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Li J, Liu J, Wang X, Zhang T, Wang D, Shan E, Teng J, Zhao J, Wang Q. Vertical transfer of microplastics in nearshore water by cultured filter-feeding oysters. JOURNAL OF HAZARDOUS MATERIALS 2024; 475:134769. [PMID: 38870849 DOI: 10.1016/j.jhazmat.2024.134769] [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: 02/25/2024] [Revised: 05/24/2024] [Accepted: 05/29/2024] [Indexed: 06/15/2024]
Abstract
Microplastics (MPs) are widely distributed in the sea, but the vertical transfer of MPs by marine organisms in coastal area is still poorly understood. In this study, we used laser direct infrared (LDIR) spectroscopy to determine the number and characteristics of MPs deposited by cultured oyster Crassostrea gigas and further compared the differences between MPs of natural deposit and biodeposit in field environments. The amounts of MPs found in the biodeposit of cultured oysters were 3.54 times greater than that in the natural deposition. The polymer types of biodeposit MPs also differed from those of natural deposition. It was estimated that a single oyster can deposit 15.88 MPs per day, which is a figure much higher than the initial results, and hotspots of MPs deposition may be formed within the oyster aquaculture area. We used generalized linear mixed model (GLMM) to further infer the sources of MPs in sediments and found that distance to shore, cultured zone and urban center were important predictors of MPs abundance in sediments of aquaculture area. The above results suggest that cultured bivalves have an important capacity for MPs biodeposition and will further change the vertical distribution pattern of MPs in coastal environments.
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Affiliation(s)
- Jiasen Li
- Research and Development Center for Efficient Utilization of Coastal Bioresources, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, PR China; Muping Coastal Environment Research Station, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Jialin Liu
- Research and Development Center for Efficient Utilization of Coastal Bioresources, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, PR China
| | - Xiaodan Wang
- Research and Development Center for Efficient Utilization of Coastal Bioresources, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, PR China; Muping Coastal Environment Research Station, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Tianyu Zhang
- Research and Development Center for Efficient Utilization of Coastal Bioresources, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, PR China; Muping Coastal Environment Research Station, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Dongyu Wang
- Research and Development Center for Efficient Utilization of Coastal Bioresources, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, PR China; Muping Coastal Environment Research Station, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Encui Shan
- Research and Development Center for Efficient Utilization of Coastal Bioresources, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, PR China; Muping Coastal Environment Research Station, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Jia Teng
- Research and Development Center for Efficient Utilization of Coastal Bioresources, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, PR China; Muping Coastal Environment Research Station, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Jianmin Zhao
- Research and Development Center for Efficient Utilization of Coastal Bioresources, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, PR China; Muping Coastal Environment Research Station, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, PR China
| | - Qing Wang
- Research and Development Center for Efficient Utilization of Coastal Bioresources, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, PR China; Muping Coastal Environment Research Station, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, PR China.
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2
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Choudhury TR, Riad S, Uddin FJ, Maksud MA, Alam MA, Chowdhury AMS, Mubin AN, Islam ARMT, Malafaia G. Microplastics in multi-environmental compartments: Research advances, media, and global management scenarios. JOURNAL OF CONTAMINANT HYDROLOGY 2024; 265:104379. [PMID: 38851130 DOI: 10.1016/j.jconhyd.2024.104379] [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: 05/06/2024] [Accepted: 06/02/2024] [Indexed: 06/10/2024]
Abstract
During the past decades, microplastics (MPs) have become an emerging concern due to their persistence and potential environmental threat. MP pollution has become so drastic that it has been found in the human food chain, breast milk, polar regions, and even the Himalayan basin, lake, etc. Inflammation, pulmonary hypertension, vascular occlusions, increased coagulability and blood cell cytotoxicity, disruption of immune function, neurotoxicity, and neurodegenerative diseases can all be brought on by severe microplastic exposure. Although many MPs studies have been performed on single environmental compartments, MPs in multi-environmental compartments have yet to be explored fully. This review aims to summarize the muti-environmental media, detection tools, and global management scenarios of MPs. The study revealed that MPs could significantly alter C flow through the soil-plant system, the structure and metabolic status of the microbial community, soil pH value, biomass of plant shoots and roots, chlorophyll, leaf C and N contents, and root N contents. This review reveals that MPs may negatively affect many C-dependent soil functions. Different methods have been developed to detect the MPs from these various environmental sources, including microscopic observation, density separation, Raman, and FT-IR analysis. Several articles have focused on MPs in individual environmental sources with a developed evaluation technique. This review revealed the extensive impacts of MPs on soil-plant systems, microbial communities, and soil functions, especially on water, suggesting possible disturbances to vital ecological processes. Furthermore, the broad range of detection methods explored emphasizes the significance of reliable analytical techniques in precisely evaluating levels of MP contamination in various environmental media. This paper critically discusses MPs' sources, occurrences, and global management scenarios in all possible environmental media and ecological health impacts. Future research opportunities and required sustainable strategies have also been suggested from Bangladesh and international perspectives based on challenges faced due to MP's pollution.
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Affiliation(s)
- Tasrina Rabia Choudhury
- Analytical Chemistry Laboratory, Chemistry Division, Atomic Energy Center Dhaka, Bangladesh Atomic Energy Commission, Dhaka 1000, Bangladesh.
| | - Syed Riad
- Department of Applied Chemistry and Chemical Engineering, University of Dhaka, Dhaka, Bangladesh
| | - Foyez Jalal Uddin
- Department of Applied Chemistry and Chemical Engineering, University of Dhaka, Dhaka, Bangladesh
| | - M A Maksud
- Analytical Chemistry Laboratory, Chemistry Division, Atomic Energy Center Dhaka, Bangladesh Atomic Energy Commission, Dhaka 1000, Bangladesh
| | - M Abbas Alam
- Department of Applied Chemistry and Chemical Engineering, University of Dhaka, Dhaka, Bangladesh; Bangladesh Accreditation Board, Dhaka 1000, Bangladesh
| | | | - Al-Nure Mubin
- Department of Disaster Management, Begum Rokeya University, Rangpur 5400, Bangladesh
| | - Abu Reza Md Towfiqul Islam
- Department of Disaster Management, Begum Rokeya University, Rangpur 5400, Bangladesh; Department of Development Studies, Daffodil International University, Dhaka 1216, Bangladesh.
| | - Guilherme Malafaia
- Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Ecology, Conservation, and Biodiversity, Federal University of Uberlândia, Uberlândia, MG, Brazil; Post-Graduation Program in Biotechnology and Biodiversity, Federal University of Goiás, Goiânia, GO, Brazil.
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3
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Wang D, Xiong F, Wu L, Liu Z, Xu K, Huang J, Liu J, Ding Q, Zhang J, Pu Y, Sun R. A progress update on the biological effects of biodegradable microplastics on soil and ocean environment: A perfect substitute or new threat? ENVIRONMENTAL RESEARCH 2024; 252:118960. [PMID: 38636648 DOI: 10.1016/j.envres.2024.118960] [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: 04/14/2024] [Accepted: 04/15/2024] [Indexed: 04/20/2024]
Abstract
Conventional plastics are inherently difficult to degrade, causing serious plastic pollution. With the development of society, biodegradable plastics (BPs) are considered as an alternative to traditional plastics. However, current research indicated that BPs do not undergo complete degradation in natural environments. Instead, they may convert into biodegradable microplastics (BMPs) at an accelerated rate, thereby posing a significant threat to environment. In this paper, the definition, application, distribution, degradation behaviors, bioaccumulation and biomagnification of BPs were reviewed. And the impacts of BMPs on soil and marine ecosystems, in terms of physicochemical property, nutrient cycling, microorganisms, plants and animals were comprehensively summarized. The effects of combined exposure of BMPs with other pollutants, and the mechanism of ecotoxicity induced by BMPs were also addressed. It was found that BMPs reduced pH, increased DOC content, and disrupted the nitrification of nitrogen cycle in soil ecosystem. The shoot dry weight, pod number and root growth of soil plants, and reproduction and body length of soil animals were inhibited by BMPs. Furthermore, the growth of marine plants, and locomotion, body length and survival of marine animals were suppressed by BMPs. Additionally, the ecotoxicity of combined exposure of BMPs with other pollutants has not been uniformly concluded. Exposure to BMPs induced several types of toxicity, including neurotoxicity, gastrointestinal toxicity, reproductive toxicity, immunotoxicity and genotoxicity. The future calls for heightened attention towards the regulation of the degradation of BPs in the environment, and pursuit of interventions aimed at mitigating their ecotoxicity and potential health risks to human.
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Affiliation(s)
- Daqin Wang
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, Department of Labor and Environmental Health, School of Public Health, Southeast University, Nanjing, 210009, China
| | - Fei Xiong
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, Department of Labor and Environmental Health, School of Public Health, Southeast University, Nanjing, 210009, China
| | - Lingjie Wu
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, Department of Labor and Environmental Health, School of Public Health, Southeast University, Nanjing, 210009, China
| | - Zhihui Liu
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, Department of Labor and Environmental Health, School of Public Health, Southeast University, Nanjing, 210009, China
| | - Kai Xu
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, Department of Labor and Environmental Health, School of Public Health, Southeast University, Nanjing, 210009, China
| | - Jiawei Huang
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, Department of Labor and Environmental Health, School of Public Health, Southeast University, Nanjing, 210009, China
| | - Jinyan Liu
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, Department of Labor and Environmental Health, School of Public Health, Southeast University, Nanjing, 210009, China
| | - Qin Ding
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, Department of Labor and Environmental Health, School of Public Health, Southeast University, Nanjing, 210009, China
| | - Juan Zhang
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, Department of Labor and Environmental Health, School of Public Health, Southeast University, Nanjing, 210009, China
| | - Yuepu Pu
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, Department of Labor and Environmental Health, School of Public Health, Southeast University, Nanjing, 210009, China
| | - Rongli Sun
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, Department of Labor and Environmental Health, School of Public Health, Southeast University, Nanjing, 210009, China.
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Zhang F, Deng Z, Ma L, Gui X, Yang Y, Wang L, Zhao C, Li H. Pollution characteristics and prospective risk of microplastics in the Zhengzhou section of Yellow River, China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 931:172717. [PMID: 38670371 DOI: 10.1016/j.scitotenv.2024.172717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2024] [Revised: 04/08/2024] [Accepted: 04/22/2024] [Indexed: 04/28/2024]
Abstract
The ubiquitous occurrence of microplastics (MPs) in the freshwater has attracted widespread attention. The Zhengzhou section of the Yellow River was the most prosperous region in ancient China, and the rapid urbanization, industrialization, and agricultural practices contributed to MPs pollution in aquatic systems recently, whereas the contamination status of MPs in the area is still not available. In this study, a total of fourteen sampling cross-sections were selected in the region to collect water samples systematically for the analysis of MPs pollution characteristics and potential risks. Results showed that abundance of MPs in the water were ranged from 2.33 to 15.50 n/L, with an average value of 6.40 ± 3.40 n/L, which was higher than it in other inland rivers from China. Moreover, the MPs of 0.5-2 mm were the dominant sizes in Yellow River of Zhengzhou region, and most of them were black fibres. The top three polymers were Polyethylene terephthalate (PET), Polyamide (PA) and Polypropylene (PP). High diversity indices of MPs observed at S3, S4, S5, S6, S7, and S8 for size, colour, polymer and shape indicated diverse and complex sources of MPs in those cross-sections. The MPs in water from Zhengzhou area of Yellow River probably degraded from textiles, fishing net, plastic bags, mulching film, packaging bags, and tire wear. The chemical risk assessment revealed a level III risk for study area, while S8 and S11 in which PVA or PAN with higher hazard score detected were categorised as class V risk. Coincidentally, probabilistic risk assessment showed a considerable ecological risk of MPs from Yellow River in Zhengzhou City, with possibility of 99.48 and 98.01 % adverse effect for food dilution and translocation-mediated mechanism, respectively. The results are expected to assistance for development of policies and ultimately combating MPs pollution.
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Affiliation(s)
- Fawen Zhang
- College of Forestry, Henan Agricultural University, Zhengzhou 450046, China
| | - Zhengyun Deng
- College of Forestry, Henan Agricultural University, Zhengzhou 450046, China
| | - Li Ma
- College of Forestry, Henan Agricultural University, Zhengzhou 450046, China.
| | - Xin Gui
- College of Forestry, Henan Agricultural University, Zhengzhou 450046, China
| | - Yuan Yang
- College of Environment & Ecology, Hunan Agricultural University, Changsha 4100128, China.
| | - Lin Wang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Changmin Zhao
- Zhengzhou Ecological Environment Monitoring Center of Henan Province, Zhengzhou 450007, China
| | - Hetong Li
- Zhengzhou Ecological Environment Monitoring Center of Henan Province, Zhengzhou 450007, China
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Wang Q, Yamada Y, Enyoh CE, Wang W, Sankoda K. Characterization of Microplastics and Adsorbed/Dissolved Polycyclic Aromatic Hydrocarbons in the Biggest River System in Saitama and Tokyo, Japan. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:1030. [PMID: 38921906 PMCID: PMC11206372 DOI: 10.3390/nano14121030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2024] [Revised: 06/12/2024] [Accepted: 06/13/2024] [Indexed: 06/27/2024]
Abstract
This study presents a comprehensive characterization of microplastics (MPs) and adsorbed/dissolved polycyclic aromatic hydrocarbons (PAHs) in the Arakawa River, the largest river system in Saitama and Tokyo, Japan. The MPs were sampled at various points along the river, revealing an average number density of 2.21 ± 1.48 pieces/m3, with a predominant size range of 0.5-1 mm. Polymer analysis indicated that polyethylene (PE) comprised the highest proportion of MPs (55.9%), followed by polypropylene (PP) (22.4%) and polystyrene (PS) (21.7%). Seasonal fluctuations in MPs concentration were observed, with the highest values in winter and the lowest in summer. An analysis of adsorbed PAHs revealed a median partition coefficient (Kd) value of 3.58 × 104 L/kg for MPs, indicating their affinity for PAHs. Further PAHs analysis revealed that the PAHs with the highest mean values were bicyclic naphthalene, pyrene, and fluoranthene. A comparison with coastal MPs showed differences in PAH composition, with higher proportions of high-ring PAHs observed in coastal samples. The study also investigated the distribution of PAHs in the dissolved and suspended states in the river, finding that similar PAHs were distributed in both states, with the PAHs present in MPs being about 1/10,000 of those in the dissolved and suspended states. The study underscores the importance of the continued monitoring and management of MPs and associated pollutants in river ecosystems.
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Affiliation(s)
- Qingyue Wang
- Graduate School of Science and Engineering, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama 338-8570, Japan; (Y.Y.); (W.W.)
| | - Yojiro Yamada
- Graduate School of Science and Engineering, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama 338-8570, Japan; (Y.Y.); (W.W.)
| | - Christian Ebere Enyoh
- Graduate School of Science and Engineering, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama 338-8570, Japan; (Y.Y.); (W.W.)
| | - Weiqian Wang
- Graduate School of Science and Engineering, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama 338-8570, Japan; (Y.Y.); (W.W.)
| | - Kenshi Sankoda
- Department of Environmental and Civil Engineering, Toyama Prefectural University, 5180 Kurokawa, Imizu-shi 939-0398, Toyama, Japan;
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Wang Y, Jing S, Hou P, Ni R, Niu L, Wanger TC, Liu W, Liu K. Soil erosion is a major drive for nano & micro-plastics to enter riverine systems from cultivated land. WATER RESEARCH 2024; 256:121597. [PMID: 38614030 DOI: 10.1016/j.watres.2024.121597] [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: 10/20/2023] [Revised: 04/04/2024] [Accepted: 04/08/2024] [Indexed: 04/15/2024]
Abstract
Nano and micro-plastics (NMPs, particles diameter <5 mm), as emerging contaminants, have become a major concern in the aquatic environment because of their adverse consequences to aquatic life and potentially human health. Implementing mitigation strategies requires quantifying NMPs mass emissions and understanding their sources and transport pathways from land to riverine systems. Herein, to access NMPs mass input from agricultural soil to riverine system via water-driven soil erosion, we have collected soil samples from 120 cultivated land in nine drainage basins across China in 2021 and quantified the residues of six common types of plastic, including polyvinyl chloride (PVC), polymethyl methacrylate (PMMA), polypropylene (PP), polyethylene (PE), polycarbonate (PC), and polystyrene (PS). NMPs (Σ6plastics) were detected in all samples at concentrations between 3.6 and 816.6 μg/g dry weight (median, 63.3 μg/g) by thermal desorption/pyrolysis-gas chromatography-mass spectrometry. Then, based on the Revised Universal Soil Loss Equation model, we estimated that about 22,700 tonnes of NMPs may enter the Chinese riverine system in 2020 due to agricultural water-driven soil erosion, which occurs primarily from May to September. Our result suggested that over 90% of the riverine NMPs related to agricultural soil erosion in China are attributed to 36.5% of the country's total cultivated land, mainly distributed in the Yangtze River Basin, Southwest Basin, and Pearl River Basin. The migration of NMPs due to water-driven soil erosion cannot be ignored, and erosion management strategies may contribute to alleviating plastic pollution issues in aquatic systems.
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Affiliation(s)
- Yanting Wang
- MOE Key Laboratory of Environmental Remediation and Ecosystem Health, Institute of Environmental Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Siyuan Jing
- Sustainable Agricultural Systems & Engineering Laboratory, School of Engineering, Westlake University, 18 Shilongshan Road, Hangzhou, Zhejiang 310024, China
| | - Peiyu Hou
- Division of Environment and Resources, College of Engineering, Westlake University, Hangzhou, Zhejiang 310024, China
| | - Rui Ni
- MOE Key Laboratory of Environmental Remediation and Ecosystem Health, Institute of Environmental Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Lili Niu
- Key Laboratory of Pollution Exposure and Health Intervention of Zhejiang Province, Interdisciplinary Research Academy, Zhejiang Shuren University, Hangzhou, Zhejiang 312028, China
| | - Thomas Cherico Wanger
- Sustainable Agricultural Systems & Engineering Laboratory, School of Engineering, Westlake University, 18 Shilongshan Road, Hangzhou, Zhejiang 310024, China; ChinaRiceNetwork.org, Hangzhou 310024, China
| | - Weiping Liu
- Key Laboratory of Pollution Exposure and Health Intervention of Zhejiang Province, Interdisciplinary Research Academy, Zhejiang Shuren University, Hangzhou, Zhejiang 312028, China
| | - Kai Liu
- Division of Environment and Resources, College of Engineering, Westlake University, Hangzhou, Zhejiang 310024, China.
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Wan S, Xu G, Xiong P, Qiao H, Chen X, Gu L, Xiong H, Wang B, Gu F. Microplastic pollution characteristics and ecological risk assessment in the Wuding River Basin, China. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 356:124228. [PMID: 38801879 DOI: 10.1016/j.envpol.2024.124228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 05/18/2024] [Accepted: 05/24/2024] [Indexed: 05/29/2024]
Abstract
Microplastics (MPs), as a new type of environmental pollutant, have attracted extensive attention in recent years. However, there has been relatively little research specifically focusing on MPs in the Yellow River Basin, China, particularly regarding MP migration patterns. Based on surface water and sediment samples from 19 sampling sites in the Wuding River (WDR), the abundances and characteristic distributions of MPs were analyzed, and the environmental factors affecting their distribution and potential ecological risks were evaluated. The results showed that the MP abundances in surface water and sediments of the WDR were significantly different (P < 0.05), with mean values of 2.98 ± 0.69 items/L and 419.47 ± 75.61 items/kg, respectively. In terms of MP characteristics, the most common size class was 0.1-0.5 mm in surface water. Polyethylene (PE, 32.50%) and polypropylene (PP, 27.50%) were the main polymer types of MPs in surface water. Although similar MP characteristics were observed in sediments, there were significantly more particles in the <0.1 mm particle size (P < 0.05), which was 15.0% higher than in surface water. Also, more high-density MP fragments were observed in sediment samples. The retention of MPs in sediments was influenced by the MP characteristics (density, shape, particle size) and sediment particle size. In contrast, the MP abundance in surface water was more closely related to the presence of other environmental pollutants, such as total phosphorus (WTP) and ammonia nitrogen (WAN). Temperature (T), agricultural land (AGR), and residential land (RES) only had significant effects on the distribution of MPs in surface water (P < 0.05). Potential ecological risk assessments revealed that MP pollution in sediments was more serious than in surface water, especially in the middle and lower reaches. The results of this study are important for understanding MP transport in a sandy river and for eliminating potential sources of MPs.
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Affiliation(s)
- Shun Wan
- State Key Laboratory of Eco-hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi' an, 710048, Shaanxi, China
| | - Guoce Xu
- State Key Laboratory of Eco-hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi' an, 710048, Shaanxi, China.
| | - Ping Xiong
- Shaanxi Forestry Survey and Planning Institute, Xi'an, 710082, Shaanxi, China
| | - Hailiang Qiao
- Shaanxi Forestry Survey and Planning Institute, Xi'an, 710082, Shaanxi, China
| | - Xin Chen
- State Key Laboratory of Eco-hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi' an, 710048, Shaanxi, China
| | - Liuyang Gu
- State Key Laboratory of Eco-hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi' an, 710048, Shaanxi, China
| | - Haijing Xiong
- State Key Laboratory of Eco-hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi' an, 710048, Shaanxi, China
| | - Bin Wang
- State Key Laboratory of Eco-hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi' an, 710048, Shaanxi, China
| | - Fengyou Gu
- State Key Laboratory of Eco-hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi' an, 710048, Shaanxi, China
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8
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Nik Mut NN, Na J, Jung J. A review on fate and ecotoxicity of biodegradable microplastics in aquatic system: Are biodegradable plastics truly safe for the environment? ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 344:123399. [PMID: 38242301 DOI: 10.1016/j.envpol.2024.123399] [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: 11/05/2023] [Revised: 01/14/2024] [Accepted: 01/17/2024] [Indexed: 01/21/2024]
Abstract
Plastic products are extensively used worldwide, but inadequate management of plastic waste results in significant plastic pollution. Biodegradable plastic (BPs) offers an alternative to traditional plastics, however, not all BPs can fully degrade under natural conditions. Instead, they may deteriorate into biodegradable microplastic (BMPs) at a faster rate than conventional plastic, thereby posing an additional hazard to aquatic environments. This study provides a comprehensive overview of the fate of BPs in aquatic systems and their eco-toxicological effects on aquatic organisms such as algae, invertebrates, and fish. The findings highlight that BMPs have comparable or heightened effects compared to conventional microplastics (MPs) which physiochemical characteristic of the polymer itself or by the chemical leached from the polymeric matrix can affect aquatic organisms. While BPs is not a flawless solution to address plastic pollution, future research should prioritize investigating their production, environmental behavior, ecological impact, and whether BMPs inflict greater harm than conventional MPs.
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Affiliation(s)
- Nik Nurhidayu Nik Mut
- Division of Environmental Science and Ecological Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Joorim Na
- OJEong Resilience Institute, Korea University, Seoul, 02841, Republic of Korea.
| | - Jinho Jung
- Division of Environmental Science and Ecological Engineering, Korea University, Seoul, 02841, Republic of Korea
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9
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Ding S, Gu X, Sun S, He S. Optimization of microplastic removal based on the complementarity of constructed wetland and microalgal-based system. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:169081. [PMID: 38104829 DOI: 10.1016/j.scitotenv.2023.169081] [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: 08/29/2023] [Revised: 11/06/2023] [Accepted: 12/01/2023] [Indexed: 12/19/2023]
Abstract
As one of the emblematic emerging contaminants, microplastics (MPs) have aroused great public concern. Nevertheless, the global community still insufficiently acknowledges the ecological health risks and resolution strategies of MP pollution. As the nature-based biotechnologies, the constructed wetland (CW) and microalgal-based system (MBS) have been applied in exploring the removal of MPs recently. This review separately presents the removal research (mechanism, interactions, implications, and technical defects) of MPs by a single method of CWs or MBS. But one thing with certitude is that the exclusive usage of these techniques to combat MPs has non-negligible and formidable challenges. The negative impacts of MP accumulation on CWs involve toxicity to macrophytes, substrates blocking, and nitrogen-removing performance inhibition. While MPs restrict MBS practical application by making troubles for separation difficulties of microalgal-based aggregations from effluent. Hence the combined strategy of microalgal-assisted CWs is proposed based on the complementarity of biotechnologies, in an attempt to expand the removing size range of MPs, create more biodegradable conditions and improve the effluent quality. Our work evaluates and forecasts the potential of integrating combination for strengthening micro-polluted wastewater treatment, completing the synergistic removal of MP-based co-pollutants and achieving long-term stability and sustainability, which is expected to provide new insights into MP pollution regulation and control.
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Affiliation(s)
- Shaoxuan Ding
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Xushun Gu
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Shanshan Sun
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Shengbing He
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China; Shanghai Engineering Research Center of Landscape Water Environment, Shanghai 200031, PR China.
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10
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Wang L, Chen M, Wu Y, Chen X, Jin H, Huang J. Spatial distribution and vertical characteristics of microplastics in the urban river: The case of Qinhuai River in Nanjing, China. MARINE POLLUTION BULLETIN 2024; 199:115973. [PMID: 38171161 DOI: 10.1016/j.marpolbul.2023.115973] [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: 10/18/2023] [Revised: 12/12/2023] [Accepted: 12/21/2023] [Indexed: 01/05/2024]
Abstract
Microplastics (MPs) are emerging as global environmental pollutants, significantly influencing the safety of city rivers. This study investigated six sampling sites in the Qinhuai River of Nanjing, which explored the distribution and characteristics of MPs and the microbial structure in 2023. The studied river contained various levels of MPs with average concentrations of 667.68 items/L, whose abundance firstly decreased midstream and then increased downstream. The MPs abundance upstream was higher in surface water column, microplastics midstream and downstream accumulated more in deep water column. Black and blue are prevalent in the color distribution, while the polymers of PC, PP and PS changed with increasing depth, with a proportion of 74 % ∼ 97 % in the dominant shapes of granules. Furthermore, the water with higher MPs may stimulate the growth of MPs-related bacteria in sediments, including the genus of Pseudoxanthomonas and Dechloromonas. Our research will provide constructive support for enhancing urban river management strategies.
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Affiliation(s)
- Luming Wang
- Department of Municipal Engineering, School of Civil Engineering, Southeast University, Nanjing 210096, China
| | - Ming Chen
- Nanjing Research Institute of Environmental Protection, Nanjing 210008, China
| | - Yufeng Wu
- Department of Municipal Engineering, School of Civil Engineering, Southeast University, Nanjing 210096, China
| | - Xuan Chen
- Department of Municipal Engineering, School of Civil Engineering, Southeast University, Nanjing 210096, China
| | - Hui Jin
- Nanjing Research Institute of Environmental Protection, Nanjing 210008, China
| | - Juan Huang
- Department of Municipal Engineering, School of Civil Engineering, Southeast University, Nanjing 210096, China.
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11
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Liu S, Li Y, Wang F, Gu X, Li Y, Liu Q, Li L, Bai F. Temporal and spatial variation of microplastics in the urban rivers of Harbin. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 910:168373. [PMID: 37951265 DOI: 10.1016/j.scitotenv.2023.168373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 11/03/2023] [Accepted: 11/04/2023] [Indexed: 11/13/2023]
Abstract
This study was to investigate temporal and spatial variation of microplastics in surface water and sediment in the urban rivers of Harbin during dry and wet season. Water samples (n = 25) in Xinyi River (n = 13) and Ashe River (n = 12) were collected from the selected sampling points. Microplastics in urban rivers in Harbin included polyethylene (PE), polypropylene (PP), polystyrene (PS), polyamide (PA), polyvinyl chloride (PVC) and polyethylene terephthalate (PET). The results show that urban rivers in Harbin had relatively mild microplastic abundance with most fragments in shape and colorless in color. PP and PE were the major polymers in surface water samples, while PVC and PET were the major polymers in sediment, which were dominated by large-size and granulate shape microplastics. Source apportionment demonstrate that the main sources of microplastics in Xinyi River and Ashe River during dry season were domestic wastewater and effluent from rainfall, while the main sources of microplastics in Xinyi River and Ashe River during wet season were wastewater, atmospheric sedimentation, and agricultural source. The morphology of microplastics in surface water and sediment in urban rivers of Harbin was negatively correlated with water velocity and positively correlated with the concentration of suspended matter, dissolved oxygen, and conductivity. Riparian vegetation on the sides of Xinyi and Ashe River decreased migration process of microplastics by vegetal purification and then resulted in low abundance of microplastics. In conclusion, this study highlighted the occurrence characteristics, source apportionment and environmental influencing factors of microplastics in urban rivers of Harbin, which may develop new insights into the reduction of abundance of microplastics in the urban rivers.
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Affiliation(s)
- Shuo Liu
- School of Geographical Science, Harbin Normal University, Harbin 150025, China
| | - Yundong Li
- School of Geographical Science, Harbin Normal University, Harbin 150025, China
| | - Feiyu Wang
- School of Geographical Science, Harbin Normal University, Harbin 150025, China
| | - Xueqian Gu
- School of Geographical Science, Harbin Normal University, Harbin 150025, China
| | - Yuxiang Li
- School of Geographical Science, Harbin Normal University, Harbin 150025, China
| | - Qi Liu
- School of Geographical Science, Harbin Normal University, Harbin 150025, China
| | - Lipin Li
- State Key Laboratory of Urban Water and Environment, Harbin Institute of Technology, Harbin 150096, China.
| | - Fuliang Bai
- School of Geographical Science, Harbin Normal University, Harbin 150025, China
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12
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Sawan R, Doyen P, Viudes F, Amara R, Mahfouz C. Microplastic inputs to the Mediterranean Sea during wet and dry seasons: The case of two Lebanese coastal outlets. MARINE POLLUTION BULLETIN 2024; 198:115781. [PMID: 38000265 DOI: 10.1016/j.marpolbul.2023.115781] [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: 07/18/2023] [Revised: 11/02/2023] [Accepted: 11/11/2023] [Indexed: 11/26/2023]
Abstract
Few studies have highlighted the impact of urbanization and meteorological events on the quantity of microplastics (MPs) discharged into the sea through rivers. To evaluate this issue in the Mediterranean Basin, surface water samples were collected from two more or less urbanized Lebanese Rivers: the Nahr Ibrahim (S1) and the Nahr Antelias (S2), during dry and wet periods. A significant higher abundance of 14.02 ± 9.8 particles/L was reported in the most industrialized river S2 compared to 1.73 ± 1.38 particles/L at S1. A correlation was found between particle contamination and the season at each site. Our results indicate that the MP concentrations were highest on the first sampling day of the wet season and tended to decrease progressively with increasing cumulative precipitation. Some polymers were identified only during one season. Meteorological events should be taken more specifically into account in order to define the influx of plastic pollution into coastal waters more accurately.
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Affiliation(s)
- Rosa Sawan
- Univ. Littoral Côte d'Opale, CNRS, IRD, Univ. Lille, UMR 8187 - LOG - Laboratoire d'Océanologie et de Géosciences, F-62930 Wimereux, France; National Center for Marine Sciences, CNRS-L, Beirut, Lebanon.
| | - Périne Doyen
- Univ. Littoral Côte d'Opale, UMRt 1158 BioEcoAgro, USC ANSES, INRAe, Univ. Artois, Univ. Lille, Univ. Picardie Jules Verne, Univ. Liège, Junia, 62200 Boulogne-sur-Mer, France
| | - Florence Viudes
- Univ. Littoral Côte d'Opale, CNRS, IRD, Univ. Lille, UMR 8187 - LOG - Laboratoire d'Océanologie et de Géosciences, F-62930 Wimereux, France
| | - Rachid Amara
- Univ. Littoral Côte d'Opale, CNRS, IRD, Univ. Lille, UMR 8187 - LOG - Laboratoire d'Océanologie et de Géosciences, F-62930 Wimereux, France
| | - Céline Mahfouz
- National Center for Marine Sciences, CNRS-L, Beirut, Lebanon
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13
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Tan Y, Dai J, Xiao S, Tang Z, Zhang J, Wu S, Wu X, Deng Y. Occurrence of microplastic pollution in rivers globally: Driving factors of distribution and ecological risk assessment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 904:165979. [PMID: 37543313 DOI: 10.1016/j.scitotenv.2023.165979] [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: 06/07/2023] [Revised: 07/19/2023] [Accepted: 07/30/2023] [Indexed: 08/07/2023]
Abstract
Microplastics, as global emerging pollutants, have received significant attention worldwide due to their ubiquitous presence in the rivers. However, there is still a lack of clarity on the occurrence, driving factors, and ecological risks of microplastics in rivers worldwide. In this study, a global microplastic dataset based on 862 water samples and 445 sediment samples obtained from 63 articles was constructed, which revealed the temporal and spatial distribution of abundance and morphological characteristics of microplastics in rivers across the globe. In global rivers, the abundance of MPs in both water and sediment spans across 10 and 4 orders of magnitude, respectively. The MP comprehensive diversity index based on the physical morphological characteristics of MPs indicated a significant positive correlation between the pollution sources of MPs in different environmental media. Based on the data was aligned to the full-scale MPs, a novel framework was provided to evaluate the ecological risk of MPs and the interaction effects between the influencing factors driving the distribution characteristics of MPs in rivers around the world. The results obtained demonstrated a wide variation in the key driving factors affecting the distribution of microplastics in different environmental media (water and sediment) in rivers globally. The diversity indices of the morphological characteristics of MPs in densely populated areas of lower-middle income countries in Asia were significantly higher, implying that the sources of microplastics in these regions are more complex and extensive. More than half of the rivers are exposed to potential ecological risks of MPs; however, microplastics may pose only immediate risks to aquatic species in Burigang River, Bangladesh. This can provide valuable insights for formulating more effective scientific strategies for the management of MP pollution in rivers.
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Affiliation(s)
- Yanping Tan
- College of Water Conservancy and Hydropower Engineering, Sichuan Agricultural University, Ya'an 625000, China; State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing Hydraulic Research Institute, Nanjing 210029, China; State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu 610065, China
| | - Jiangyu Dai
- State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing Hydraulic Research Institute, Nanjing 210029, China.
| | - Shuwen Xiao
- College of Water Conservancy and Hydropower Engineering, Sichuan Agricultural University, Ya'an 625000, China
| | - Zhiqiang Tang
- College of Water Conservancy and Hydropower Engineering, Sichuan Agricultural University, Ya'an 625000, China
| | - Jianmin Zhang
- State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu 610065, China
| | - Shiqiang Wu
- State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing Hydraulic Research Institute, Nanjing 210029, China
| | - Xiufeng Wu
- State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing Hydraulic Research Institute, Nanjing 210029, China
| | - Yu Deng
- College of Water Conservancy and Hydropower Engineering, Sichuan Agricultural University, Ya'an 625000, China.
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14
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Zhao Y, Jin R, Chen Y, Zhang J, Tao S, Liu S, Shen M. Constructed wetlands as neglected fixed source of microplastics and antibiotic resistance genes in natural water bodies? THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 902:166474. [PMID: 37625720 DOI: 10.1016/j.scitotenv.2023.166474] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 08/18/2023] [Accepted: 08/19/2023] [Indexed: 08/27/2023]
Abstract
The pollution status and the harm caused by microplastics and antibiotic resistance genes (ARGs) in aquatic ecosystems have been a growing concern. The presence of microplastics could accelerate the transfer and spread of ARGs. Before sewage reaches natural water bodies, microplastics and ARGs need to be eliminated through specific processes. Constructed wetlands are currently an effective and environmentally friendly wastewater treatment process. Research has shown significant effectiveness in removing microplastics and ARGs. Microplastics and ARGs can be removed through processes such as adsorption, capture, adhesion, and biodegradation. However, long-term continuous operation could lead to constructed wetlands becoming significant reservoirs of microplastics and ARGs. Inflow loads and seasonal variations in constructed wetlands may result in the reintroduction of persistent microplastics and ARGs into the receiving water body, establishing the constructed wetland as a continuous source of these pollutants in the receiving water body. The key to the widespread application of constructed wetlands lies in solving this challenging problem. Therefore, although constructed wetlands serve as a green strategy for removing microplastics and ARGs, there are still many gaps in our knowledge. Based on the current accumulation of microplastics and ARGs in constructed wetlands, this paper summarizes the removal of microplastics and ARGs in existing constructed wetlands and explores the interaction between them. Additionally, it proposes suggestions for optimizing the process and improving the reliability of monitoring microplastics and ARGs in sewage.
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Affiliation(s)
- Yifei Zhao
- School of Energy and Environment, Anhui University of Technology, Maanshan, Anhui 243002, PR China
| | - Ruixin Jin
- School of Energy and Environment, Anhui University of Technology, Maanshan, Anhui 243002, PR China
| | - Yihua Chen
- School of Energy and Environment, Anhui University of Technology, Maanshan, Anhui 243002, PR China.
| | - Jiahao Zhang
- School of Energy and Environment, Anhui University of Technology, Maanshan, Anhui 243002, PR China
| | - Shiyu Tao
- School of Energy and Environment, Anhui University of Technology, Maanshan, Anhui 243002, PR China
| | - Shiwei Liu
- School of Energy and Environment, Anhui University of Technology, Maanshan, Anhui 243002, PR China
| | - Maocai Shen
- School of Energy and Environment, Anhui University of Technology, Maanshan, Anhui 243002, PR China.
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