Characteristics and source-pathway of microplastics in freshwater system of China: A review

Zhao, Mengjie; Cao, Yanxiao; Chen, Tiantian; Li, Honghu; Tong, Yifei; Fan, Wenbo; Xie, Yuwei; Tao, Ye; Zhou, Jingcheng

doi:10.1016/j.chemosphere.2022.134192

Cited by 36 publications

(8 citation statements)

References 142 publications

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“…1). Compared with other countries, MP pollution in the river system in China was at a medium-to-high level nationwide (Zhao et al, 2022). The minimum content of MPs in Qin River was as low as 0.1 items/m 3 and that in the yulin river was 0.013 items/L, whereas the maximum concentration of MPs up to 53250 items/m 3 was observed in Pearl River and 930 items/L in lower yellow river near the estuary (Han et al, 2020;Mao et al, 2020;Yan et al, 2019).…”

Section: Analysis Of the Current Situation Of Mps In Chinamentioning

confidence: 93%

“…Currently, the studies on freshwater MPs in China had carried out for a long time (Zhao et al, 2022), including lakes, freshwater rivers, and reservoirs. A recent study analyzed the MPs in freshwater in the yangtze river Basin (Zhang et al, 2021), and another study investigated the distribution and characteristics of MPs in the backwater area of xiangxi river, a typical tributary of the Three Gorges reservoir (Zhang et al, 2017).…”

Section: Current Situation Of Global Mps In Freshwatermentioning

confidence: 99%

“…The differentiation of sources and paths of MPs is of great significance for controlling the occurrence of MPs in freshwater (Zhao et al, 2022). Wastewater is generally regarded as an important pathway for MPs entering the water body, including WWTPs effluent, industrial effluent, and overflow of sewage.…”

Section: Fig 2: Spatial Analysis Map Of Mps In Chinamentioning

confidence: 99%

“…The prevalent plastic products contained plastic bottles, bags, films, caps, containers, plastic pellets in pharmaceuticals, microbeads in personal care products, and plastic products (feeders, impermeable membranes, cages, floats, boats, fences, ropes, nets, oxygenators, fish packaging, and transport materials) in the fishery (Lusher et al, 2016). The Chinese government issued an upgraded law restricting the use of plastic products, including nonbiodegradable plastic bags, single-use plastic tableware, hotel disposable plastic products, and express plastic packaging (Zhao et al, 2022).…”

Section: Fig 2: Spatial Analysis Map Of Mps In Chinamentioning

confidence: 99%

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Data Mining Revealing Recent Microplastics Pollution of Freshwater in China

Xie¹,

Pei²

2022

American Journal of Environmental Sciences

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This review mainly discusses the characteristics and correlation of microplastics (MPs) in freshwater systems under various geographical environments in China. The distribution and source of MPs are analyzed and their spatial analyses are performed using the GIS method. Besides, the current and future situation of microplastic pollution in China is further evaluated through data mining. Results indicate that recent studies mainly focused on the middle and lower reaches of the yangtze river and its tributaries, as well as lakes and reservoirs along the yangtze river. Notably, large-scale reservoirs, rivers, and lakes located in densely populated areas showed higher abundances of MPs. Taken together, the current MP's pollution of freshwater in China was not optimistic. Novel technologies should be developed to remove existing microplastics and new laws and regulations should be promulgated to reduce plastic waste pollution.

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Section: Analysis Of the Current Situation Of Mps In Chinamentioning

confidence: 93%

Section: Current Situation Of Global Mps In Freshwatermentioning

confidence: 99%

Section: Fig 2: Spatial Analysis Map Of Mps In Chinamentioning

confidence: 99%

Section: Fig 2: Spatial Analysis Map Of Mps In Chinamentioning

confidence: 99%

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Data Mining Revealing Recent Microplastics Pollution of Freshwater in China

Xie¹,

Pei²

2022

American Journal of Environmental Sciences

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“…For example, ultraviolet radiation and high temperatures cause changes in the chemical substances in plastic products and increase their vulnerability to fragmentation into microplastics ( 18 , 19 ). In recent years, freshwater microplastic pollution has been investigated for lakes in Europe, North America, and China ( 20 , 21 ). The characteristics of microplastic composition in 39 urban and rural lakes in India were investigated and found that the average content of microplastics in water and sediment of urban lakes was 88.06 items L −1 and 115.24 items kg −1 , respectively, while the average content of microplastics in rural lakes was 42.98 items L −1 and 53.29 items kg −1 ( 22 ).…”

Section: Introductionmentioning

confidence: 99%

Distribution patterns and environmental risk assessments of microplastics in the lake waters and sediments from eight typical wetland parks in Changsha city, China

Yao,

Li,

et al. 2024

Front. Public Health

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The quality of water in urban parks is closely related to people’s daily lives, but the pollution caused by microplastics in park water and sediments has not been comprehensively studied. Therefore, eight typical parks in the urban area of Changsha, China, were selected, and Raman spectroscopy was used to explore the spatial distributions and compositions of the microplastics in the water and sediments, analyze their influencing factors, and evaluate their environmental risks. The results showed that the abundances of surface water microplastics in all parks ranged from 150 to 525 n L−1, and the abundances of sediment microplastics ranged from 120 to 585 n kg−1. The microplastics in the surface water included polyethylene terephthalate (PET), chlorinated polyethylene (CPE), and fluororubber (FLU), while those in the sediments included polyvinyl chloride (PVC), wp-acrylate copolymer (ACR), and CPE. Regression analyses revealed significant positive correlations between human activities and the abundances of microplastics in the parks. Among them, the correlations of population, industrial discharge and domestic wastewater discharge with the abundance of microplastics in park water were the strongest. However, the correlations of car flow and tourists with the abundance of microplastics in park water were the weakest. Based on the potential ecological risk indices (PERI) classification assessment method, the levels of microplastics in the waters and sediments of the eight parks were all within the II-level risk zone (53–8,549), among which the risk indices for Meixi Lake and Yudai Lake were within the IV risk zone (1,365–8,549), which may have been caused by the high population density near the park. This study provides new insights into the characteristics of microplastics in urban park water and sediment.

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