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Microplastics in wild fish in the Three Gorges Reservoir, China: A detailed investigation of their occurrence, characteristics, biomagnification and risk

Journal of Hazardous Materials 2024 25 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 65 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Yizhi Pei, Yizhi Pei, Yizhi Pei, Jianyong Wu, Jianyong Wu, Jianyong Wu, Ying Lin, Jianyong Wu, Yizhi Pei, Yizhi Pei, Ying Lin, Ying Lin, Yizhi Pei, Yizhi Pei, Junmin Gao Junmin Gao Junmin Gao Ying Lin, Ying Lin, Yizhi Pei, Wenhao Yang, Kongyan Luo, Jinsong Guo, Kongyan Luo, Jianyong Wu, Yizhi Pei, Yizhi Pei, Jinsong Guo, Kongyan Luo, Jingcheng Wu, Kongyan Luo, Jingcheng Wu, Kongyan Luo, Kongyan Luo, Jianyong Wu, Kongyan Luo, Jinsong Guo, Yizhi Pei, Kongyan Luo, Yizhi Pei, Jinsong Guo, Jingcheng Wu, Yizhi Pei, Yizhi Pei, Jingcheng Wu, Jinsong Guo, Jingcheng Wu, Jingcheng Wu, Jinsong Guo, Jingcheng Wu, Jingcheng Wu, Wenhao Yang, Jinsong Guo, Wenhao Yang, Jinsong Guo, Junmin Gao Jinsong Guo, Jinsong Guo, Junmin Gao Junmin Gao Jinsong Guo, Jinsong Guo, Junmin Gao

Summary

Researchers examined 18 species of wild fish in China's Three Gorges Reservoir and found microplastics in every species, with an average of about 7 particles per fish. The microplastics showed signs of aging and weathering, and the study found evidence of biomagnification -- meaning predator fish accumulated more microplastics than their prey, which is relevant to human health since many of these species are consumed as food.

Polymers

Study Type Environmental

Microplastics (MPs) pollution in freshwater poses a risk to various ecosystems and health security. In 2018, the Chinese government banned fishing since 2018 in the Three Gorges Reservoir (TGR), but the fate and risk of MPs in wild fish remain unclear. Therefore, a detailed investigation was conducted into the occurrence of MPs in 18 wild fish species in the TGR using a Micro Fourier Transform Infrared Spectrometer, and the trophic transfer and risks were assessed. MPs in fish were aged, with abundances ranging from 0.68 ± 0.98 to 4.00 ± 2.12 items/individual. Most particles were less than 1 mm in size (73.4 %), with fibers being the dominant shape (48.9 %) and transparent as the dominant color (35 %). Polyethylene (PE) was the most prevalent type. The bioconcentration factor (BCF), bioaccumulation factor (BAF), trophic magnification factor (TMF) and polymer hazard index (PHI) were low, suggesting no trophic transfer and a low risk of MPs. The BAF may provide a more reasonable description of the degree of enrichment of MPs, and 'items/individual' or 'g/individual' can be used to describe MPs concentrations in fish. This study proposes new insights and prospectives that can help researchers better understand MPs enrichment in fish across various trophic levels.

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