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Miao H, Zhang S, Gao W, Zhou J, Cai H, Wu L, Liu J, Wang Z, Liu T. Microplastics occurrence and distribution characteristics in mulched agricultural soils of Guizhou province. Sci Rep 2024; 14:21505. [PMID: 39277645 PMCID: PMC11401850 DOI: 10.1038/s41598-024-72829-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2024] [Accepted: 09/11/2024] [Indexed: 09/17/2024] Open
Abstract
Microplastics pollution in agricultural soil is increasingly recognized, but the specific situation varies with geography, climate conditions, and farming practices. The karst landscape, a typical geomorphology in China, demands a deeper understanding of microplastics pollution in such areas. This research zeroes in on Guizhou, a province known for its karst formations, by collecting soil samples from the mulched cultivation layer in ten counties and cities. The study employed metallographic microscopy, scanning electron microscopy (SEM-EDS), and Fourier-transform infrared spectroscopy (FT-IR) to analyze the presence and distribution of microplastics. Results show that polyethylene is the predominant component of microplastics in the mulched agricultural soils of Guizhou, primarily existing as irregular fragments in black, transparent, and translucent forms, with diameters of 40 ~ 120 μm and rough surfaces marked by significant erosion. The concentration of microplastics varies from 143.28 to 3,283.46 items/kg, averaging 1,150.60 ± 647.86 items/kg. The majority of particles accounting for 64.79% are sized between 10 ~ 100 μm. A highly significant positive correlation (p < 0.001) is found between mulching duration and microplastics concentration, indicating that prolonged mulching increases microplastics accumulation in farmlands. Additionally, crop type, irrigation method, and soil type also influence microplastics concentration. This study highlights the escalating issue of microplastics pollution in China's karst regions, underscoring the need for attention.
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Affiliation(s)
- Haiying Miao
- College of Eco-Environment Engineering, Guizhou Minzu University, Guiyang, 550025, China
- Engineering Research Center of Green and Low-carbon Technology for Plastic Application, Guizhou Minzu University, Guiyang, 550025, China
| | - Shuyi Zhang
- College of Eco-Environment Engineering, Guizhou Minzu University, Guiyang, 550025, China
| | - Weichang Gao
- Upland Flue-cured Tobacco Quality & Ecology Key Laboratory of CNTC, Guizhou Academy of Tobacco Science, Guiyang, 550081, China.
| | - Jianyun Zhou
- Guiyang Tobacco Company of Guizhou Province, Guiyang, 550001, China
| | - Heqing Cai
- Bijie Tobacco Company of Guizhou Province, Bijie, 551700, China
| | - Linjing Wu
- College of Eco-Environment Engineering, Guizhou Minzu University, Guiyang, 550025, China
- Engineering Research Center of Green and Low-carbon Technology for Plastic Application, Guizhou Minzu University, Guiyang, 550025, China
| | - Juncong Liu
- College of Eco-Environment Engineering, Guizhou Minzu University, Guiyang, 550025, China
- Engineering Research Center of Green and Low-carbon Technology for Plastic Application, Guizhou Minzu University, Guiyang, 550025, China
| | - Zhanghong Wang
- College of Eco-Environment Engineering, Guizhou Minzu University, Guiyang, 550025, China
- Engineering Research Center of Green and Low-carbon Technology for Plastic Application, Guizhou Minzu University, Guiyang, 550025, China
- Research Center of Solid Waste Pollution Control and Recycling, Guizhou Minzu University, Guiyang, 550025, China
| | - Taoze Liu
- College of Eco-Environment Engineering, Guizhou Minzu University, Guiyang, 550025, China.
- Engineering Research Center of Green and Low-carbon Technology for Plastic Application, Guizhou Minzu University, Guiyang, 550025, China.
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Su X, Liu M, Dou J, Tang Y, Lu Z, Xu J, He Y. Comprehensive Understanding on the Aging Process and Mechanism of Microplastics in the Sediment-Water Interface: Untangling the Role of Photoaging and Biodegradation. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:16164-16174. [PMID: 39190796 DOI: 10.1021/acs.est.4c06191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/29/2024]
Abstract
Microplastics (MPs) in coastal wetlands have been of great concern, but information on the aging behavior of MPs in the sediment-water interface is still lacking. In this study, the contribution of a typical abiotic (photoaging) and biotic (biodegradation) process and the underlying aging pathway of MPs with different degradabilities (including polypropylene, polyethylene terephthalate, and polylactic acid) were studied. With a quantified relative importance of photoaging (>55%) vs biodegradation, the crucial contribution of photoaging on MP aging was highlighted. This was likely attributed to more generation of reactive oxygen species (ROS) under sunlight irradiation conditions, containing O2•- and H2O2. By raising higher the level of malondialdehyde (0.5-3.5 times as high as that in the dark condition), these photochemically formed ROS caused oxidative stress and inhibited the selective attachment of plastic-degrading microbes on the MP surface, thereby weakening the effect of biodegradation. On this basis, the aging characteristics and potential pathway of different MPs were revealed. The functional group of nondegradable polypropylene tends to be broken by ROS first, while biodegradation (Arthrobacter oryzae and Bacillus sp.) played a relatively dominant role in biodegradable polylactic acid. This study provides a new sight for the understanding on the aging behaviors of MPs in the sediment-water interface.
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Affiliation(s)
- Xin Su
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Meng Liu
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Jibo Dou
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yao Tang
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Zhijiang Lu
- Department of Environmental Science and Geology, Wayne State University, Detroit, Michigan 48201, United States
| | - Jianming Xu
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yan He
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
- Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, Hangzhou 310058, China
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3
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Yuan W, Xu EG, Shabaka S, Chen P, Yang Y. The power of green: Harnessing phytoremediation to combat micro/nanoplastics. ECO-ENVIRONMENT & HEALTH 2024; 3:260-265. [PMID: 39234422 PMCID: PMC11372594 DOI: 10.1016/j.eehl.2024.04.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 02/07/2024] [Accepted: 04/02/2024] [Indexed: 09/06/2024]
Abstract
Plastic pollution and its potential risks have been raising public concerns as a global environmental issue. Global plastic waste may double by 2030, posing a significant challenge to the remediation of environmental plastics. In addition to finding alternative products and managing plastic emission sources, effective removal technologies are crucial to mitigate the negative impact of plastic pollution. However, current remediation strategies, including physical, chemical, and biological measures, are unable to compete with the surging amounts of plastics entering the environment. This perspective lays out recent advances to propel both research and action. In this process, phytoaccumulation, phytostabilization, and phytofiltration can be applied to reduce the concentration of nanoplastics and submicron plastics in terrestrial, aquatic, and atmospheric environments, as well as to prevent the transport of microplastics from sources to sinks. Meanwhile, advocating for a more promising future still requires significant efforts in screening hyperaccumulators, coupling multiple measures, and recycling stabilized plastics from plants. Phytoremediation can be an excellent strategy to alleviate global micro/nanoplastic pollution because of the cost-effectiveness and environmental sustainability of green technologies.
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Affiliation(s)
- Wenke Yuan
- Hubei Key Laboratory of Wetland Evolution & Ecological Restoration, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China
- Key Laboratory of Lake and Watershed Science for Water Security, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China
- Danjiangkou Wetland Ecosystem Field Scientific Observation and Research Station, Chinese Academy of Sciences & Hubei Province, Wuhan 430074, China
| | - Elvis Genbo Xu
- Department of Biology, University of Southern Denmark, Odense 5230, Denmark
| | - Soha Shabaka
- National Institute of Oceanography and Fisheries, Cairo 11516, Egypt
| | - Peng Chen
- Hubei Key Laboratory of Wetland Evolution & Ecological Restoration, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China
- Key Laboratory of Lake and Watershed Science for Water Security, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China
- Danjiangkou Wetland Ecosystem Field Scientific Observation and Research Station, Chinese Academy of Sciences & Hubei Province, Wuhan 430074, China
| | - Yuyi Yang
- Hubei Key Laboratory of Wetland Evolution & Ecological Restoration, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China
- Key Laboratory of Lake and Watershed Science for Water Security, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China
- Danjiangkou Wetland Ecosystem Field Scientific Observation and Research Station, Chinese Academy of Sciences & Hubei Province, Wuhan 430074, China
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4
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Zhao Z, Wei Y, Wang Y, Peng G, Zeng EY, Yu K, Xu XR, Li R. Fate and drivers of mariculture-derived microplastics from ponds to mangrove forests. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 361:124790. [PMID: 39178934 DOI: 10.1016/j.envpol.2024.124790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2024] [Revised: 08/06/2024] [Accepted: 08/20/2024] [Indexed: 08/26/2024]
Abstract
Due to the combined influences of marine and terrestrial disturbances, the sources of microplastics (MPs) in mangrove ecosystems are complex and diverse. Previous studies have inferred the possible involvement of mariculture activities as a potential source of mangrove MPs based on the characteristics of MPs. However, the direct contributions of mariculture-derived MPs to mangrove MPs remain largely unknown. In this study, we systematically investigated the fate of MPs in the discharge of mariculture wastewater by quantifying the source contributions of mariculture-derived MPs to rivers and mangroves. The majority of detected MPs were transparent fibers, with their composition primarily comprising materials commonly used in mariculture activities such as polyvinylpyrrolidone (PVP), polyethylene terephthalate (PET), and nylon. The partial least squares path model elucidated the relationships among the composition of MPs in ponds, rivers, and mangroves, indicating that ponds exert a substantial direct effect on mangroves, particularly significant in the sediments (63.68%). Water turbidity, sediment carbon content, and sediment particle size are key ecological factors influencing the abundance of mariculture-derived MPs. This study provides compelling evidence regarding the sources of mangrove MPs and novel insights into mitigating the dissemination of MPs.
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Affiliation(s)
- Zhen Zhao
- College of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, China
| | - Yihua Wei
- College of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, China
| | - Yijin Wang
- College of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, China
| | - Gen Peng
- College of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, China
| | - Eddy Y Zeng
- Key Laboratory of Pollution Control and Ecosystem Restoration in Industry Clusters (Ministry of Education), School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China
| | - Kefu Yu
- Guangxi Laboratory on the Study of Coral Reefs in the South China Sea, School of Marine Sciences, Guangxi University, Nanning, 530004, China; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, 511458, China
| | - Xiang-Rong Xu
- Guangxi Laboratory on the Study of Coral Reefs in the South China Sea, School of Marine Sciences, Guangxi University, Nanning, 530004, China; Key Laboratory of Tropical Marine Bio-Resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China; Sanya Institute of Ocean Eco-Environmental Engineering, Sanya, 572000, China.
| | - Ruilong Li
- College of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, China
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5
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Liu J, Xu G, Zhao S, He J. Plastisphere Microbiomes Respiring Persistent Organohalide Pollutants. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:14740-14752. [PMID: 39103310 DOI: 10.1021/acs.est.4c02251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/07/2024]
Abstract
Plastics are invading nearly all ecosystems on earth, acting as emerging repositories for toxic organic pollutants and thereby imposing substantial threats to ecological integrity. The colonization of plastics by microorganisms, forming the plastisphere, has garnered attention due to its potential influence on biogeochemical cycles. However, the capability of plastisphere microorganisms to attenuate organohalide pollutants remains to be evaluated. This study revealed that the plastisphere, collected from coastal ecosystems, harbors unique microbiomes, while the natural accumulation of organohalide pollutants on plastics may favor the proliferation of organohalide-respiring bacteria (OHRB). Laboratory tests further elucidated the high potential of plastisphere microbiota to reductively dehalogenate a variety of organohalide pollutants. Notably, over 70% tested plastisphere completely debrominated tetrabromobisphenol A (TBBPA) and polybrominated diphenyl ethers (PBDEs) to nonhalogenated products, whereas polychlorinated biphenyls (PCBs) were converted to lower congeners under anaerobic conditions. Dehalococcoides, Dehalogenimonas, and novel Dehalococcoidia populations might contribute to the observed dehalogenation based on their growth during incubation and positive correlations with the quantity of halogens removed. Intriguingly, large fractions of these OHRB populations were identified in a lack of the currently known TBBPA/PBDEs/PCBs reductive dehalogenase (RDase) genes, suggesting the presence of novel RDase genes. Microbial community analyses identified organohalides as a crucial factor in determining the composition, diversity, interaction, and assembly of microbes derived from the plastisphere. Collectively, this study underscores the overlooked roles of the plastisphere in the natural attenuation of persistent organohalide pollutants and sheds light on the unignorable impacts of organohalide compounds on the microbial ecology of the plastisphere.
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Affiliation(s)
- Jinting Liu
- Department of Civil and Environmental Engineering, National University of Singapore, Singapore 117576, Singapore
| | - Guofang Xu
- Department of Civil and Environmental Engineering, National University of Singapore, Singapore 117576, Singapore
| | - Siyan Zhao
- Department of Civil and Environmental Engineering, National University of Singapore, Singapore 117576, Singapore
| | - Jianzhong He
- Department of Civil and Environmental Engineering, National University of Singapore, Singapore 117576, Singapore
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6
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Li J, Li X, Luo J, Huang P, Ge C, Yang X, Wang H. Effects of polypropylene films and leached dissolved organic matters on bacterial community structure in mangrove sediments. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 939:173516. [PMID: 38802011 DOI: 10.1016/j.scitotenv.2024.173516] [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: 03/20/2024] [Revised: 05/20/2024] [Accepted: 05/24/2024] [Indexed: 05/29/2024]
Abstract
Over the past decades, the accumulation of plastics in mangrove ecosystems has emerged as a significant environmental concern, primarily due to anthropogenic activities. Polypropylene (PP) films, one of the plastic types with the highest detection rate, tend to undergo intricate aging processes in mangrove ecosystems, leading to the release of dissolved organic matter (DOM) that may further influence the local bacterial communities. Yet, the specific effects of new and weathered (aged) plastic films and the associated leached DOM on bacterial consortia in mangrove sediments remain poorly understood. In this study, an incubation experiment was conducted to elucidate the immediate effects and mechanisms of the new and relatively short-term (45 or 90 days) aged PP films, as well as their leached DOM (PDOM), on characteristics of DOM and the bacterial community structure in mangrove sediments under different tidal conditions. Surface morphology and functional group analyses showed that both new and aged PP films exhibited comparable degradation profiles under different tidal conditions over the incubation period. As compared to the new PP film treatments, the introduction of the short-term aged PP films significantly affected the content of humic-like compounds in sediments, and such effects were partially ascribed to the release of PDOM during the incubation. Although the addition of PP films and PDOM showed minor effects on the overall diversity and composition of bacterial communities in the sediments, the abundance of some dominant phyla exhibited a growth or reduction tendency, possibly changing their ecological functions. This study was an effective attempt to investigate the relationship among plastic surface characteristics, sedimentary physicochemical properties, and bacterial communities in mangrove sediments. It revealed the ecological ramifications of new and short-term plastic pollution and its leachates in mangrove seedtimes, enhancing our understating of their potential impacts on the health of mangrove ecosystems.
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Affiliation(s)
- Jiatong Li
- Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province, School of Environmental Science and Engineering, Hainan University, Haikou 570228, China
| | - Xue Li
- School of Life and Health, Hainan University, Haikou 570228, China; Key Laboratory of Environmental Toxicology, Hainan University, Ministry of Education, Haikou 570228, China
| | - Jiwei Luo
- Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province, School of Environmental Science and Engineering, Hainan University, Haikou 570228, China
| | - Peng Huang
- Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province, School of Environmental Science and Engineering, Hainan University, Haikou 570228, China
| | - Chengjun Ge
- Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province, School of Environmental Science and Engineering, Hainan University, Haikou 570228, China.
| | - Xing Yang
- Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province, School of Environmental Science and Engineering, Hainan University, Haikou 570228, China
| | - Hailong Wang
- School of Environmental and Chemical Engineering, Foshan University, Foshan 528000, China; Guangdong Provincial Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China
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Mohan P, Shahul Hamid F. Charting the microplastic menace: A bibliometric analysis of pollution in Malaysian mangroves and polypropylene bioaccumulation assessment in Anadara granosa. MARINE POLLUTION BULLETIN 2024; 205:116654. [PMID: 38959572 DOI: 10.1016/j.marpolbul.2024.116654] [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: 04/20/2024] [Revised: 06/13/2024] [Accepted: 06/23/2024] [Indexed: 07/05/2024]
Abstract
According to a bibliometric analysis, studies on microplastic pollution in Malaysia are still incomprehensive. This study found microplastic contamination in sediment (97 particles/kg) and water (10,963 particles/m3) samples from Malaysian mangroves. Sediment from Matang and water from Kuala Selangor recorded the highest microplastic concentrations at 140 ± 5.13 particles/kg and 13,350 ± 37.95 particles/m3, respectively. Fragmented, blue, rayon and particles of <0.1 mm microplastic were the most abundant in sediment and water. In an experiment of polypropylene microplastic uptakes, Anadara granosa was found to uptake more 0.1 mm fiber particles. The uptake is strongly correlated to the presence of microplastics in sediment and water. The estimated dietary intake (EDI) indicates that a consumer could ingest 507 microplastic particles/year by consuming contaminated A. granosa. Therefore, mitigating measures are crucial to safeguard aquatic systems and humans from microplastic pollution.
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Affiliation(s)
- Priya Mohan
- Institute of Biological Sciences, Faculty of Science, Universiti Malaya, 50603 Kuala Lumpur, Malaysia
| | - Fauziah Shahul Hamid
- Institute of Biological Sciences, Faculty of Science, Universiti Malaya, 50603 Kuala Lumpur, Malaysia; Center for Research in Waste Management, Faculty of Science, Universiti Malaya, 50603 Kuala Lumpur, Malaysia.
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Mendes DS, Silva DNN, Santiago LEP, Gomes VJC, Beasley CR, Fernandes MEB. Comprehensive risk assessment of microplastics in tidal channel sediments in amazonian mangroves (northern Brazil). JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 366:121826. [PMID: 39008928 DOI: 10.1016/j.jenvman.2024.121826] [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: 04/20/2024] [Revised: 07/01/2024] [Accepted: 07/08/2024] [Indexed: 07/17/2024]
Abstract
Pollution by microplastics (MPs) in mangroves is a growing concern, given its potential ecological and human health impacts. The characteristics of microplastic pollution and a risk assessment of MPs in the Amazon region's coastal sediments are still insufficient, and information about MP pollution in the benthic component of the mangrove ecosystem is lacking. We analyzed MP concentrations in the surface sediment of 9 stations in three tidal channels along the Ajuruteua Peninsula connected to the Caeté River estuary, aiming to assess the hazard level on the environment based on the Pollution Load Index (PLI). Raman and Fourier transform infrared spectroscopy determined the MP's chemical composition. The results showed that the abundance of sediment MPs ranged from 100 to 1200 items kg-1, with an average of 433 ± 261.6 items kg-1. The MPs were mainly composed of transparent and blue fragments and fibers, ranging in size from 100 to 5000 μm. Six types of polymers were identified, including alkyd varnish (AV), resin dispersion (RD), chlorinated polyethylene (CPE), polyethylene-polypropylene (PE-PP), low-density polyethylene (LDPE), and hostaperm blue (HB). Hydrodynamic processes within estuaries and tidal channels play a crucial role in explaining the concentrations found, as circulation determines the pattern of sediment deposition and the particles adhered to it. PLI risk assessment showed that all sampling sites were at hazard level I: a low level of contamination in the mangrove sediments. However, a more comprehensive and systematic monitoring campaign is needed to expand our knowledge about pollution and contamination by MPs in Amazon mangrove areas.
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Affiliation(s)
- Dayene Santiago Mendes
- Laboratório de Ecologia de Manguezal (LAMA), Instituto de Estudos Costeiros (IECOS), Universidade Federal do Pará (UFPA), Bragança 68600-000, PA, Brazil.
| | - Daniel Nobre Nunes Silva
- Grupo de Pesquisa em Ciência e Engenharia de Meios Porosos (GCEMP), Universidade Federal do Pará (UFPA), Salinópolis 68721-000, PA, Brazil.
| | | | - Vando José Costa Gomes
- Laboratório de Hidráulica Ambiental (HIDROLAB), Faculdade de Engenharia (FAE), Universidade Federal do Pará (UFPA), Salinópolis 68721-000, PA, Brazil.
| | - Colin Robert Beasley
- Laboratório de Conservação da Biodiversidade e das Águas, Instituto de Estudos Costeiros (IECOS), Universidade Federal do Pará (UFPA), Bragança 68600-000, PA, Brazil.
| | - Marcus Emanuel Barroncas Fernandes
- Laboratório de Ecologia de Manguezal (LAMA), Instituto de Estudos Costeiros (IECOS), Universidade Federal do Pará (UFPA), Bragança 68600-000, PA, Brazil.
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9
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Aghadadashi V, Mehdinia A, Rezaei M, Molaei S, Seyed Hashtroudi M, Ahmadian F, Hamzehpour A, Rahnama R. Basin scale monitoring of microplastics and phthalates in sediments from the Persian Gulf and the Gulf of Makran using GIS-based algorithms: Insights towards spatial variation and potential risk assessment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 927:171950. [PMID: 38537822 DOI: 10.1016/j.scitotenv.2024.171950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Revised: 03/22/2024] [Accepted: 03/23/2024] [Indexed: 04/08/2024]
Abstract
Information on sedimentary microplastics and phthalates has been restricted to the coastal regions of the Persian Gulf and the Gulf of Makran. Our basin-wide study monitored their levels, spatial behaviors, and potential risks using GIS-based techniques. Microplastics and phthalates ranged from 5 to 75 particles/kg d.w and 0.004-1.219 μg g-1 d.w, respectively. Microplastics were in the size category of 100 μm to 3 mm, and black microfibers (< 1 mm) and high-density polymers were dominant. The total number of microplastics was between 356.333 × 1012 and 469.075 × 1012 particles in the surface sediments of the studied regions (confidence interval = 99 %). Diethylhexyl phthalate (DEHP) and Di-isobutyl phthalate contributed 88 % of detected phthalates. Significant correlations among microplastic abundance, total phthalates, and DEHP were distinguished (p < 0.05). Overall, the findings reiterated the widespread presence of microplastics and a potential link between phthalates and microplastics. Semi-variogram, cluster Voronoi polygons, and Trend analysis identified spatial outliers and major deposition sites of microplastics and phthalates and consequently outlined the localities where upcoming studies should be concentrated. A hotspot of potential risks was marked using Fuzzy logic and GIS-based algorithms in the Sea of Makran, covering an area equal to 342. 99 km2.
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Affiliation(s)
- Vahid Aghadadashi
- Department of Marine Living Science, Ocean Science Research Center, Iranian National Institute for Oceanography and Atmospheric Sciences, INIOA, Tehran, Iran.
| | - Ali Mehdinia
- Department of Marine Living Science, Ocean Science Research Center, Iranian National Institute for Oceanography and Atmospheric Sciences, INIOA, Tehran, Iran
| | - Mahdie Rezaei
- School of Chemistry, College of Science, University of Tehran, Tehran, Iran
| | - Saeideh Molaei
- Department of Chemistry, Kharazmi University, Tehran, Iran
| | - Mehri Seyed Hashtroudi
- Department of Marine Living Science, Ocean Science Research Center, Iranian National Institute for Oceanography and Atmospheric Sciences, INIOA, Tehran, Iran
| | - Fatemeh Ahmadian
- Department of Chemistry, Sharif University of Technology, Tehran, Iran
| | - Ali Hamzehpour
- Department of Marine Living Science, Ocean Science Research Center, Iranian National Institute for Oceanography and Atmospheric Sciences, INIOA, Tehran, Iran
| | - Reza Rahnama
- Department of Marine Living Science, Ocean Science Research Center, Iranian National Institute for Oceanography and Atmospheric Sciences, INIOA, Tehran, Iran
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10
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Wang Y, Liu X, Han W, Jiao J, Ren W, Jia G, Huang C, Yang Q. Migration and transformation modes of microplastics in reclaimed wastewater treatment plant and sludge treatment center with thermal hydrolysis and anaerobic digestion. BIORESOURCE TECHNOLOGY 2024; 400:130649. [PMID: 38570098 DOI: 10.1016/j.biortech.2024.130649] [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: 01/14/2024] [Revised: 03/13/2024] [Accepted: 03/31/2024] [Indexed: 04/05/2024]
Abstract
Microplastics in wastewater have been investigated globally, but less research on the migration and transformation of microplastics throughout wastewater and sludge treatment. This study investigated the fate of microplastics in a reclaimed wastewater treatment plant and a centralized sludge treatment center with thermal hydrolysis and anaerobic digestion. The results exhibited that the effluent microplastics of this reclaimed wastewater treatment plant were 0.75 ± 0.26 items/L. Approximately 98 % of microplastics were adsorbed and precipitated into sludge. After thermal hydrolysis, anaerobic digestion and plate and frame dewatering, the removal rate of microplastics was 41 %. Thermal hydrolysis was the most effective method for removing microplastics. Polypropylene, polyamide and polyethylene were widely detected in wastewater and sludge. 30 million microplastics were released into the downstream river and 51.80 billion microplastics entered soil through sludge cake daily. Therefore, substantial microplastics still entered the natural environment despite the high microplastics removal rate of reclaimed wastewater and sludge treatment.
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Affiliation(s)
- Yaxin Wang
- Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China
| | - Xiuhong Liu
- Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China.
| | - Weipeng Han
- Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China
| | - Jiatong Jiao
- Beijing Drainage Group Co., Ltd, Beijing 100034, China
| | - Wenyang Ren
- Beijing Drainage Group Co., Ltd, Beijing 100034, China
| | - Gaofeng Jia
- Beijing Drainage Group Co., Ltd, Beijing 100034, China
| | - Chenduo Huang
- Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China
| | - Qing Yang
- Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China
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11
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Otegui MBP, Schuab JM, França MA, Caniçali FB, Yapuchura ER, Zamprogno GC, da Costa MB. Microplastic contamination in different shell length in Tivela mactroides (Born, 1778). THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 922:171283. [PMID: 38423331 DOI: 10.1016/j.scitotenv.2024.171283] [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: 11/16/2023] [Revised: 02/23/2024] [Accepted: 02/24/2024] [Indexed: 03/02/2024]
Abstract
Microplastic identification and distribution throughout oceans has become a great concern due to its substantial uprising and its consequent interactions with marine biota. Microplastics can be absorbed and adsorbed by several marine species owing to their very small size. Among these organisms are bivalves, including ones used as food for humans. In this context, this research aims to understand the absorption scale of microplastics by Tivela mactroides according to their size and consequently life stage. Thus, T. mactroides mussels were collected at Camburi Beach (Brazil) and grouped into 30 different size classes from 06 to 35 mm. Later, 20 specimens from each size class (N = 600) had the soft tissues removed and a pool was performed through digestion with 10 % KOH solution. Results showed the presence of microplastics in all size classes of T. mactroides, evidencing that organisms from 06 mm can already be contaminated by microplastics and a tendency of the number of microplastics particles to increase as shell size increases. Furthermore, the amount of blue filament-type MPs was significantly higher than the other types and colors. Additionally, analyzes performed by Raman spectroscopy showed that the blue filaments have a PET composition. Finally, larger individuals presented larger quantities of MPs, as well as larger filaments. This might suggest that there are differences between the assimilation of the size of MPs in the different size classes, i.e. that size makes a difference.
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Affiliation(s)
- Mariana Beatriz Paz Otegui
- Laboratory of Coastal Biology and Microplastic Analysis, Laboratory of Research and Methodologies Development for Petroleum Analysis, Chemistry Department, Federal University of Espírito Santo, Brazil; Institute of Biodiversity and Applied Experimental Biology, Buenos Aires University, Argentina.
| | - João Marcos Schuab
- Laboratory of Coastal Biology and Microplastic Analysis, Laboratory of Research and Methodologies Development for Petroleum Analysis, Chemistry Department, Federal University of Espírito Santo, Brazil
| | - Millena Araujo França
- Laboratory of Coastal Biology and Microplastic Analysis, Laboratory of Research and Methodologies Development for Petroleum Analysis, Chemistry Department, Federal University of Espírito Santo, Brazil
| | - Felipe Barcellos Caniçali
- Laboratory of Coastal Biology and Microplastic Analysis, Laboratory of Research and Methodologies Development for Petroleum Analysis, Chemistry Department, Federal University of Espírito Santo, Brazil
| | - Enrique Ronald Yapuchura
- Universidad Tecnológica del Peru, Peru; Laboratory of Carbon and Ceramic Materials, Department of Physics, Federal University of Espírito Santo, Brazil
| | - Gabriela Carvalho Zamprogno
- Laboratory of Coastal Biology and Microplastic Analysis, Laboratory of Research and Methodologies Development for Petroleum Analysis, Chemistry Department, Federal University of Espírito Santo, Brazil
| | - Mercia Barcellos da Costa
- Laboratory of Coastal Biology and Microplastic Analysis, Laboratory of Research and Methodologies Development for Petroleum Analysis, Chemistry Department, Federal University of Espírito Santo, Brazil
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12
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Wei Y, Jiao M, Zhao Z, Tang L, Wang Y, Deng J, Peng G, Li R, Wang Y. Secreted salt and hydrodynamic factors combine to affect dynamic fluctuations of microplastics on mangrove leaves. JOURNAL OF HAZARDOUS MATERIALS 2024; 467:133698. [PMID: 38335603 DOI: 10.1016/j.jhazmat.2024.133698] [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: 11/14/2023] [Revised: 01/15/2024] [Accepted: 01/31/2024] [Indexed: 02/12/2024]
Abstract
Mangrove leaves have been acknowledged as crucial sink for coastal microplastics (MPs). Whereas, the temporal dynamics of MPs intercepted by mangrove leaves have remained poorly understood. Here, we detected MPs intercepted by submerged and non-submerged mangrove leaves over time and the potential driving factors. Abundance and characteristics of MPs interception by mangrove leaves exhibited dynamic fluctuations, with the coefficient of variation (CV) of submerged mangrove leaves (CV = 0.604; 1.76 n/g to 15.45 n/g) being approximately twofold higher than non-submerged mangrove leaves (CV = 0.377; 0.74 n/g to 3.28 n/g). Partial least squares path model (PLS-PM) analysis further illustrated that MPs abundance on submerged mangrove leaves were negative correlated to hydrodynamic factors (i.e., current velocity and tidal range). Intriguingly, secreted salt as a significantly driver of MPs intercepted by mangrove leaves. Results of this work highlights that MPs intercepted by mangrove leaves is characterized by dynamic fluctuations and reveals the importance of hydrodynamic factors and secreted salt. Overall, this work identifies the pivotal buffering role played by mangrove leaves in intercepting MPs, which provides basic knowledge for better understanding of microplastic pollution status and control from mangrove plants.
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Affiliation(s)
- Yihua Wei
- School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
| | - Meng Jiao
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China
| | - Zhen Zhao
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Liangdong Tang
- Institute of Green and Low Carbon Technology, Guangxi Institute of Industrial Technology, Nanning 530004, China
| | - Yijin Wang
- School of Marine Sciences, Guangxi University, Nanning 530004, China
| | - Jun Deng
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Gen Peng
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Ruilong Li
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China.
| | - Yinghui Wang
- Institute of Green and Low Carbon Technology, Guangxi Institute of Industrial Technology, Nanning 530004, China.
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13
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Liang B, Gao S, Zhang S, Gao C. Distribution characteristics and ecological risk assessment of microplastics in intertidal sediments near coastal water. MARINE ENVIRONMENTAL RESEARCH 2024; 195:106353. [PMID: 38295611 DOI: 10.1016/j.marenvres.2024.106353] [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: 09/22/2023] [Revised: 12/17/2023] [Accepted: 01/10/2024] [Indexed: 02/02/2024]
Abstract
Plastic products are widely distributed worldwide and continue to have a negative impact on the environment and organisms. Intertidal regions, which interface between upland and marine ecosystems, are regions of high ecological importance and serve as repositories for a variety of plastic wastes. However, ecological risk assessments of microplastics (MPs) in these transitional environments are still scarce. In this study, the morphological characteristics and spatial distribution of MPs in the intertidal surface sediments of Haizhou Bay were analyzed, and an ecological risk assessment framework for MPs was developed. Overall, the average abundance of MPs in the sediments was 2.31 ± 1.35 pieces/g dw. The size of the MPs was mainly less than 1 mm, and the main shape, color and polymer type of the MPs were mainly fibrous (58%), blue (30%), and PVC (22%), respectively. Cluster analyses showed that the sites could be well distinguished by size and polymer type but not by MP shape and color. According to the hazard scores, most of the sites in this area belonged to a risk level of IV, while the pollution loading index (PLI) showed that most of the sites belonged to a risk level of II. The ecological toxicity risk from the species-sensitive distribution (SSD) model showed that one-third of the sites had ecological MPs toxicity risks to marine organisms. We believe that normalized and standardized assessment methods should be implemented to monitor and manage the risk of MPs in the intertidal sediments. Particularly, the multiple dimensions, standard abundance of MPs, as well as MPs ingestion in the intertidal organisms, should be fully considered in the next step.
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Affiliation(s)
- Baogui Liang
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China
| | - Shike Gao
- College of Marine Sciences, Shanghai Ocean University, Shanghai, 201306, China
| | - Shuo Zhang
- College of Marine Sciences, Shanghai Ocean University, Shanghai, 201306, China; Joint Laboratory for Monitoring and Conservation of Aquatic Living Resources In the Yangtze Estuary, Shanghai, 200000, China.
| | - Chunmei Gao
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China.
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14
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Mishra M, Sudarsan D, Santos CAG, da Silva RM, Beja SK, Paul S, Bhanja P, Sethy M. Current patterns and trends of microplastic pollution in the marine environment: A bibliometric analysis. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:22925-22944. [PMID: 38416357 DOI: 10.1007/s11356-024-32511-x] [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: 08/02/2023] [Accepted: 02/13/2024] [Indexed: 02/29/2024]
Abstract
Microplastics are pervasive in the natural environment and pose a growing concern for global health. Plastic waste in marine environments has emerged as a global issue, threatening not only marine biota but also human health due to its implications for the food chain. This study aims to discern the patterns and trends of research, specifically on Marine Microplastic Pollution (MMP), based on a bibliometric analysis of scientific publications from 2011 to 2022. The methodology utilized in this study comprises three stages: (a) creating a bibliographical dataset from Scopus by Elsevier and the Web of Science Core Collection by Clarivate Analytics, (b) analyzing current research (trends and patterns) using bibliometric analysis through Biblioshiny tool, and (c) examining themes and subthemes in MMP research (wastewater treatment, plastic ingestion, the Mediterranean Sea, microplastics pollution, microplastics in freshwater, microplastic ingestion, plastic pollution, and microplastic pollution in the marine environment). The findings reveal that during the studied period, the number of MMP publications amounted to 1377 articles, with an average citation per publication of 59.23 and a total citation count of 81,553. The most cited article was published in 2011, and since then, the number of publications on this topic has been increasing steadily. The author count stood at 5478, with 22 trending topics identified from the 1377 published titles. Between 2019 and 2022, the countries contributing most to the publication of MMP articles were China, the United States of America (USA), and the United Kingdom (UK). However, a noticeable shift in the origin of author countries was observed in the 2019-2022 timeframe, transitioning from a dominance by the USA and the UK to a predominance by China. In 2019, there was a substantial increase in the volume of publications addressing the topic of microplastics. The results show that the most prevalent themes and subthemes pertained to MMP in the Mediterranean Sea. The journals with the highest number of MMP articles published were the Marine Pollution Bulletin (253 articles) and Science of the Total Environment (190 articles). The analysis concludes that research on MMP remains prominent and appears to be increasing each year.
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Affiliation(s)
- Manoranjan Mishra
- Department of Geography, Fakir Mohan University, Vyasa Vihar, Nuapadhi, Balasore, 756089, Odisha, India
| | - Desul Sudarsan
- Department of Library and Information Science, Berhampur University, Berhampur, 760007, Odisha, India
| | - Celso Augusto Guimarães Santos
- Department of Civil and Environmental Engineering, Federal University of Paraíba, João Pessoa, 58051-900, Paraíba, Brazil.
| | | | - Santosh Kumar Beja
- Department of Environmental Science, Berhampur University, Berhampur, 760007, Odisha, India
| | - Suman Paul
- Department of Geography, Fakir Mohan University, Vyasa Vihar, Nuapadhi, Balasore, 756089, Odisha, India
| | - Pragati Bhanja
- Department of Library and Information Science, Berhampur University, Berhampur, 760007, Odisha, India
| | - Murtyunjya Sethy
- Department of Library and Information Science, Berhampur University, Berhampur, 760007, Odisha, India
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15
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Girones L, Adaro ME, Pozo K, Baini M, Panti C, Fossi MC, Marcovecchio JE, Ronda AC, Arias AH. Spatial distribution and characteristics of plastic pollution in the salt marshes of Bahía Blanca Estuary, Argentina. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:169199. [PMID: 38070560 DOI: 10.1016/j.scitotenv.2023.169199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 09/25/2023] [Accepted: 12/06/2023] [Indexed: 12/17/2023]
Abstract
This study delves into the magnitude and attributes of plastic pollution in the salt marshes of the Bahía Blanca Estuary, Argentina, with a specific focus on its spatial distribution. The investigation included the evaluation of microplastics (1-5 mm), mesoplastics (5-25 mm) and macroplastics (25-100 mm), discovering elevated levels along the high salt marsh strandline compared to low salt marsh and mudflat areas. Notably, the abundance of plastic reached staggering levels, reaching up to 20,060 items/m2 in the vicinity of an illegal dumpsite. Microplastics, particularly in the 2-4 mm range, were dominant, and the main plastic components were high-density polyethylene (HDPE), low-density polyethylene (LDPE), polypropylene (PP), and polystyrene (PS). Plastic films emerged as the predominant plastic type, while the presence of pellets hinted at potential sources such as illegal dumping and port-related activities. This contamination could be largely attributed to inappropriate waste management practices and urban runoff, which pose a substantial ecological threat to these ecosystems. Urgent remedial action is essential to protect these marshes, underscoring the critical need for comprehensive wetland management and educational initiatives to ensure their long-term sustainability.
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Affiliation(s)
- Lautaro Girones
- Instituto Argentino de Oceanografía (IADO - CONICET/UNS), Camino La Carrindanga km 7.5, B8000FWB Bahía Blanca, Argentina; Departamento de Ingeniería Química, Universidad Nacional del Sur (UNS), Av. Alem 1253, 8000 Bahía Blanca, Argentina.
| | - Maria Eugenia Adaro
- Instituto Argentino de Oceanografía (IADO - CONICET/UNS), Camino La Carrindanga km 7.5, B8000FWB Bahía Blanca, Argentina
| | - Karla Pozo
- Masaryk University, Faculty of Science (RECETOX), Kamenice 753/5, 62500 Brno, Czech Republic; Universidad San Sebastián, Facultad de Ingeniería, Arquitectura y Diseño, Lientur 1457, 4030000 Concepción, Chile.
| | - Matteo Baini
- Department of Physical Sciences, Earth and Environment, University of Siena, Via P.A. Mattioli, 4, 53100 Siena, Italy.
| | - Cristina Panti
- Department of Physical Sciences, Earth and Environment, University of Siena, Via P.A. Mattioli, 4, 53100 Siena, Italy.
| | - Maria Cristina Fossi
- Department of Physical Sciences, Earth and Environment, University of Siena, Via P.A. Mattioli, 4, 53100 Siena, Italy.
| | - Jorge Eduardo Marcovecchio
- Instituto Argentino de Oceanografía (IADO - CONICET/UNS), Camino La Carrindanga km 7.5, B8000FWB Bahía Blanca, Argentina; Universidad de la Fraternidad de Agrupaciones Santo Tomás de Aquino, Gascón 3145, 7600 Mar del Plata, Argentina; Universidad Tecnológica Nacional - FRBB, 11 de Abril 445, 8000 Bahía Blanca, Argentina; Academia Nacional de Ciencias Exactas, Físicas y Naturales (ANCEFN), Av. Alvear 1711, 1014 Ciudad Autónoma de Buenos Aires, Argentina.
| | - Ana Carolina Ronda
- Instituto Argentino de Oceanografía (IADO - CONICET/UNS), Camino La Carrindanga km 7.5, B8000FWB Bahía Blanca, Argentina; Departamento de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur (UNS), Av. Alem 1253, 8000 Bahía Blanca, Argentina.
| | - Andres Hugo Arias
- Instituto Argentino de Oceanografía (IADO - CONICET/UNS), Camino La Carrindanga km 7.5, B8000FWB Bahía Blanca, Argentina; Departamento de Química, Universidad Nacional del Sur (UNS), Av. Alem 1253, 8000 Bahía Blanca, Argentina.
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16
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Wang Y, Jiao M, Zhao Z, Wang Y, Li T, Wei Y, Li R, Yang F. Insight into the role of niche concept in deciphering the ecological drivers of MPs-associated bacterial communities in mangrove forest. WATER RESEARCH 2024; 249:120995. [PMID: 38071907 DOI: 10.1016/j.watres.2023.120995] [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: 05/12/2023] [Revised: 10/22/2023] [Accepted: 12/07/2023] [Indexed: 01/03/2024]
Abstract
Myriad inherent and variable environmental features are controlling the assembly and succession of bacterial communities colonizing on mangrove microplastics (MPs). However, the mechanisms governing mangrove MPs-associated bacterial responses to environmental changes still remain unknown. Here, we assessed the dissimilarities of MPs-associated bacterial composition, diversity and functionality as well as quantified the niche variations of each taxon on plastispheres along river-mangrove-ocean and mangrove landward-to-seaward gradients in the Beibu Gulf, China, respectively. The bacterial richness and diversity as well as the niche breadth on mangrove sedimentary MPs dramatically decreased from landward to seaward regions. Characterizing the niche variations linked the difference of ecological drivers of MPs-associated bacterial populations and functions between river-mangrove-ocean (microplastic properties) and mangrove landward-to-seaward plastispheres (sediment physicochemical properties) to the trade-offs between selective stress exerted by inherent plastic substrates and microbial competitive stress imposed by environmental conditions. Notably, Rhodococcus erythropolis was predicted to be the generalist species and closely associated to biogeochemical cycles of mangrove plastispheres. Our work provides a reliable pathway for tackling the hidden mechanisms of environmental factors driving MPs-associated microbe from perspectives of niches and highlights the spatial dynamic variations of mangrove MPs-associated bacteria.
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Affiliation(s)
- Yijin Wang
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China; School of Marine Sciences, Guangxi University, Nanning 530004, China
| | - Meng Jiao
- School of Marine Sciences, Guangxi University, Nanning 530004, China
| | - Zhen Zhao
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Yinghui Wang
- Institute of Green and Low Carbon Technology, Guangxi Institute of Industrial Technology 16 Songxiang Road, Nanning 530004, China
| | - Tiezhu Li
- School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
| | - Yihua Wei
- School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
| | - Ruilong Li
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China.
| | - Fei Yang
- State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences and Natural Resources Research of Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China.
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17
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Li Z, Liu W, Rahaman MH, Chen Z, Yan J, Zhai J. Polystyrene microplastics accumulation in lab-scale vertical flow constructed wetlands: impacts and fate. JOURNAL OF HAZARDOUS MATERIALS 2024; 461:132576. [PMID: 37738848 DOI: 10.1016/j.jhazmat.2023.132576] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 08/29/2023] [Accepted: 09/16/2023] [Indexed: 09/24/2023]
Abstract
Microplastics (MPs) are ubiquitous pollutants that significantly threaten organisms and ecosystems. Constructed wetlands (CWs), a nature-based treatment technology, can effectively remove MPs from wastewater. However, the responses of CWs when exposed to MPs remain unclear. In this study, lab-scale vertical flow constructed wetlands (VFCWs) were installed for receiving polystyrene (PS) MPs at concentrations of 100 μg/L and 1000 μg/L. The results showed that exposure to PS-MPs has no effects on COD and TP removal in VFCWs, but TN removal decreased by 3.69-5.37 %. Further investigation revealed that PS-MPs significantly impacted microbial communities and metabolic functions. The abundances of predominant nitrifiers (Nitrospira and Nitrosomonas) and denitrifiers (Nakamurella, Bradyrhizobium, and Bacillus) in VFCWs were significantly reduced, aligning with the responses of key enzymes. The presence of PS-MPs also decreased nitrogen removal by plant uptake, leading to decreased plant biomass and chlorophyll by 39.32-48.75 % and 5.92-32.19 %, respectively. Notably, > 90 % removal rates were observed for PS-MPs within VFCWs. In addition to PS-MPs interception by VFCWs substrate, the increase of released benzenes indicated that the PS-MPs biodegradation occurred. Such insights are vital for developing sustainable solutions to mitigate MPs' adverse effects on ecosystems.
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Affiliation(s)
- Zhenchen Li
- College of Environment and Ecology, Chongqing University, Chongqing 400045, China
| | - Wenbo Liu
- Institute for Smart City of Chongqing University in Liyang, Chongqing University, Jiangsu 213300, China
| | - Md Hasibur Rahaman
- Institute for Smart City of Chongqing University in Liyang, Chongqing University, Jiangsu 213300, China
| | - Zhongbing Chen
- Department of Applied Ecology, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcka 129, Praha-Suchdol 16500, Czech Republic
| | - Jixia Yan
- College of Environment and Ecology, Chongqing University, Chongqing 400045, China
| | - Jun Zhai
- College of Environment and Ecology, Chongqing University, Chongqing 400045, China; Institute for Smart City of Chongqing University in Liyang, Chongqing University, Jiangsu 213300, China.
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18
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Talukdar A, Kundu P, Bhattacharjee S, Dey S, Dey A, Biswas JK, Chaudhuri P, Bhattacharya S. Microplastics in mangroves with special reference to Asia: Occurrence, distribution, bioaccumulation and remediation options. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 904:166165. [PMID: 37574065 DOI: 10.1016/j.scitotenv.2023.166165] [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: 07/15/2023] [Accepted: 08/07/2023] [Indexed: 08/15/2023]
Abstract
Microplastics (MPs) are a new and lesser-known pollutant that has intrigued the interest of scientists all over the world in recent decades. MP (<5mm in size) can enter marine environments such as mangrove forests in a variety of ways, interfering with the health of the environment and organisms. Mangroves are now getting increasingly exposed to microplastic contamination due to their proximity to human activities and their position as critical transitional zones between land and sea. The present study reviews the status of MPs contamination specifically in mangrove ecosystems situated in Asia. Different sources and characteristics of MPs, subsequent deposition of MPs in mangrove water and sediments, bioaccumulation in different organisms are discussed in this context. MP concentrations in sediments and organisms were higher in mangrove forests exposed to fishing, coastal tourism, urban, and industrial wastewater than in pristine areas. The distribution of MPs varies from organism to organism in mangrove ecosystems, and is significantly influenced by their morphometric characteristics, feeding habits, dwelling environment etc. Mangrove plants can accumulate microplastics in their roots, stem and leaves through absorption, adsorption and entrapment helping in reducing abundance of microplastic in the surrounding environment. Several bacterial and fungal species are reported from these mangrove ecosystems, which are capable of degrading MPs. The bioremediation potential of mangrove plants offers an innovative and sustainable approach to mitigate microplastic pollution. Diverse mechanisms of MP biodegradation by mangrove dwelling organisms are discussed in this context. Biotechnological applications can be utilized to explore the genetic potential of the floral and faunal species found in the Asian mangroves. Detailed studies are required to monitor, control, and evaluate MP pollution in sediments and various organisms in mangrove ecosystems in Asia as well as in other parts of the world.
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Affiliation(s)
| | - Pritha Kundu
- School of Ecology and Environment Studies, Nalanda University, Rajgir, Nalanda, Bihar 803116, India
| | - Shrayan Bhattacharjee
- Ecosystem and Ecology Laboratory, Post-graduate Department of Zoology, Ramakrishna Mission Vivekananda Centenary College, Rahara, Kolkata 700118, India
| | - Satarupa Dey
- Department of Botany, Shyampur Siddheswari Mahavidyalaya, Howrah 711301, West Bengal, India
| | - Abhijit Dey
- Department of Life Sciences, Presidency University, 86/1 College Street, Kolkata 700073, West Bengal, India
| | - Jayanta Kumar Biswas
- Enviromicrobiology, Ecotoxicology & Ecotechnology Research Laboratory (3E-MicroToxTech Lab), Department of Ecological Studies, and International Centre for Ecological Engineering, University of Kalyani, Nadia, West Bengal 741235, India
| | - Punarbasu Chaudhuri
- Department of Environmental Science, University of Calcutta, Kolkata 700019, West Bengal, India
| | - Sayan Bhattacharya
- School of Ecology and Environment Studies, Nalanda University, Rajgir, Nalanda, Bihar 803116, India.
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19
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Szafranski GT, Granek EF. Contamination in mangrove ecosystems: A synthesis of literature reviews across multiple contaminant categories. MARINE POLLUTION BULLETIN 2023; 196:115595. [PMID: 37852064 DOI: 10.1016/j.marpolbul.2023.115595] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 09/17/2023] [Accepted: 09/24/2023] [Indexed: 10/20/2023]
Abstract
Mangrove forests are exposed to diverse ocean-sourced and land-based contaminants, yet mangrove contamination research lags. We synthesize existing data and identify major gaps in research on five classes of mangrove contaminants: trace metals, persistent organic pollutants, polycyclic aromatic hydrocarbons, microplastics, and pharmaceuticals and personal care products. Research is concentrated in Asia, neglected in Africa and the Americas; higher concentrations are correlated with waste water treatment plants, industry, and urbanized landscapes. Trace metals and polycyclic aromatic hydrocarbons, frequently at concentrations below regulatory thresholds, may bioconcentrate in fauna, whereas persistent organic pollutants were at levels potentially harmful to biota through short- or long-term exposure. Microplastics were at variable levels, yet lack regulatory and ecotoxicological thresholds. Pharmaceuticals and personal care products received minimal research despite biological activity at small concentrations. Given potential synergistic effects, multi-contaminant research, increased monitoring of multiple contaminant classes, and increased public outreach and involvement are needed.
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Affiliation(s)
- Geoffrey T Szafranski
- Environmental Science & Management, Portland State University, Portland, OR, United States of America
| | - Elise F Granek
- Environmental Science & Management, Portland State University, Portland, OR, United States of America.
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20
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Niccolai E, Colzi I, Amedei A. Adverse Effects of Micro- and Nanoplastics on Humans and the Environment. Int J Mol Sci 2023; 24:15822. [PMID: 37958802 PMCID: PMC10647433 DOI: 10.3390/ijms242115822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 10/27/2023] [Accepted: 10/30/2023] [Indexed: 11/15/2023] Open
Abstract
The pervasive pollution caused by nano- and microplastics (N/MPLs) is a pressing concern, and was exacerbated during the COVID-19 pandemic due to the substantial release of disposable Personal Protective Equipment (PPE) into the environment [...].
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Affiliation(s)
- Elena Niccolai
- Department of Experimental and Clinical Medicine, University of Florence, 50134 Florence, Italy;
- Laboratorio Congiunto MIA-LAB (Microbiome-Immunity Axis Research for a Circular Health), University of Florence, 50134 Florence, Italy
| | - Ilaria Colzi
- Department of Biology, University of Florence, 50121 Florence, Italy;
| | - Amedeo Amedei
- Department of Experimental and Clinical Medicine, University of Florence, 50134 Florence, Italy;
- Laboratorio Congiunto MIA-LAB (Microbiome-Immunity Axis Research for a Circular Health), University of Florence, 50134 Florence, Italy
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21
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Mendes DS, Beasley CR, Silva DNN, Fernandes MEB. Microplastic in mangroves: A worldwide review of contamination in biotic and abiotic matrices. MARINE POLLUTION BULLETIN 2023; 195:115552. [PMID: 37738877 DOI: 10.1016/j.marpolbul.2023.115552] [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: 05/29/2023] [Revised: 08/29/2023] [Accepted: 09/14/2023] [Indexed: 09/24/2023]
Abstract
This review presents the spatial distribution (where) and the methods applied (how) in assessing Microplastics (MPs) contamination in sediments, water, and organisms in mangrove areas. We analyzed 53 articles on MPs in Asia, America, and Africa and produced by 359 authors, although very localized, lacking wide-scale coverage of mangrove coasts around the world. The results showed that most of studies provided MP's bulk characteristics (type, size, color, form), along with global gross reserves of MPs in the mangrove compartments. Investigations in mangrove areas are still relatively limited. Therefore, for future research, it is relevant to enhance spatial and temporal sampling of MP contamination and to establish standardized protocols to enable effective comparisons between mangrove areas, rivers, beaches, and coastal seas. In addition, it is crucial to investigate the role of MPs as carriers or vectors of other pollutants.
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Affiliation(s)
- Dayene Santiago Mendes
- Programa de Pós-Graduação em Biologia Ambiental, Instituto de Estudos Costeiros (IECOS) Universidade Federal do Pará (UFPA), Bragança, PA, Brazil; Laboratório de Ecologia de Manguezal (LAMA), Universidade Federal do Pará (UFPA), Bragança, PA, Brazil.
| | - Colin Robert Beasley
- Programa de Pós-Graduação em Biologia Ambiental, Instituto de Estudos Costeiros (IECOS) Universidade Federal do Pará (UFPA), Bragança, PA, Brazil; Laboratório de Conservação da Biodiversidade e das Águas, Campus Bragança, Universidade Federal do Pará (UFPA), Bragança, PA, Brazil.
| | - Daniel Nobre Nunes Silva
- Laboratório de Ciência e Engenharia de Petróleo (LCPetro), Campus Salinópolis, Universidade Federal do Pará (UFPA), Salinópolis, PA, Brazil.
| | - Marcus Emanuel Barroncas Fernandes
- Programa de Pós-Graduação em Biologia Ambiental, Instituto de Estudos Costeiros (IECOS) Universidade Federal do Pará (UFPA), Bragança, PA, Brazil; Laboratório de Ecologia de Manguezal (LAMA), Universidade Federal do Pará (UFPA), Bragança, PA, Brazil.
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22
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Liu L, Wang Z, Ye Y, Qi K. Effects of agricultural land types on microplastic abundance: A nationwide meta-analysis in China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 892:164400. [PMID: 37245800 DOI: 10.1016/j.scitotenv.2023.164400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 04/28/2023] [Accepted: 05/20/2023] [Indexed: 05/30/2023]
Abstract
Microplastics (MPs) accumulation in agricultural land that possibly poses threats to food security and human health has recently attracted increasing attention. Land use type probably is a key factor that drives the contamination level of soil MPs. Nevertheless, few studies have performed large-scale systematic analysis of the effects in different agricultural land soils on the MPs abundance. In this study, we constructed a national MPs dataset comprising 321 observations from 28 articles, summarised the current status of microplastic pollution in five agricultural land types in China through meta-analysis, and investigated the effects and key factors of agricultural land types on microplastic abundance. The results showed that among the existing soil microplastic research, vegetable soils maintained a higher environmental exposure distribution than other agricultural lands, and with the most common trend being vegetable land > orchard land > cropland > grassland. By combining agricultural practices, demographic economic factors and geographical factors, a potential impact identification method based on subgroup analysis was established. The findings demonstrated that agricultural film mulch significantly increased soil MPs abundance, especially in orchards. Increased population and economy (carbon emissions and PM2.5 concentrations) add MPs abundance in all kinds of agricultural lands. And the significant changes of effect sizes in high-latitude and mid-altitude areas suggested that geographical space differences exerted a certain degree of impact on the soil distribution of MPs. By the proposed method, different levels of MPs risk areas in agricultural soils can be more reasonably and effectively identified, which will provide type-specific policies technical and theoretical support for the precise management of MPs in agricultural land soils.
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Affiliation(s)
- Lijuan Liu
- Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Tianshui South Road 222, Lanzhou, Gansu 730000, China
| | - Zhaowei Wang
- Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Tianshui South Road 222, Lanzhou, Gansu 730000, China.
| | - Yuping Ye
- Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Tianshui South Road 222, Lanzhou, Gansu 730000, China
| | - Kemin Qi
- Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Tianshui South Road 222, Lanzhou, Gansu 730000, China
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23
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Rigi N, Zare R, Kor K. Occurrence and spatial distribution of microplastics in the intertidal sediments along the Oman Sea. MARINE POLLUTION BULLETIN 2023; 194:115360. [PMID: 37544063 DOI: 10.1016/j.marpolbul.2023.115360] [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: 06/12/2023] [Revised: 07/13/2023] [Accepted: 07/30/2023] [Indexed: 08/08/2023]
Abstract
Microplastics (MPs) have been found in marine systems more frequently. We aim to analyze the MPs abundances, distribution, and characteristics in the intertidal sediments along the Oman Sea. Samples were collected from 7 locations with three replicates. Density separation was used to extract MPs, which were then visually counted and categorized based on their size, shape, and color. MPs abundance ranged between 219.6 ± 38.3 particles.kg-1dw and 617.3 ± 99.9 particles.kg-1dw with a mean abundance of 315.4 ± 24.4 particles.kg-1 dw. Fragments and fibers were the dominant shapes. Red and blue colors were observed in 61.6 % of the collected MPs. In addition, 100-500 μm size range of MPs were more abundant. Micro-Raman spectroscopy analysis revealed polypropylene was the major polymer constituent. The present study revealed the widespread occurrence of MPs as anthropogenic pollutants throughout the Oman Sea and highlighted the urgent need for regulations and policies to reduce the entry of this material into marine environments.
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Affiliation(s)
- Navid Rigi
- Department of Marine Biology, Faculty of Marine Science, Chabahar Maritime University, Chabahar, Iran
| | - Rouhollah Zare
- Department of Marine Biology, Faculty of Marine Science, Chabahar Maritime University, Chabahar, Iran
| | - Kamalodin Kor
- Iranian National Institute for Oceanography and Atmospheric Science (INIOAS), Tehran, Iran.
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24
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Li K, Su H, Xiu X, Liu C, Hao W. Tire wear particles in different water environments: occurrence, behavior, and biological effects-a review and perspectives. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:90574-90594. [PMID: 37481496 DOI: 10.1007/s11356-023-28899-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 07/17/2023] [Indexed: 07/24/2023]
Abstract
As an important source of microplastics, the water ecological risk of tire wear particles (TWPs) has attracted widespread attention worldwide. However, the occurrence and behavior of TWPs and their biological effects in water environments have not been clearly analyzed. For example, most contemporary studies have focused on the evaluation of the aquatic toxicity of TWPs leachate, and little attention has been paid to the behavior process and potential risks of its surface properties in water environments. In addition, most studies rely on preparing TWPs under laboratory conditions or purchasing commercial TWPs for studying their water environmental behavior or exposure. These obviously cannot meet the requirements of accurate assessment of water ecological risks of TWPs. As thus, in addition to describing the occurrence, distribution, and (aging) transformation of TWPs in different water environments, we further tried to explain the potential water environment behavior process and multiple pathways leading to potential adverse impacts of TWPs on aquatic organisms from the perspectives of particle self-toxicity and release toxicity, as well as synergistic effects of TWPs and other substances are also discussed. The existing data, such as studies on the self-characteristics of TWPs, environmental factors, and subjects, are insufficient to comprehensively evaluate the recent changes in essential water ecosystem services and multifunctions caused by TWPs, implying that the impact of TWPs on water environmental health needs to be further evaluated, and the corresponding countermeasures should be recommended. In this context, the current review provides an outlook on future research on TWPs in aquatic environments.
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Affiliation(s)
- Kun Li
- School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing, 210044, China.
- Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Nanjing, China.
| | - Han Su
- Changwang School of Honors, Nanjing University of Information Science and Technology, Nanjing, 210044, China
| | - Xiaojia Xiu
- Changwang School of Honors, Nanjing University of Information Science and Technology, Nanjing, 210044, China
| | - Chi Liu
- School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing, 210044, China
- Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Nanjing, China
| | - Wanqi Hao
- School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing, 210044, China
- Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Nanjing, China
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25
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Gao S, Wu Q, Peng M, Zeng J, Jiang T, Ruan Y, Xu L, Guo K. Rapid urbanization affects microplastic communities in lake sediments: A case study of Lake Aha in southwest China. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 338:117824. [PMID: 37004481 DOI: 10.1016/j.jenvman.2023.117824] [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: 01/07/2023] [Revised: 03/06/2023] [Accepted: 03/26/2023] [Indexed: 06/19/2023]
Abstract
Effective management of pollutants in urban environments is crucial for achieving sustainable cities. Microplastics, as an emerging pollutant widely present in contemporary environments, have received widespread attention in recent years. However, limited studies have reported the impact of rapid urbanization on regional microplastics. In this study, the abundance and composition of microplastic communities in the sediments of Lake Aha were analyzed using a "microplastic community" and slicing the sediments at 5 cm intervals. Results showed that microplastic abundance of sediments in Lake Aha was relatively high (up to 1700 items/kg) and decreased with increasing depth, with the highest abundance found in the surface layer (0-5 cm, 1090 ± 474 items/kg). Hierarchical cluster analysis (HCA), principal component analysis (PCA), and analysis of similarities (ANOSIM) revealed that the different sediment layers could be classified into high and low urbanization level groups based on the composition of microplastic communities. Linear discriminant analysis effect size (LEfSe) indicated that agricultural input was the main source of microplastic pollution during low urbanization levels, characterized by low abundance, large particle size, and high fiber proportion, while urban activities dominated during high urbanization levels, with high abundance, small particle size, high proportion of Polyethylene terephthalate (PET), fragments, and granules, and colorful microplastics. This study clarifies the impact of urbanization on the abundance and composition of microplastics in lake sediments, which has implications for more effective management and control of microplastic pollution in regions undergoing rapid urbanization.
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Affiliation(s)
- Shilin Gao
- College of Resources and Environmental Engineering, Guizhou University, Guiyang, Guizhou, 550025, China; Key Laboratory of Karst Geological Resources and Environment, Guizhou University, Ministry of Education, Guiyang, Guizhou, 550025, China
| | - Qixin Wu
- College of Resources and Environmental Engineering, Guizhou University, Guiyang, Guizhou, 550025, China; Key Laboratory of Karst Geological Resources and Environment, Guizhou University, Ministry of Education, Guiyang, Guizhou, 550025, China.
| | - Meixue Peng
- College of Resources and Environmental Engineering, Guizhou University, Guiyang, Guizhou, 550025, China; Key Laboratory of Karst Geological Resources and Environment, Guizhou University, Ministry of Education, Guiyang, Guizhou, 550025, China
| | - Jie Zeng
- College of Resources and Environmental Engineering, Guizhou University, Guiyang, Guizhou, 550025, China; Key Laboratory of Karst Geological Resources and Environment, Guizhou University, Ministry of Education, Guiyang, Guizhou, 550025, China
| | - Tingting Jiang
- College of Resources and Environmental Engineering, Guizhou University, Guiyang, Guizhou, 550025, China; Key Laboratory of Karst Geological Resources and Environment, Guizhou University, Ministry of Education, Guiyang, Guizhou, 550025, China
| | - Yunjun Ruan
- College of Bigdata and Information Engineering, Guizhou University, Guiyang, Guizhou, 550025, China
| | - Li Xu
- Beijing Research Center for Agricultural Standards and Testing, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Ke Guo
- Guiyang Research Academy of Eco-Environmental Science, Guiyang, Guizhou, 550025, China
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26
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Tajwar M, Hasan M, Shreya SS, Rahman M, Sakib N, Gazi MY. Risk assessment of microplastic pollution in an industrial region of Bangladesh. Heliyon 2023; 9:e17949. [PMID: 37483706 PMCID: PMC10359874 DOI: 10.1016/j.heliyon.2023.e17949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 07/01/2023] [Accepted: 07/03/2023] [Indexed: 07/25/2023] Open
Abstract
Despite the high potential for microplastics (MPs) pollution in Bangladesh, the presence of MPs in the industrial region has largely been unexplored in Bangladesh. So, this study was conducted to determine whether MP pollution is prevalent in the industrial soil of Bangladesh and the extent of its toxicity. To examine MPs, a total of 12 soil samples were collected from the industrial region of Narayanganj, and a stereoscopic microscope was used to visually identify the MPs. Prior to that the technique of density separation and sieving was applied to extract MPs from those 12 soil samples. Among the twelve investigated samples, a total of 151 MPs (Mean: 12.6 ± 7.9 particles kg-1) were identified, which were mostly white and ranged in size from 0.5 to 1 mm. Different types of MPs according to their shapes such as fibers (60.3%), fragments (19.2%), films (10.6%), and foam (9.9%) have been detected. 7 MPs (Mean: 0.58 ± 0.79) have been found in 3 urban farmland sites, 15 MPs (Mean: 1.87 ± 1.81) in two near metropolitan areas, and 129 MPs (Mean: 4.6 ± 4.39) in 7 industrial locations. Five polymers were identified by μ-FTIR, among which Polyamide predominated, followed by Polypropylene. According to risk assessments, the region falls under hazard categories II and III, suggesting a moderate to high risk. This paper gives thorough information on the toxicity of MP in an industrial location; therefore, it may be useful in the development of effective methods to address environmental issues.
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Affiliation(s)
- Mahir Tajwar
- Department of Geology, University of Dhaka, Dhaka, 1000, Bangladesh
| | - Mahmudul Hasan
- Department of Oceanography, University of Dhaka, Dhaka, 1000, Bangladesh
| | | | - Mahfuzur Rahman
- Department of Oceanography, Noakhali Science and Technology University, Noakhali, 3814, Bangladesh
| | - Nazmus Sakib
- Bangladesh Water Development Board, Dhaka, 1215, Bangladesh
| | - Md Yousuf Gazi
- Department of Geology, University of Dhaka, Dhaka, 1000, Bangladesh
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27
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Nithin A, Sundaramanickam A, Saha M, Hassanshahian M, Thangaraj M, Rathore C. Risk assessments of microplastics accumulated in estuarine sediments at Cuddalore, Tamil Nadu, southeast coast of India. ENVIRONMENTAL MONITORING AND ASSESSMENT 2023; 195:890. [PMID: 37365443 DOI: 10.1007/s10661-023-11434-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 05/29/2023] [Indexed: 06/28/2023]
Abstract
In this study, the abundance of microplastics (MPs) in the Uppanar and Gadilam estuaries in Cuddalore, on the southeast coast of India, is reported. In the estuarine sediments, MP abundance ranged from 36.3 ± 3.39 to 51.6 ± 2.05 particles/Kg dw. Different types of MP shapes, such as fibers (41.7-47.9%), films (21.2-27.2%), and fragments (18.3-25.5%) were observed in the size range of 100-1000 µm. Diverse colours of MPs were observed, among which red (30.1-34.5%) was predominantly noticed in the estuarine sediments. Six polymers were identified by µ-FTIR, among which LDPE (39%) and PP (35%) were dominant. MPs pollution in these estuaries is composed of domestic, industrial, and fishing wastes. Risk assessments show that the area falls under hazard categories I to III, indicating low to high risk. This study improves knowledge on MPs contamination in Uppanar and Gadilam estuaries and provides impetus for further research to identify the actual sources and impacts of MPs on aquatic systems along the east coast of India.
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Affiliation(s)
- Ajith Nithin
- Centre of Advance Study in Marine Biology, Annamalai University, Parangipettai, 608 502, Tamil Nadu, India
| | - Arumugam Sundaramanickam
- Centre of Advance Study in Marine Biology, Annamalai University, Parangipettai, 608 502, Tamil Nadu, India.
| | - Mahua Saha
- CSIR- National Institute of Oceanography, Goa, 403004, India
| | - Mehdi Hassanshahian
- Department of Biology, Faculty of Sciences, Shahid Bahonar University of Kerman, Kerman, Iran
| | - Muthusamy Thangaraj
- Centre of Advance Study in Marine Biology, Annamalai University, Parangipettai, 608 502, Tamil Nadu, India
| | - Chayanika Rathore
- CSIR- National Institute of Oceanography, Goa, 403004, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, Uttar Pradesh, India
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28
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Shelciya S, Glen Esmeralda V, Patterson J. Preliminary Study on the Role of Mangroves in Entrapping Microplastics in Tuticorin Coast of Gulf of Mannar, Southeast Coast of India. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2023:10.1007/s00244-023-01007-z. [PMID: 37284885 DOI: 10.1007/s00244-023-01007-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 05/15/2023] [Indexed: 06/08/2023]
Abstract
Mangroves constitute a unique and important type of coastal wetlands in tropical and subtropical zones worldwide. The abundance of microplastics (MPs) in the mangrove sediments is poorly understood. This study aimed to quantify the role of mangrove root systems in effectively entrapping MPs in the mangrove areas of Tuticorin and Punnakayal Estuary. It investigated the abundance, characteristics, and weathering patterns of MPs in different mangrove sediments. Sediment samples were collected from ten mangrove sites and two control sites without mangroves. Microplastics were extracted from mangrove sediments by density separation method, and then counted and categorized according to their shape, size, and colour. Microplastics were identified in all ten sampling sites. Punnakayal Estuary has a greater MPs concentration (27 ± 2.65 items/kg dw) than Tuticorin (9.33 ± 2.52 items/kg dw). Also, microplastic concentrations are higher in the mangrove sites than in the control sites. Most MPs are fibres with size ranges of 1-2 mm and 2-3 mm dominating. Blue and transparent are the predominant colours. Four polymers were identified, namely polyethylene (PE), polypropylene (PP), polymethyl methaacrylate (PMMA), and polyurethane (PUR). The degree of weathering was confirmed by carbonyl index and the values vary between 0.28 and 1.25 for PE and 0.6 and 1.05 for PP.
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Affiliation(s)
- S Shelciya
- Suganthi Devadason Marine Research Institute, Tuticorin, Tamil Nadu, India
- Manonmaniam Sundaranar University, Abishekapatti, Tirunelveli, Tamil Nadu, India
| | - V Glen Esmeralda
- Suganthi Devadason Marine Research Institute, Tuticorin, Tamil Nadu, India
- Manonmaniam Sundaranar University, Abishekapatti, Tirunelveli, Tamil Nadu, India
| | - Jamila Patterson
- Suganthi Devadason Marine Research Institute, Tuticorin, Tamil Nadu, India.
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29
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Osten JRV, Benítez-Torres JA, Rojas-González RI, Morgado F, Borges-Ramírez MM. Microplastics in sediments from the southern Gulf of Mexico: Abundance, distribution, composition, and adhered pollutants. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 873:162290. [PMID: 36804972 DOI: 10.1016/j.scitotenv.2023.162290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 02/13/2023] [Accepted: 02/13/2023] [Indexed: 06/18/2023]
Abstract
Approximately 23 Mt of plastics reaches the ocean each year, fragmented into microplastics (MP). MPs are widely dispersed in the sea, becoming deposited in sediments. MPs are considered carriers of pollutants such as heavy metals and polycyclic aromatic hydrocarbons and, when ingested by biota, pose a high health risk. This study determined metals and PAHs in sedimentary microplastics from the southern Gulf of Mexico (GOM). One hundred twenty-four sediment samples were collected, covering an area of 26,220 km2. The mean (±SD) of MPs in sediments was 16.46 ± 17.76 MPs/kg. The most abundant polymers were cellophane (CE), polyvinylidene fluoride (PVDF), polyethylene (PE), polyamides (PA), and nylon (NYL). A strong correlation (r: 0.83) was found between MP density and sediment depth. PA and PE were found near shorelines and PVDF near oil platforms. Aluminum, arsenic, and tin had the highest concentration (89.6 ± 94.6, 23.1 ± 70.3, and 19 ± 29.2 μg g-1, respectively), and acenaphthylene was the PAH with the highest concentration (3.4 ± 12.6 μg g-1). This study shows that MP with a higher density is found at greater depths, and this research is one of the first to cover a large area of the Gulf of Mexico.
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Affiliation(s)
- Jaime Rendón-von Osten
- Instituto de Ecología, Pesquería y Oceanografía del Golfo de México (EPOMEX), Universidad Autónoma de Campeche, Campus VI, Av. Héroe de Nacozari 480, CP 24070, Campeche, Campeche, Mexico.
| | - Jorge A Benítez-Torres
- Ecología Aplicada del Sureste A.C. (EASAC), Andador Caracol 1, Fraccionamiento Lavalle Urbina, CP 24087, Campeche, Campeche, Mexico.
| | - R Isaac Rojas-González
- Dirección de Investigación Pesquera en el Atlántico, Instituto Nacional de Pesca y Acuacultura, Av. México 190 Col Del Carmen, C.P. 04100, Coyoacán, Ciudad de México, Mexico.
| | - Fernando Morgado
- CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal.
| | - Merle M Borges-Ramírez
- Instituto de Ecología, Pesquería y Oceanografía del Golfo de México (EPOMEX), Universidad Autónoma de Campeche, Campus VI, Av. Héroe de Nacozari 480, CP 24070, Campeche, Campeche, Mexico; El Colegio de la Frontera Sur (ECOSUR), Avenida Rancho, Polígono 2-A, Ciudad Industrial Lerma, CP 24500, Campeche, Campeche, Mexico.
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30
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Zheng X, Sun R, Dai Z, He L, Li C. Distribution and risk assessment of microplastics in typical ecosystems in the South China Sea. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 883:163678. [PMID: 37100141 DOI: 10.1016/j.scitotenv.2023.163678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 04/04/2023] [Accepted: 04/19/2023] [Indexed: 05/05/2023]
Abstract
Microplastic pollution in the marine environment has attracted worldwide attention. The South China Sea is considered a hotspot for microplastic pollution due to the developed industries and high population density around the South China Sea. The accumulation of microplastics in ecosystems can adversely affect the health of the environment and organisms. This paper reviews the recent microplastic studies conducted in the South China Sea, which novelty summarizes the abundance, types, and potential hazards of microplastics in coral reef ecosystems, mangrove ecosystems, seagrass bed ecosystems, and macroalgal ecosystems. A summary of the microplastic pollution status of four ecosystems and a risk assessment provides a more comprehensive understanding of the impact of microplastic pollution on marine ecosystems in the South China Sea. Microplastic abundances of up to 45,200 items/m3 were reported in coral reef surface waters, 5738.3 items/kg in mangrove sediments, and 927.3 items/kg in seagrass bed sediments. There are few studies of microplastics in the South China Sea macroalgae ecosystems. However, studies from other areas indicate that macroalgae can accumulate microplastics and are more likely to enter the food chain or be consumed by humans. Finally, this paper compared the current risk levels of microplastics in the coral reef, mangrove, and seagrass bed ecosystems based on available studies. Pollution load index (PLI) ranges from 3 to 31 in mangrove ecosystems, 5.7 to 11.9 in seagrass bed ecosystems, and 6.1 to 10.2 in coral reef ecosystems, respectively. The PLI index varies considerably between mangroves depending on the intensity of anthropogenic activity around the mangrove. Further studies on seagrass beds and macroalgal ecosystems are required to extend our understanding of microplastic pollution in marine environments. Recent microplastic detection in fish muscle tissue in mangroves requires more research to further the biological impact of microplastic ingestion and the potential food safety risks.
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Affiliation(s)
- Xuanjing Zheng
- Shenzhen Institute of Guangdong Ocean University, Shenzhen 518108, China; School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, China
| | - Ruikun Sun
- School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, China
| | - Zhenqing Dai
- Shenzhen Institute of Guangdong Ocean University, Shenzhen 518108, China.
| | - Lei He
- School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, China
| | - Chengyong Li
- Shenzhen Institute of Guangdong Ocean University, Shenzhen 518108, China; School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, China.
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31
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Nawab J, Khan H, Ghani J, Zafar MI, Khan S, Toller S, Fatima L, Hamza A. New insights into the migration, distribution and accumulation of micro-plastic in marine environment: A critical mechanism review. CHEMOSPHERE 2023; 330:138572. [PMID: 37088212 DOI: 10.1016/j.chemosphere.2023.138572] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Revised: 03/18/2023] [Accepted: 03/31/2023] [Indexed: 05/03/2023]
Abstract
Microplastics (MPs) are widely distributed in the marine environment, posing a significant threat to marine biota. The contribution of anthropogenic and terrestrial sources to the aquatic ecosystem has led to an increase in MPs findings, and their abundance in aquatic biota has been reported to be of concern. MPs are formed mainly via photo degradation of macroplastics (large plastic debris), and their release into the environment is a result of the degradation of additives. Eco-toxicological risks are increasing for marine organisms, due to the ingestion of MPs, which cause damage to gastrointestinal (GI) tracts and stomach. Plastics with a size <5 mm are considered MPs, and they are commonly identified by Raman spectroscopy, Fourier transfer infrared (FTIR) spectroscopy, and Laser direct infrared (LDIR). The size, density and additives are the main factors influencing the abundance and bioavailability of MPs. The most abundant type of MPs found in fishes are fiber, polystyrenes, and fragments. These microscale pellets cause physiological stress and growth deformities by targeting the GI tracts of fishes and other biota. Approximately 80% MPs come from terrestrial sources, either primary, generated during different products such as skin care products, tires production and the use of MPs as carrier for pharmaceutical products, or secondary plastics, disposed of near coastal areas and water bodies. The issue of MPs and their potential effects on the marine ecosystem require proper attention. Therefore, this study conducted an extensive literature review on assessing MPs levels in fishes, sediments, seawater, their sources, and effects on marine biota (especially on fishes), chemo-physical behavior and the techniques used for their identification.
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Affiliation(s)
- Javed Nawab
- Department of Environmental Sciences, Kohat University of Science & Technology, Kohat, Pakistan.
| | - Haris Khan
- Department of Environmental Sciences, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, 45320, Pakistan
| | - Junaid Ghani
- Department of Biological, Geological and Environmental Sciences, Alma Mater Studiorum University of Bologna, 40126, Bologna, Italy
| | - Mazhar Iqbal Zafar
- Department of Environmental Sciences, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, 45320, Pakistan
| | - Sardar Khan
- Department of Environmental Sciences, Kohat University of Science & Technology, Kohat, Pakistan; Department of Environmental Sciences, University of Peshawar, Peshawar, 25120, Pakistan
| | - Simone Toller
- Department of Biological, Geological and Environmental Sciences, Alma Mater Studiorum University of Bologna, 40126, Bologna, Italy
| | - Laraib Fatima
- Department of Environmental Sciences, Abdul Wali Khan University, Mardan, 2300, Pakistan
| | - Amir Hamza
- Department of Soil & Environmental Sciences, The University of Agriculture Peshawar, Peshawar, Pakistan
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Nawar N, Rahman MM, Chowdhury FN, Marzia S, Ali MM, Akbor MA, Siddique MAB, Khatun MA, Shahjalal M, Huque R, Malafaia G. Characterization of microplastic pollution in the Pasur river of the Sundarbans ecosystem (Bangladesh) with emphasis on water, sediments, and fish. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 868:161704. [PMID: 36682548 DOI: 10.1016/j.scitotenv.2023.161704] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 01/03/2023] [Accepted: 01/15/2023] [Indexed: 06/17/2023]
Abstract
An emerging concern of today's world, due to their universal dispersion worldwide, is the environment's microplastic pollution. The Sundarbans, the world's largest mangrove, have unique and dynamic environmental settings with numerous pollution risk exposures, including microplastics (MPs). Thus, the present study has focused on the MP pollution in water, sediment, and fish samples of the Sundarbans of Bangladesh for the first time. Water and sediment samples were collected (n = 30/each) from sampling locations along the Pasur river (Bangladesh). Furthermore, nine species of fish samples were collected from a local fish market situated at the Mongla port. Results show that 100 % of the analyzed samples have evidence of MPs. On average, 2.66 × 103 plastic particles/L and 1.57 × 105 particles/kg were found in water and sediment samples, respectively. Furthermore, results show a higher number of MPs in the animals' gastrointestinal tract (GIT) (10.41 particles/g), concerning the average concentration recorded in the muscles (4.68 particles/g). O. pama and H. nehereus were the species that showed the highest MPs accumulation in the GIT. In the muscles, the highest MP levels were observed in T. ilisha and L. calcarifer. Most of the particles were smaller than 1 mm; black-colored particles dominated the pool. FT-IR analysis revealed the presence of seven polymer types where polyamide was abundant in water and sediment samples. SEM analysis showed morphological structures and adsorbed particles on the surface of plastic samples, and the spatial distribution of MPs indicates that the location with high human intervention has elevated levels of MPs. Therefore, our study demonstrates that Sundarbans mangrove forests are highly contaminated with MPs and that its fisheries can be a potential source of human exposure to these pollutants.
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Affiliation(s)
- Nowshin Nawar
- Department of Environmental Science, Bangladesh University of Professionals, Dhaka 1216, Bangladesh
| | - Md Mostafizur Rahman
- Department of Environmental Science, Bangladesh University of Professionals, Dhaka 1216, Bangladesh; Laboratory of Environmental Health and Ecotoxicology, Department of Environmental Sciences, Jahangirnagar University, Dhaka 1342, Bangladesh.
| | - Farah Noshin Chowdhury
- Laboratory of Environmental Health and Ecotoxicology, Department of Environmental Sciences, Jahangirnagar University, Dhaka 1342, Bangladesh
| | - Shumayta Marzia
- Department of Environmental Science, Bangladesh University of Professionals, Dhaka 1216, Bangladesh
| | - Mir Mohammad Ali
- Department of Aquaculture, Sher-e-Bangla Agricultural University, Dhaka 1207, Bangladesh
| | - Md Ahedul Akbor
- Institute of National Analytical Research and Service (INARS), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhanmondi, Dhaka 1205, Bangladesh
| | - Md Abu Bakar Siddique
- Institute of National Analytical Research and Service (INARS), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhanmondi, Dhaka 1205, Bangladesh
| | - Mst Afifa Khatun
- Food Safety and Quality analysis Division, Institute of Food and Radiation Biology, Bangladesh Atomic Energy Commission, Savar, Dhaka, Bangladesh
| | - Md Shahjalal
- Food Safety and Quality analysis Division, Institute of Food and Radiation Biology, Bangladesh Atomic Energy Commission, Savar, Dhaka, Bangladesh
| | - Roksana Huque
- Food Safety and Quality analysis Division, Institute of Food and Radiation Biology, Bangladesh Atomic Energy Commission, Savar, Dhaka, Bangladesh
| | - Guilherme Malafaia
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute, Urutaí, GO, Brazil; 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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Kor K, Jannat B, Ershadifar H, Ghazilou A. Microplastic occurrence in finfish and shellfish from the mangroves of the northern Gulf of Oman. MARINE POLLUTION BULLETIN 2023; 189:114788. [PMID: 36871342 DOI: 10.1016/j.marpolbul.2023.114788] [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: 12/30/2022] [Revised: 02/20/2023] [Accepted: 02/24/2023] [Indexed: 06/18/2023]
Abstract
This study was conducted to assess microplastic (MP) pollution in some aquatic animals inhabiting planted and natural mangrove swamps in the northern Gulf of Oman. The KOH-NaI solution was used to retrieve MPs from the gastrointestinal tracts of animals. The highest MP prevalence was recorded in crabs (41.65 %) followed by fish (33.89 %) and oysters (20.8 %). The abundance of MPs in examined animals varied from zero in Sphyraena putnamae to 11 particles in a Rhinoptera javanica specimen. When polluted-only animals were considered, the mean abundance of MPs significantly varied among species and between locations. The mean density of ingested MPs was higher in the planted mangrove animals (1.79 ± 2.89 vs. 1.21 ± 2.25 n/individual; mean ± SD). Among the examined fish species, R. javanica ingested the highest number of MPs (3.83 ± 3.93 n/individual; mean ± SD). The polyethylene/ polypropylene fragments or fibers of average 1900 μm size were recorded as predominant (>50 % occurrence) MP particles.
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Affiliation(s)
- Kamalodin Kor
- Iranian National Institute for Oceanography and Atmospheric Science (INIOAS), Tehran, Iran
| | - Behrooz Jannat
- Halal Research Center of IRI, Food and Drug Administration, Ministry of Health and Medical Education, Tehran, Iran
| | - Hamid Ershadifar
- Iranian National Institute for Oceanography and Atmospheric Science (INIOAS), Tehran, Iran
| | - Amir Ghazilou
- Iranian National Institute for Oceanography and Atmospheric Science (INIOAS), Tehran, Iran.
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Wang Y, Jiao M, Li T, Li R, Liu B. Role of mangrove forest in interception of microplastics (MPs): Challenges, progress, and prospects. JOURNAL OF HAZARDOUS MATERIALS 2023; 445:130636. [PMID: 37056008 DOI: 10.1016/j.jhazmat.2022.130636] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 12/04/2022] [Accepted: 12/18/2022] [Indexed: 06/19/2023]
Abstract
Mangroves receive microplastics (MPs) from terrestrial, marine and atmospheric sources, acting as a huge filter for environmental MPs between land and sea. Due to the high primary production and complex hydrodynamic conditions in mangroves, MPs are extensively intercepted in various ways while flowing through mangroves, leading to a long-standing but fiercely increasing MPs accumulation. However, current researches mainly focused on the occurrence, source and fate of MPs pollution in mangroves, ignoring the role of mangrove forests in the interception of MPs. Our study firstly demonstrates that mangrove ecosystems have significantly greater MPs interception capacity than their surrounding environments. Then, the current status of studies related to the interception of MPs in mangrove ecosystems is comprehensively reviewed, with the main focus on the interception process and mechanisms. At last, the most pressing shortcomings of current research are highlighted regarding the intercepted flux, interception mechanisms, retention time and ecological risks of MPs in mangrove ecosystems and the relevant future perspectives are provided. This review is expected to emphasize the critical role of mangrove forests in the interception of MPs and provide the foundational knowledge for evaluating the MPs interception effect of mangrove forests globally.
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Affiliation(s)
- Yijin Wang
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China; School of Marine Sciences, Guangxi University, Nanning 530004, China
| | - Meng Jiao
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China; School of Marine Sciences, Guangxi University, Nanning 530004, China
| | - Tiezhu Li
- School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
| | - Ruilong Li
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China.
| | - Beibei Liu
- Environmental and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China.
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Silori R, Shrivastava V, Mazumder P, Mootapally C, Pandey A, Kumar M. Understanding the underestimated: Occurrence, distribution, and interactions of microplastics in the sediment and soil of China, India, and Japan. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 320:120978. [PMID: 36586556 DOI: 10.1016/j.envpol.2022.120978] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 12/26/2022] [Accepted: 12/28/2022] [Indexed: 06/17/2023]
Abstract
Microplastics (MPs) are non-biodegradable substances that can sustain our environment for up to a century. What is more worrying is the incapability of modern technologies to annihilate MPs from om environment. One ramification of MPs is their impact on every kind of life form on this planet, which has been discussed ahead; that is why these substances are surfacing in everyday discussions of scholars and researchers. This paper discusses the overview of the global occurrence, abundance, analysis, and remediation techniques of MPs in the environment. This paper primarily reviews the event and abundance of MPs in coastal sediments and agricultural soil of three major Asian countries, India, China, and Japan. A significant concentration of MPs has been recorded from these countries, which affirms its strong presence and subsequent environmental impacts. Concentrations such as 73,100 MPs/kg in Indian coastal sediments and 42,960 particles/kg in the agricultural soil of China is a solid testimony to prove their massive outbreak in our environment and require urgent attention towards this issue. Conclusions show that human activities, rivers, and plastic mulching on agricultural fields have majorly acted as carriers of MPs towards coastal and terrestrial soil and sediments. Later, based on recorded concentrations and gaps, future research studies are recommended in the concerned domain; a dearth of studies on MPs influencing Indian agricultural soil make a whole sector and its consumer vulnerable to the adverse effects of this emerging contaminant.
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Affiliation(s)
- Rahul Silori
- School of Engineering, University of Petroleum & Energy Studies, Dehradun, Uttarakhand, 248007, India
| | - Vikalp Shrivastava
- School of Engineering, University of Petroleum & Energy Studies, Dehradun, Uttarakhand, 248007, India
| | - Payal Mazumder
- School of Engineering, University of Petroleum & Energy Studies, Dehradun, Uttarakhand, 248007, India
| | - Chandrashekar Mootapally
- School of Applied Sciences & Technology (SAST), Gujarat Technological University (GTU), Ahmedabad, Gujarat, India
| | - Ashok Pandey
- School of Engineering, University of Petroleum & Energy Studies, Dehradun, Uttarakhand, 248007, India; Centre for Innovation and Translational Research, CSIR-Indian Institute of Toxicology Research, Lucknow, 226 001, India
| | - Manish Kumar
- School of Engineering, University of Petroleum & Energy Studies, Dehradun, Uttarakhand, 248007, India; Escuela de Ingeniería y Ciencias, Tecnologico de Monterrey, Campus Monterrey, Eugenio Garza Sada 2501 Sur, Monterrey, 64849, Mexico.
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Xu N, Zhu Z, Li S, Ouyang X, Zhu Q, Gao W, Cai Y, Yang Z. The role of bio-geomorphic feedbacks in shaping microplastic burial in blue carbon habitats. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 861:160220. [PMID: 36427713 DOI: 10.1016/j.scitotenv.2022.160220] [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: 09/16/2022] [Revised: 11/10/2022] [Accepted: 11/12/2022] [Indexed: 06/16/2023]
Abstract
Coastal sediments are considered as hotspots of microplastics (MPs), with substantial MPs stocks found in blue carbon habitats such as mangroves and tidal marshes, where wave-damping vegetation reduces sediment erosion and enhances accretion. Here, we examined the effects of such bio-geomorphic feedbacks in shaping MPs burial, through a year-round field study in a mangrove habitat along the coast of South China. The results revealed that MPs abundance decreased significantly with the increase of cumulative sediment erosion as the strength of bio-geomorphic feedbacks declined. More shapes and colors of MPs were found at locations with weaker waves and less sediment erosion, where the average particle size was also higher. Our findings highlight the importance of bio-geomorphic feedbacks in affecting both the abundance and characteristics of the buried MPs. Such knowledge extends our understanding of MPs transport and burial from the perspective of bio-geomorphology, which is essential to assess and predict MPs accumulation patterns as well as its impacts on ecosystem functioning of the blue carbon habitats.
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Affiliation(s)
- Nanhao Xu
- Guangdong Provincial Key Laboratory of Water Quality Improvement and Ecological Restoration for Watersheds, Institute of Environmental and Ecological Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Zhenchang Zhu
- Guangdong Provincial Key Laboratory of Water Quality Improvement and Ecological Restoration for Watersheds, Institute of Environmental and Ecological Engineering, Guangdong University of Technology, Guangzhou 510006, China; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China.
| | - Shaorui Li
- Guangdong Provincial Key Laboratory of Water Quality Improvement and Ecological Restoration for Watersheds, Institute of Environmental and Ecological Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Xiaoguang Ouyang
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China
| | - Qin Zhu
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China
| | - Weilun Gao
- Guangdong Provincial Key Laboratory of Water Quality Improvement and Ecological Restoration for Watersheds, Institute of Environmental and Ecological Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Yanpeng Cai
- Guangdong Provincial Key Laboratory of Water Quality Improvement and Ecological Restoration for Watersheds, Institute of Environmental and Ecological Engineering, Guangdong University of Technology, Guangzhou 510006, China; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China
| | - Zhifeng Yang
- Guangdong Provincial Key Laboratory of Water Quality Improvement and Ecological Restoration for Watersheds, Institute of Environmental and Ecological Engineering, Guangdong University of Technology, Guangzhou 510006, China; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China
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Zhou Y, Jing J, Yu R, Zhao Y, Gou Y, Zhang Z, Tang H, Zhang H, Huang Y. Microplastics in plateau agricultural areas: Spatial changes reveal their source and distribution characteristics. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 319:121006. [PMID: 36610652 DOI: 10.1016/j.envpol.2023.121006] [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: 11/09/2022] [Revised: 12/16/2022] [Accepted: 01/02/2023] [Indexed: 06/17/2023]
Abstract
The Huangshui catchment on the northeastern Qinghai-Tibet Plateau (QTP) was selected as the study area to investigate the abundance, distribution characteristics, and influencing factors of microplastics (MPs) in surface agricultural soils (0-20 cm). The MP levels ranged from 6 to 444 items/kg, with an average of 86 items/kg. The relative abundance of small-sized MPs (<2 mm) was higher than that of large-sized MPs (2-5 mm). Polyethylene was the most common, and residual mulching film in farmland was the main source of MPs. The spatial distribution characteristics of MPs were analyzed through inverse distance weight interpolation, and MP abundance in agricultural soils in neighboring urban areas was significantly higher than that in other areas. Further analysis found that population density was significantly positively correlated with MP abundance (R2 = 0.9090, p < 0.01), indicating that human activities play a key role in MP pollution even in remote areas. In addition, the effects of irrigation, land use type, and soil physicochemical properties on the abundance of MPs were analyzed. Atmospheric transport and irrigation with surface water contribute to soil MP pollution. The direct effects of soil properties on MP abundance are still largely unclear, requiring further studies.
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Affiliation(s)
- Yang Zhou
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, PR China
| | - Jing Jing
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, PR China
| | - Ruyue Yu
- Key Laboratory of Agricultural Land Quality, Ministry of Natural Resources, Key Laboratory of Arable Land Conservation (North China), Ministry of Agriculture and Rural Affairs, College of Land Science and Technology, China Agricultural University, Beijing, 100193, PR China
| | - Yunze Zhao
- Key Laboratory of Agricultural Land Quality, Ministry of Natural Resources, Key Laboratory of Arable Land Conservation (North China), Ministry of Agriculture and Rural Affairs, College of Land Science and Technology, China Agricultural University, Beijing, 100193, PR China
| | - Yuxuan Gou
- Key Laboratory of Agricultural Land Quality, Ministry of Natural Resources, Key Laboratory of Arable Land Conservation (North China), Ministry of Agriculture and Rural Affairs, College of Land Science and Technology, China Agricultural University, Beijing, 100193, PR China
| | - Zhengyu Zhang
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, PR China
| | - Huaizhi Tang
- Key Laboratory of Agricultural Land Quality, Ministry of Natural Resources, Key Laboratory of Arable Land Conservation (North China), Ministry of Agriculture and Rural Affairs, College of Land Science and Technology, China Agricultural University, Beijing, 100193, PR China
| | - Hongyan Zhang
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, PR China.
| | - Yuanfang Huang
- Key Laboratory of Agricultural Land Quality, Ministry of Natural Resources, Key Laboratory of Arable Land Conservation (North China), Ministry of Agriculture and Rural Affairs, College of Land Science and Technology, China Agricultural University, Beijing, 100193, PR China
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Costa MBD, Otegui MBP, Zamprogno GC, Caniçali FB, Dos Reis Cozer C, Pelletier E, Graceli JB. Abundance, composition, and distribution of microplastics in intertidal sediment and soft tissues of four species of Bivalvia from Southeast Brazilian urban beaches. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 857:159352. [PMID: 36257412 DOI: 10.1016/j.scitotenv.2022.159352] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 10/06/2022] [Accepted: 10/07/2022] [Indexed: 06/16/2023]
Abstract
In coastal areas, microplastics (MPs) can deposit in sediment, allowing it to be ingested by benthic organisms, like mussels, thus creating a possible transfer to humans. The aim of this study is to evaluate MPs pollution in sediment as a function of shoreline elevation in two urbanized beaches and to evaluate the abundance/frequency of MPs in 4 different species of bivalves commonly used in the human diet, such as the oyster Crassostrea brasiliana, the mussels Mytella strigata and Perna perna and the clam Tivela mactroides, and identify the polymers via μ-FTIR technique. A total of 3337 MPs were found in this study, of which 1488 were found in the sediment at the five sites analyzed, and 1849 in the bivalve tissues at the two sampling sites. MPs contamination was observed in all sediment samples and species of the pool and in each of the 10 specimens of the four species. Thus, the frequency of contamination by MPs reached 100 % for the analyzed samples. The number of filaments is higher than fragments in sediment samples and in each bivalve species. Regarding types and colors, the blue were greater than fragment-type in sediments and samples. In an effort to classify the polymers via μ-FTIR, our study was able to identify polypropylene, polyethylene and polyethylene terephthalate, besides a great number of cellulose fibers.
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Affiliation(s)
- Mercia Barcellos da Costa
- Chemistry Department, Federal University of Espírito Santo, Av. Fernando Ferrari, 514, Goiabeiras, Vitória, 29075-910, ES, Brazil.
| | - Mariana Beatriz Paz Otegui
- Biological Sciences Department, Federal University of Espírito Santo, Av. Fernando Ferrari, 514, Vitória, Espírito Santo 29075-910, Brazil
| | - Gabriela Carvalho Zamprogno
- Biological Sciences Department, Federal University of Espírito Santo, Av. Fernando Ferrari, 514, Vitória, Espírito Santo 29075-910, Brazil
| | | | | | - Emilien Pelletier
- Institut des Sciences de la mer à Rimouski, UQAR, 310, Allée des Ursulines, Rimouski, QC, Canada
| | - Jones Bernardes Graceli
- Morphology Department, Federal University of Espírito Santo, Av. Marechal Campos, 1468, Vitória, Espírito Santo 290440-090, Brazil
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Yu L, Li R, Chai M, Li B. Vertical distribution, accumulation, and characteristics of microplastics in mangrove sediment in China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 856:159256. [PMID: 36208769 DOI: 10.1016/j.scitotenv.2022.159256] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 09/11/2022] [Accepted: 10/01/2022] [Indexed: 06/16/2023]
Abstract
Mangroves in tropical and subtropical regions worldwide are recognized as important sinks for microplastics (MPs). However, recent studies have focused on surface sediments, and in China, the vertical distribution and characteristics of MPs in mangrove sediments remain poorly understood. In this study, sediment cores of 100 cm depth were collected from six representative mangroves in China to investigate MPs via chronological analysis. Futian had the highest abundance of MPs (0-3123 n/kg), followed by Dongfang, Yunxiao, Zhanjiang, Dongzhaigang and Fangchenggang. The earliest MPs occurring in mangroves were dated back to 1955, and their abundance increased exponentially from bottom to surface sediments. MPs were mainly white in color, fiber-shaped, 1000-5000 μm in size, and of polypropylene/polyethylene polymer types. Furthermore, the MPs in the urban mangrove also showed a higher diversity in color. The results showed that the MP stocks in the urbanized Futian mangrove reached 1828 mg/m3, an order of magnitude higher than in other areas (251 ± 180 mg/m3), contributing to 0.0057 % of the carbon storage of the sediment. The abundance of MPs in mangrove sediments is expected to increase by 2.38-9.54 times by 2030, and therefore deserve further attention.
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Affiliation(s)
- Lingyun Yu
- School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Ruili Li
- School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen 518055, China.
| | - Minwei Chai
- School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Bing Li
- Water Research Center, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
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Gong X, Shi G, Zou D, Wu Z, Qin P, Yang Y, Hu X, Zhou L, Zhou Y. Micro- and nano-plastics pollution and its potential remediation pathway by phytoremediation. PLANTA 2023; 257:35. [PMID: 36624317 DOI: 10.1007/s00425-023-04069-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Accepted: 01/04/2023] [Indexed: 06/17/2023]
Abstract
This review proposed that phytoremediation could be applied for the decontamination of MPs/NPs. Micro- and nano-plastics (MPs < 5 mm; NPs < 100 nm) are emerging contaminants. Much of the recent concerns have focused on the investigation of their pollution and their potential eco-toxicity. Yet little review was available on the decontamination of MPs/NPs. Recently, the uptake of MPs/NPs by plants has been confirmed. Here, in view of the current knowledge, this review introduces MPs/NPs pollution and highlights the updated information about the interaction between MPs/NPs and plants. This review proposed that phytoremediation could be a potential possible way for the in situ remediation of MPs/NPs-contaminated environment. The possible mechanisms, influencing factors, and existing problems are summarized, and further research needs are proposed. This review herein provides new insights into the development of plant-based process for emerging pollutants decontamination, as well as the alleviation of MPs/NPs-induced toxicity to the ecosystem.
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Affiliation(s)
- Xiaomin Gong
- College of Resources and Environment, Hunan Agricultural University, Changsha, 410128, China.
- Key Laboratory for Rural Ecosystem Health in the Dongting Lake Area of Hunan Province, Changsha, 410128, China.
| | - Guanwei Shi
- College of Resources and Environment, Hunan Agricultural University, Changsha, 410128, China
- Key Laboratory for Rural Ecosystem Health in the Dongting Lake Area of Hunan Province, Changsha, 410128, China
| | - Dongsheng Zou
- College of Resources and Environment, Hunan Agricultural University, Changsha, 410128, China
- Key Laboratory for Rural Ecosystem Health in the Dongting Lake Area of Hunan Province, Changsha, 410128, China
| | - Zhibin Wu
- College of Resources and Environment, Hunan Agricultural University, Changsha, 410128, China
- Key Laboratory for Rural Ecosystem Health in the Dongting Lake Area of Hunan Province, Changsha, 410128, China
| | - Pufeng Qin
- College of Resources and Environment, Hunan Agricultural University, Changsha, 410128, China
| | - Yang Yang
- College of Resources and Environment, Hunan Agricultural University, Changsha, 410128, China
- Key Laboratory for Rural Ecosystem Health in the Dongting Lake Area of Hunan Province, Changsha, 410128, China
| | - Xi Hu
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, China
| | - Lu Zhou
- School of Hydraulic Engineering, Changsha University of Science and Technology, Changsha, 410114, China
| | - Yaoyu Zhou
- College of Resources and Environment, Hunan Agricultural University, Changsha, 410128, China
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41
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He S, Wei Y, Yang C, He Z. Interactions of microplastics and soil pollutants in soil-plant systems. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 315:120357. [PMID: 36220572 DOI: 10.1016/j.envpol.2022.120357] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 09/27/2022] [Accepted: 10/01/2022] [Indexed: 06/16/2023]
Abstract
In recent years, increasing studies have been reported on characterization and detection of microplastics (MPs), and their interactions with organic pollutants (OPs) and heavy metals (HMs) in soils. However, a comprehensive review on the characteristics and factors that influence MPs distribution in soils, the sorption characteristics and mechanisms of soil contaminants by MPs, especially the interactions of MPs and their complexes with pollutants in the soil-plant systems remains rarely available at present. This review focuses on the sorption features and mechanisms of pollutants by MPs in soil and discussed the effects of MPs and their complexing with pollutants on soil properties, microbe and plants. The polarity of MPs significantly influenced the sorption of OPs, and different sorption mechanisms are involved for the hydrophobic and hydrophilic OPs. The sorption of OPs on MPs in soils is different from that in water. Aging of MPs can promote the sorption and migration of contaminants. The enhanced effects of biofilm in microplastisphere on the sorption of pollutants by MPs are critical, and interactions of soil environment-MPs-microbe-HMs-antibiotics increase the potential pathogens and larger release of resistance genes. The coexistence of HMs and MPs affected the growth of plants and the uptake of HMs and MPs by the plants. Moreover, the type, dose, shape and particle size of MPs have important influences on their interactions with pollutants and subsequent effects on soil properties, microbial activities and plant growth. This review also pointed out some knowledge gaps and constructive countermeasures to promote future research in this field.
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Affiliation(s)
- Shanying He
- College of Environmental Science and Engineering, Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, Zhejiang Gongshang University, Hangzhou, Zhejiang, 310012, China.
| | - Yufei Wei
- College of Environmental Science and Engineering, Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, Zhejiang Gongshang University, Hangzhou, Zhejiang, 310012, China
| | - Chunping Yang
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Processes and Control, Key Laboratory of Petrochemical Pollution Control of Guangdong Higher Education Institutes, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong, 525000, China; College of Environmental Science and Engineering, Hunan University, and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministryof Education, Changsha, Hunan, 410082, China
| | - Zhenli He
- Department Soil and Water Sciences / Indian River Research and Education Center, Institute of Food and Agricultural Sciences, University of Florida, Fort Pierce, Florida, 34945, USA
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42
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Xiao X, Liu X, Mei T, Xu M, Lu Z, Dai H, Pi F, Wang J. Estimation of contamination level in microplastic-exposed crayfish by laser confocal micro-Raman imaging. Food Chem 2022; 397:133844. [PMID: 35932688 DOI: 10.1016/j.foodchem.2022.133844] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 07/24/2022] [Accepted: 07/31/2022] [Indexed: 11/29/2022]
Abstract
Crayfish is one of the most important freshwater aquaculture species in China. The potential risks of crayfish consumption caused by environmental microplastic pollution have attracted much attention. In this study, a total of 72 crayfish samples were exposed to the microplastic concentrations of 1 mg/L, 3 mg/L, and 9 mg/L for 7, 14, and 28 days, and microplastic contamination levels in crayfish were then explored by laser confocal micro-Raman (LCM-Raman) imaging and scanning electron microscope (SEM). LCM-Raman imaging showed better performance in microplastics identification. Besides, the average percentage of the contaminated area in visualized LCM-Raman images was used to quantitatively assess contamination levels. Following 28 days of exposure to 9 mg/L microplastics, microplastic accumulation reached about 13,000 particles per crayfish. The results confirmed that LCM-Raman imaging combined with image processing technology could be used to construct a high-performance analytical strategy for the assessment of microplastic contamination in crayfish.
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Affiliation(s)
- Xiaofeng Xiao
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, Hubei, People's Republic of China
| | - Xiaodan Liu
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, Hubei, People's Republic of China; Hubei Key Laboratory for Processing and Transformation of Agricultural Products (Wuhan Polytechnic University), Wuhan 430023, People's Republic of China
| | - Tingna Mei
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, Hubei, People's Republic of China
| | - Mengting Xu
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, Hubei, People's Republic of China
| | - Zelin Lu
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, Hubei, People's Republic of China
| | - Huang Dai
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, Hubei, People's Republic of China; Hubei Key Laboratory for Processing and Transformation of Agricultural Products (Wuhan Polytechnic University), Wuhan 430023, People's Republic of China
| | - Fuwei Pi
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, Hubei, People's Republic of China; School of Food Science and Technology, Jiangnan University, Wuxi 214122, Jiangsu, People's Republic of China.
| | - Jiahua Wang
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, Hubei, People's Republic of China; Hubei Key Laboratory for Processing and Transformation of Agricultural Products (Wuhan Polytechnic University), Wuhan 430023, People's Republic of China.
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43
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Abomohra A, Hanelt D. Recent Advances in Micro-/Nanoplastic (MNPs) Removal by Microalgae and Possible Integrated Routes of Energy Recovery. Microorganisms 2022; 10:microorganisms10122400. [PMID: 36557653 PMCID: PMC9788109 DOI: 10.3390/microorganisms10122400] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 11/29/2022] [Accepted: 11/30/2022] [Indexed: 12/12/2022] Open
Abstract
Reliance on plastic has resulted in the widespread occurrence of micro-/nanoplastics (MNPs) in aquatic ecosystems, threatening the food web and whole ecosystem functions. There is a tight interaction between MNPs and microalgae, as dominant living organisms and fundamental constituents at the base of the aquatic food web. Therefore, it is crucial to better understand the mechanisms underlying the interactions between plastic particles and microalgae, as well as the role of microalgae in removing MNPs from aquatic ecosystems. In addition, finding a suitable route for further utilization of MNP-contaminated algal biomass is of great importance. The present review article provides an interdisciplinary approach to elucidate microalgae-MNP interactions and subsequent impacts on microalgal physiology. The degradation of plastic in the environment and differences between micro- and nanoplastics are discussed. The possible toxic effects of MNPs on microalgal growth, photosynthetic activity, and morphology, due to physical or chemical interactions, are evaluated. In addition, the potential role of MNPs in microalgae cultivation and/or harvesting, together with further safe routes for biomass utilization in biofuel production, are suggested. Overall, the current article represents a state-of-the-art overview of MNP generation and the consequences of their accumulation in the environment, providing new insights into microalgae integrated routes of plastic removal and bioenergy production.
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Jiao M, Wang Y, Li T, Li R, Liu B. Riverine microplastics derived from mulch film in Hainan Island: Occurrence, source and fate. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 312:120093. [PMID: 36064060 DOI: 10.1016/j.envpol.2022.120093] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 08/27/2022] [Accepted: 08/29/2022] [Indexed: 06/15/2023]
Abstract
Mulch film (MF) residues is an important source of microplastics (MPs) in farmland, but its transportation risk to the wider environment was still unknown. Some researches have pursued the sources of MPs found in exorheic rivers. Even so, a systematic study depicting the occurrence, source and fate of microplastics derived from mulch films (MPMF), the crucial component of MPs in farmlands, in exorheic rivers still lacking. Here, the combination of UV-Vis Raman spectroscopy and X-ray photoelectron spectroscopy (XPS) was used to identify the full-size MPMF (1-5000 μm) in field sediment samples collected by single-diagonal systematic sampling. This study verified that MPMF, a polyethylene-matrix composite doped with additives, contributed a considerable part of MPs detected in upstream farmland soil and riverine sediments, and even had an abundance of 38 ± 11 items/kg to 82 ± 15 items/kg, accounting for 9.0%-13.7% of the total MPs in estuary sediments. Notably, upstream farmland was identified to the main source of the riverine MPMF by partial least square path modeling (PLS-PM), contributing to 94.7% of MPMF in riverside sediments and 85.0% of MPMF in estuary sediments. Our study first demonstrates that MPMF constitutes a non-negligible component of MPs in estuarine sediments and underlines the urgency of strengthening the management of MPs pollution in drainage areas with a high agricultural intensity.
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Affiliation(s)
- Meng Jiao
- School of Marine Sciences, Guangxi University, Nanning, 530004, China
| | - Yijin Wang
- School of Marine Sciences, Guangxi University, Nanning, 530004, China
| | - Tiezhu Li
- School of Resources, Environment and Materials, Guangxi University, Nanning, 530004, China
| | - Ruilong Li
- College of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, China.
| | - Beibei Liu
- Institute of Environmental and Plant Protection, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China
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45
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Ding C, Jiao M, Wang Y, Yao Z, Li T, Wang W, Cao S, Li R, Wang Y. Distribution and retention of microplastics in plantation mangrove forest sediments. CHEMOSPHERE 2022; 307:136137. [PMID: 36007748 DOI: 10.1016/j.chemosphere.2022.136137] [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: 06/21/2022] [Revised: 07/31/2022] [Accepted: 08/17/2022] [Indexed: 06/15/2023]
Abstract
Microplastics (MPs) in ocean tides can be effectively intercepted by mangroves, especially sediments, which are considered to be effective sinks. However, the retention of plantation mangrove forests on MPs is still unclear. In this study, the spatial distribution and its implication factors of MPs in surface sediments of plantation mangrove forests were investigated for the first time. In plantation forests, MPs were detected with abundances ranging from 67 ± 21 to 203 ± 25 items/kg, and plantation forests were significantly lower than natural forests at the CJ sampling site (p < 0.05). Plantation forests had fewer fibrous MPs than natural forests (p < 0.05). Furthermore, the MPs abundance showed strong linear relationships with the sand content (p = 0.002, R2 = 0.86) and Aegiceras corniculata biomass (p = 0.001, R2 = 0.84). Partial least squares path modeling analysis (PLS-PM) indicated that these two factors influenced MPs abundance by retaining MPs with fibrous, fragmented, denser and larger-sized characteristics. Our results revealed the differences in MPs abundance and characteristics between plantation and natural mangrove forests, and it is necessary to monitor MPs pollution to provide significant guidance for the restoration of constructed wetlands.
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Affiliation(s)
- Chenyao Ding
- School of Resources, Environment and Materials, Guangxi University, Nanning, 530004, China
| | - Meng Jiao
- School of Marine Sciences, Guangxi University, Nanning, 530004, China
| | - Yijin Wang
- School of Marine Sciences, Guangxi University, Nanning, 530004, China
| | - Zuofang Yao
- Science and Technology Innovation and Development Center, Chinese Academy of Sciences, Beijing, 100190, China
| | - Tiezhu Li
- School of Resources, Environment and Materials, Guangxi University, Nanning, 530004, China
| | - Wenhuan Wang
- School of Marine Sciences, Guangxi University, Nanning, 530004, China
| | - Shaoheng Cao
- School of Marine Sciences, Guangxi University, Nanning, 530004, China
| | - Ruilong Li
- College of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, China.
| | - Yinghui Wang
- Institute of Green and Low Carbon Technology, Guangxi Institute of Industrial Technology, Nanning, 530004, China.
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46
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Chen B. Current status and trends of research on microplastic fugacity characteristics and pollution levels in mangrove wetlands. FRONTIERS IN ENVIRONMENTAL SCIENCE 2022; 10. [DOI: 10.3389/fenvs.2022.1021274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
Microplastics have been widely detected in the environment, while mangrove wetlands are considered barriers to land-based plastic transport to the ocean, requiring special attention. However, the current literature is distributed and broad besides limited information on the fate characteristics and pollution levels. This study uses a systematic literature review method to analyze the current research status and future trends. In this study, the literature is summarized and concluded that Characteristics including color, shape, size, polymer chemistry and surface microstructure are the basic information for microplastic research in mangrove wetlands. Size is the key to studying distribution and convergence without international standards. The shape is vital to study its sources and environmental processes. Color affects biological predation and is important information for studying ecological risk. The chemical composition of plastics is the key to studying microplastics’ fingerprint information, source, and sink. The surface microstructure is an important basis for studying adsorption behavior and aging processes. Mangrove microplastic studies in China are mainly on the southern and southeastern coasts, and microplastic pollution is more severe in Fujian, Guangdong, and Guangxi than in Hainan. In contrast, studies on mangrove microplastics abroad are mainly concentrated in Southeast Asia, the Middle East, and South America. Overall, microplastic contamination was detected in the major distribution areas of mangroves worldwide and was correlated with mangrove density and human activities.
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47
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Ding R, Ouyang F, Peng D, You J, Ding L, Ouyang Z, Liu P, Guo X. A case study of distribution and characteristics of microplastics in surface water and sediments of the seas around Shenzhen, southern coastal area of China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 838:156063. [PMID: 35597363 DOI: 10.1016/j.scitotenv.2022.156063] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 05/05/2022] [Accepted: 05/16/2022] [Indexed: 06/15/2023]
Abstract
Microplastics (MPs), known to cause environmental pollution, is attracting a growing attention worldwide owing to their extensive existence and potential risks to biota. The marginal sea areas are suspected to be especially susceptible to MPs pollution. Unfortunately, data on MPs in the surface water and sediments ecosystems are still limited, particularly in the southern coastal areas of China. The study was successfully utilized to explore the distribution and characteristics of MPs below 5 mm collected from 14 sites in the seas around Shenzhen, a typical special economic zone of China. MPs were detected in both surface water and sediments with concentrations ranging from 3.8 to 7.8 items per liter and 2.6 × 103 to 10.0 × 103 items per kilogram, respectively. The highest abundance of MPs appeared in S5/S9 and S14 in surface water and sediments, respectively. Fiber and film with small particle size (<0.5 mm) were identified as typical and abundant MPs type among all samples. In addition, polyethylene (PE) was considered as dominant forms of MPs in surface water and sediment samples. Results from this study indicated a positive correlation with abundance of MPs and urbanization rate, which also showed an evident difference of MPs in different urban functional areas. Based on the types and quantity of detected MPs, we assessed the risk of MPs pollution in this study area, and the ecological risk category of MPs was at a high level. Importantly, our work might be employed as a potential information so as to better understand MPs pollution, source tracing and ecological risk assessment, which enhances the possibility of achieving effective control and supervision of MPs pollution in southern coastal aera of China.
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Affiliation(s)
- Rui Ding
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China; Key Laboratory of Plant Nutrition and the Agro-environment in Northwest China, Ministry of Agriculture, Yangling, Shaanxi 712100, China
| | - Fan Ouyang
- Department of Transportation and Environment, Shenzhen Institute of Information Technology, Shenzhen, Guangdong 518172, China
| | - Dan Peng
- Department of Transportation and Environment, Shenzhen Institute of Information Technology, Shenzhen, Guangdong 518172, China.
| | - Jia You
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China; Key Laboratory of Plant Nutrition and the Agro-environment in Northwest China, Ministry of Agriculture, Yangling, Shaanxi 712100, China
| | - Ling Ding
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China; Key Laboratory of Plant Nutrition and the Agro-environment in Northwest China, Ministry of Agriculture, Yangling, Shaanxi 712100, China
| | - Zhuozhi Ouyang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China; Key Laboratory of Plant Nutrition and the Agro-environment in Northwest China, Ministry of Agriculture, Yangling, Shaanxi 712100, China
| | - Peng Liu
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China; Key Laboratory of Plant Nutrition and the Agro-environment in Northwest China, Ministry of Agriculture, Yangling, Shaanxi 712100, China
| | - Xuetao Guo
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China; Key Laboratory of Plant Nutrition and the Agro-environment in Northwest China, Ministry of Agriculture, Yangling, Shaanxi 712100, China.
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48
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Hu B, Guo P, Han S, Jin Y, Nan Y, Deng J, He J, Wu Y, Chen S. Distribution characteristics of microplastics in the soil of mangrove restoration wetland and the effects of microplastics on soil characteristics. ECOTOXICOLOGY (LONDON, ENGLAND) 2022; 31:1120-1136. [PMID: 35864407 DOI: 10.1007/s10646-022-02561-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 06/20/2022] [Indexed: 06/15/2023]
Abstract
The dense vegetation in the wetland could effectively retain microplastic particles, and the distribution of microplastics varied significantly under different planting densities. In addition, microplastics in the soil environment can affect soil properties to a certain extent, which in turn can affect soil functions and biodiversity. In this study, we investigated the distribution of soil microplastics in a mangrove restoration wetland under different planting densities and their effects on wetland soil properties. The results indicated that the average abundance of soil microplastics was 2177.5 n/500 g, of which 70.9% exhibited a diameter ranging from 0.038-0.05 mm, while the remaining soil microplastics accounted for less than 20% of all microplastics, indicating that smaller-diameter microplastics were more likely to accumulate in wetland soil. The microplastic abundance could be ranked based on the planting density as follows: 0.5 × 0.5 m > 1.0 × 0.5 m > 1.0 × 1.0 m > control area. Raman spectroscopy revealed that the predominant microplastic categories in this region included polyethylene terephthalate (PET, 52%), polyethylene (PE, 24%) and polypropylene (PP, 15%). Scanning electron microscopy (SEM) images revealed fractures and tears on the surface of microplastics. EDS energy spectra indicated a large amount of metal elements on the surface of microplastics. Due to the adsorptive features of PET, this substance could influence the soil particle size distribution and thus the soil structure. All physicochemical factors, except for the soil pH, were significantly affected by PET. In addition, the CV analysis results indicated that soils in vegetated areas are more susceptible to PET than are soils in bare ground areas, leading to greater variation in their properties.
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Affiliation(s)
- Bo Hu
- Department of Environmental Science and Engineering, College of Chemical Engineering, Huaqiao University, Xiamen, Fujian, 361021, China
| | - Peiyong Guo
- Department of Environmental Science and Engineering, College of Chemical Engineering, Huaqiao University, Xiamen, Fujian, 361021, China.
| | - Siyu Han
- Instrumental Analysis Center, Huaqiao University, Xiamen, Fujian, 361021, China
| | - Yifan Jin
- Department of Environmental Science and Engineering, College of Chemical Engineering, Huaqiao University, Xiamen, Fujian, 361021, China
| | - Yiting Nan
- Department of Environmental Science and Engineering, College of Chemical Engineering, Huaqiao University, Xiamen, Fujian, 361021, China
| | - Jun Deng
- Department of Environmental Science and Engineering, College of Chemical Engineering, Huaqiao University, Xiamen, Fujian, 361021, China
| | - Junming He
- Department of Environmental Science and Engineering, College of Chemical Engineering, Huaqiao University, Xiamen, Fujian, 361021, China
| | - Yaqing Wu
- Instrumental Analysis Center, Huaqiao University, Xiamen, Fujian, 361021, China
| | - Sijia Chen
- Department of Environmental Science and Engineering, College of Chemical Engineering, Huaqiao University, Xiamen, Fujian, 361021, China
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49
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Su X, Yuan J, Lu Z, Xu J, He Y. An enlarging ecological risk: Review on co-occurrence and migration of microplastics and microplastic-carrying organic pollutants in natural and constructed wetlands. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 837:155772. [PMID: 35533864 DOI: 10.1016/j.scitotenv.2022.155772] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 04/28/2022] [Accepted: 05/04/2022] [Indexed: 06/14/2023]
Abstract
Wetlands are a key hub for the accumulation of microplastics (MPs) and have great load capacity to organic pollutants (OPs), thus, have been a hot research topic. It has shown that OPs adsorbed on MPs could be transported to anywhere and MP-associated biofilms also affects the co-occurrence of MPs and OPs. This would induce the desorption of MP-carrying OPs into environment again, increasing latent migration and convergence of MPs and OPs in wetlands. Considering MPs vector effect and MP-associated biofilms, it is necessary to integrate MPs information on its occurrence characteristics and migration behavior for an improved assessment of ecological risk brought by MPs and MP-carrying OPs to whole wetland ecosystems. In this review, we studied papers published from 2010 to 2020, focused on the interaction of MPs with OPs and the role of their co-occurrence and migration on ecological risk to wetlands. Results suggested the interaction between MPs and OPs dominated by adsorption altered their toxicity and environmental behavior, and the corresponding ecological risk induced by their co-occurrence to wetlands is various and complicated. Especially, constructed wetlands as the special hub for the migration of MPs and MP-carrying OPs might facilitate their convergence between natural and constructed wetlands, posing a potential enlarging ecological risk to whole wetlands. Since the study of MPs in wetlands has still been in a primary stage, we hope to provide a new sight to set forth the potential harm of MPs and MP-carrying OPs to wetlands and useful information for follow-up study.
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Affiliation(s)
- Xin Su
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Jing Yuan
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Zhijiang Lu
- Department of Environmental Science and Geology, Wayne State University, Detroit, MI 48201, United States
| | - Jianming Xu
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yan He
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China; Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, Hangzhou 310058, China.
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50
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Klein JR, Beaman J, Kirkbride KP, Patten C, Burke da Silva K. Microplastics in intertidal water of South Australia and the mussel Mytilus spp.; the contrasting effect of population on concentration. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 831:154875. [PMID: 35364164 DOI: 10.1016/j.scitotenv.2022.154875] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 02/27/2022] [Accepted: 03/24/2022] [Indexed: 06/14/2023]
Abstract
Microplastics, plastic particles <5 mm in size, are of global concern as human-caused pollutants in marine and fresh waters, and yet little is known of their distribution, behaviour and ecological impact in the intertidal environment of South Australia. This study confirms for the first time, the presence of microplastic in the South Australian intertidal ecosystem by quantifying the abundance of particles in intertidal water and in the keystone species, the blue mussel, Mytilus spp., an important fisheries species, at ten and six locations respectively, along the South Australian coastline. For a remote region known for its pristine environment, microplastic concentration in intertidal water was found to be low to moderate (mean = 8.21 particles l-1 ± 4.91) relative to global levels and microplastic abundance in mussels (mean = 3.58 ± 8.18 particles individual-1) was within the range also reported globally. Microplastic particles were ubiquitous across sites and bioavailable by size in water (mean = 906.36 μm) and in mussel (mean = 983.29 μm) raising concerns for the health of South Australia's unique coastal ecosystems and for the human food chain. Furthermore, a positive correlation was found between human coastal population size and microplastic concentration in intertidal water, irrespective of influences from industry - tourism, fishing and shipping ports. FTIR analysis determined plastic type to include polyamide (PA), polyethylene (PE), polypropylene (PP), acrylic resin, polyethyleneterephthalate (PET) and cellulose, suggesting synthetic and semi-synthetic particles from single-use, short-life cycle products, fabrics, ropes and cordage. Our findings shed light on the urgent need to establish the local sources of microplastic pollution in order to assist the community, industry and government to reduce the impact of microplastic on the fragile marine systems within South Australian intertidal waters and on the organisms associated with the human food chain.
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Affiliation(s)
- Janet R Klein
- College of Science and Engineering, Flinders University, Bedford Park, South Australia 5042, Australia.
| | - Julian Beaman
- College of Science and Engineering, Flinders University, Bedford Park, South Australia 5042, Australia.
| | - K Paul Kirkbride
- College of Science and Engineering, Flinders University, Bedford Park, South Australia 5042, Australia.
| | - Corey Patten
- College of Science and Engineering, Flinders University, Bedford Park, South Australia 5042, Australia
| | - Karen Burke da Silva
- College of Science and Engineering, Flinders University, Bedford Park, South Australia 5042, Australia.
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