05/19/2023]
Abstract
Roxarsone (3-nitro-4-hydroxyphenylarsonic acid, Rox(V)), an extensively used organoarsenical feed additive, enters soils through the application of Rox(V)-containing manure and further degrades to highly toxic arsenicals. Microplastics, as emerging contaminants, are also frequently detected in soils. However, the effects of microplastics on soil Rox(V) degradation are unknown. A microcosm experiment was conducted to investigate soil Rox(V) degradation responses to polyethylene (PE) microplastics and the underlying mechanisms. PE microplastics inhibited soil Rox(V) degradation, with the main products being 3-amino-4-hydroxyphenylarsonic acid [3-AHPAA(V)], N-acetyl-4-hydroxy-m-arsanilic acid [N-AHPAA(V)], arsenate [As(V)], and arsenite [As(III)]. This inhibition was likely driven by the decline in soil pH by PE microplastic addition, which may directly enhance Rox(V) sorption in soils. The decreased soil pH further suppressed the nfnB gene related to nitroreduction of Rox(V) to 3-AHPAA(V) and nhoA gene associated with acetylation of 3-AHPAA(V) to N-AHPAA(V), accompanied by a decrease in the relative abundance of possible Rox(V)-degrading bacteria (e.g., Pseudomonadales), although the diversity, composition, network complexity, and assembly of soil bacterial communities were largely influenced by Rox(V) rather than PE microplastics. Our study emphasizes microplastic-induced inhibition of Rox(V) degradation in soils and the need to consider the role of microplastics in better risk assessment and remediation of Rox(V)-contaminated soils.
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Affiliation(s)
- Jie-Wen Ma
- Department of Environmental Science and Engineering, Huaqiao University, Xiamen 361021, China
| | - Ya-Qing Wu
- Instrumental Analysis Center of Huaqiao University, Huaqiao University, Xiamen 361021, China
| | - Chen-Lu Xu
- Department of Environmental Science and Engineering, Huaqiao University, Xiamen 361021, China
| | - Zhuan-Xi Luo
- Department of Environmental Science and Engineering, Huaqiao University, Xiamen 361021, China
| | - Rui-Lian Yu
- Department of Environmental Science and Engineering, Huaqiao University, Xiamen 361021, China
| | - Gong-Ren Hu
- Department of Environmental Science and Engineering, Huaqiao University, Xiamen 361021, China
| | - Yu Yan
- Department of Environmental Science and Engineering, Huaqiao University, Xiamen 361021, China.
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48
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Zhu G, Yue K, Ni X, Yuan C, Wu F. The types of microplastics, heavy metals, and adsorption environments control the microplastic adsorption capacity of heavy metals. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:80807-80816. [PMID: 37306875 DOI: 10.1007/s11356-023-28131-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Accepted: 06/01/2023] [Indexed: 06/13/2023]
Abstract
Anthropogenic development has released large amounts of microplastics (MPs), which are carriers of migratory heavy metals, into the environment, and heavy metal adsorption by MPs may have strong combined toxic effects on ecosystems. However, until now, a comprehensive understanding of the factors influencing these adsorption capacities of MPs has been lacking. Thus, we used 4984 experimental data points to systematically assess the factors influencing the adsorption strength of 8 types of MPs on 13 types of heavy metals. We found that (1) the types of MPs, heavy metals, and adsorption environments significantly impacted the heavy metal adsorption capacities of MPs; (2) polyvinyl alcohol (PVA) showed a higher adsorption capacity for lead (Pb) and cadmium (Cd) than did other MPs, by 2810.62 mg/kg and 2732.84 mg/kg, respectively; (3) the adsorption capacities of MPs for heavy metal were regulated by multiple variables, with heavy metal concentration, MP quality, solution amount, adsorption time, and pH being the most important; and (4) MPs had a higher adsorption capacity in aquatic environments (except for seawater) than which in soil environments. Overall, our study clearly showed that the types of heavy metals, adsorption environments, and MPs influenced the heavy metal adsorption capacities of MPs and may exacerbate their combined environmental toxicity, which would help better characterize the severity of MP pollution.
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Affiliation(s)
- Guiqing Zhu
- Key Laboratory for Humid Subtropical Eco-Geographical Processes of the Ministry of Education, School of Geographical Sciences, Fujian Normal University, Fuzhou, 350117, China
| | - Kai Yue
- Key Laboratory for Humid Subtropical Eco-Geographical Processes of the Ministry of Education, School of Geographical Sciences, Fujian Normal University, Fuzhou, 350117, China
- Fujian Sanming Forest Ecosystem National Observation and Research Station, Sanming, 365002, China
| | - Xiangyin Ni
- Key Laboratory for Humid Subtropical Eco-Geographical Processes of the Ministry of Education, School of Geographical Sciences, Fujian Normal University, Fuzhou, 350117, China
- Fujian Sanming Forest Ecosystem National Observation and Research Station, Sanming, 365002, China
| | - Chaoxiang Yuan
- Key Laboratory for Humid Subtropical Eco-Geographical Processes of the Ministry of Education, School of Geographical Sciences, Fujian Normal University, Fuzhou, 350117, China
| | - Fuzhong Wu
- Key Laboratory for Humid Subtropical Eco-Geographical Processes of the Ministry of Education, School of Geographical Sciences, Fujian Normal University, Fuzhou, 350117, China.
- Fujian Sanming Forest Ecosystem National Observation and Research Station, Sanming, 365002, China.
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49
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Meng J, Li W, Diao C, Li Z, Zhao J, Haider G, Zhang H, Xu J, Hu M, Shan S, Chen H. Microplastics drive microbial assembly, their interactions, and metagenomic functions in two soils with distinct pH and heavy metal availability. JOURNAL OF HAZARDOUS MATERIALS 2023; 458:131973. [PMID: 37406526 DOI: 10.1016/j.jhazmat.2023.131973] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 06/01/2023] [Accepted: 06/28/2023] [Indexed: 07/07/2023]
Abstract
Microplastics (MPs) have emerged as widely existing global environmental concerns in terrestrial ecosystems. However, the mechanisms that how MPs are affecting soil microbes and their metagenomic functioning is currently uncertain. Herein, we investigated the response mechanisms of bacterial and fungal communities as well as the metagenomic functions to the addition of MPs in two soils with distinct pH and heavy metals. In this study, the acidic soil (Xintong) and the neutral soil (Huanshan) contaminated by heavy metals were incubated with Polyvinyl Chloride (PVC) MPs at ratios of 2.5% and 5% on 60 and 120 days. We aimed to evaluate the responding, assembly, and interactions of the metagenomic taxonomy and function. Results showed that only in the acidic soil, PVC MPs significantly increased soil pH and decreased CaCl2-extractable heavy metals, and also reduced bacterial alpha diversity and interaction networks. The relative proportions of Proteobacteria and Bacteroidota in bacteria, and Mortierellomycota in fungi, were increased, but Chloroflexi and Acidobacteriota in bacteria, Ascomycota and Basidiomycota in fungi, were significantly decreased by PVC MPs. Metagenomic functions related to C cycling were repressed but the nutrient cycles were enriched with PVC MPs. In conclusion, our study suggests that the addition of PVC MPs could shift soil microbial community and metagenomic functioning, as well as increasing soil pH and reduced heavy metal availability.
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Affiliation(s)
- Jun Meng
- Key Laboratory of Recycling and Eco-Treatment of Waste Biomass of Zhejiang Province, School of Environment and Natural Resources, Zhejiang University of Science and Technology, Hangzhou 310023, China
| | - Wenjin Li
- Key Laboratory of Recycling and Eco-Treatment of Waste Biomass of Zhejiang Province, School of Environment and Natural Resources, Zhejiang University of Science and Technology, Hangzhou 310023, China
| | - Chengmei Diao
- Key Laboratory of Recycling and Eco-Treatment of Waste Biomass of Zhejiang Province, School of Environment and Natural Resources, Zhejiang University of Science and Technology, Hangzhou 310023, China
| | - Zhangtao Li
- Key Laboratory of Recycling and Eco-Treatment of Waste Biomass of Zhejiang Province, School of Environment and Natural Resources, Zhejiang University of Science and Technology, Hangzhou 310023, China
| | - Jiayi Zhao
- State Key Laboratory of Biocontrol, School of Ecology, Shenzhen Campus of Sun Yat-sen University, Shenzhen 518107, China.
| | - Ghulam Haider
- Department of Plant Biotechnology, Atta-ur-Rahman School of Applied Biosciences, National University of Sciences and Technology, Islamabad, Pakistan
| | - Haibo Zhang
- Zhejiang Province Key Laboratory of Soil Contamination Bioremediation, School of Environment and Resources, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China
| | - Jun Xu
- Agricultural Technology Extension Center of Fuyang District, Hangzhou, Zhejiang 311400, China
| | - Minjun Hu
- Agricultural Technology Extension Center of Fuyang District, Hangzhou, Zhejiang 311400, China
| | - Shengdao Shan
- Key Laboratory of Recycling and Eco-Treatment of Waste Biomass of Zhejiang Province, School of Environment and Natural Resources, Zhejiang University of Science and Technology, Hangzhou 310023, China
| | - Huaihai Chen
- State Key Laboratory of Biocontrol, School of Ecology, Shenzhen Campus of Sun Yat-sen University, Shenzhen 518107, China.
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50
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Binda G, Carnati S, Spanu D, Bellasi A, Hurley R, Bettinetti R, Monticelli D, Pozzi A, Nizzetto L. Selection of the optimal extraction protocol to investigate the interaction between trace elements and environmental plastic. JOURNAL OF HAZARDOUS MATERIALS 2023; 452:131330. [PMID: 37004438 DOI: 10.1016/j.jhazmat.2023.131330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 03/09/2023] [Accepted: 03/29/2023] [Indexed: 06/19/2023]
Abstract
The interaction between environmental plastic and trace elements is an issue of concern. Understanding their interaction mechanisms is key to evaluate the potential threats for the environment. To this regard, consolidating confidence in extraction protocols can help in understanding the amount of different species present on plastic surface, as well as the potential mobility of trace elements present inside the plastic matrix (e.g., additives). Here we tested the efficacy of different reagents to mimic the elemental phases bonded to meso- and microplastic in the environment, in relation to the grade of ageing and the polymer composition. Results showed that a relatively high portion of trace elements is bonded in a weak phase and that other phases abundant in other matrices (e.g., oxides and bonded to organic matter) are only present to a limited degree in the plastic samples. The comparison of different sample types highlighted the important role of plastic ageing in governing interactions with trace elements, while the polymer composition has a limited influence on this process. Finally, the future steps toward a tailored extraction scheme for environmental plastic are proposed.
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Affiliation(s)
- Gilberto Binda
- Norwegian Institute for Water Research (NIVA), Økernveien 94, 0579 Oslo, Norway.
| | - Stefano Carnati
- Department of Science and High Technology, University of Insubria, Via Valleggio 11, 22100 Como, Italy
| | - Davide Spanu
- Department of Science and High Technology, University of Insubria, Via Valleggio 11, 22100 Como, Italy
| | - Arianna Bellasi
- Department of Science and High Technology, University of Insubria, Via Valleggio 11, 22100 Como, Italy
| | - Rachel Hurley
- Norwegian Institute for Water Research (NIVA), Økernveien 94, 0579 Oslo, Norway
| | - Roberta Bettinetti
- Department of Human and Innovation for the Territory, University of Insubria, Via Valleggio 11, 22100 Como, Italy
| | - Damiano Monticelli
- Department of Science and High Technology, University of Insubria, Via Valleggio 11, 22100 Como, Italy
| | - Andrea Pozzi
- Department of Science and High Technology, University of Insubria, Via Valleggio 11, 22100 Como, Italy
| | - Luca Nizzetto
- Norwegian Institute for Water Research (NIVA), Økernveien 94, 0579 Oslo, Norway; RECETOX, Masarik University, Kamenice 753/5, 625 00 Brno, Czech Republic
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