Assessment of Microplastic Pollution and Estimation of Annual Emission Volume in the Dongshan Canal of Yichang City

Microplastics, as an emerging pollutant, have garnered global attention. Urban areas are key hotspots for the generation of microplastic pollution, whereas urban water bodies act as vital conduits for the dissemination of microplastics to other freshwater environments. In this study, the Dongshan Ca...

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Published inHuanjing kexue Vol. 45; no. 3; p. 1448
Main Authors Ding, Shuang, Li, Wei-Ming, Zhang, Xu-Tong, Liu, Zi-Jian, Gao, Ya-Kun, Li, Ying-Cheng, Wang, Fang-Wei
Format Journal Article
LanguageChinese
Published China 08.03.2024
Subjects
pollution occurrence
ecological risk
emission volume
microplastics(MPs)
urban waterways
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Summary:Microplastics, as an emerging pollutant, have garnered global attention. Urban areas are key hotspots for the generation of microplastic pollution, whereas urban water bodies act as vital conduits for the dissemination of microplastics to other freshwater environments. In this study, the Dongshan Canal in the urban area of Yichang City was selected as the research subject. Through field sampling, microscopic observation, and Fourier infrared spectroscopy analysis conducted in July and October 2022, the occurrence characteristics and potential pollution sources of microplastics in the water body of the Dongshan Canal were identified and analyzed. The ecological risk and annual emission volume of microplastics in the water body were quantitatively assessed using the risk index (H), pollution load index (PLI) model, and proportional flow method. The results indicated that the average abundances of microplastics in the surface water of the Dongshan Canal were (7 295±1 051) n·m (July) and (5 145±762.6) n·m (Octobe
ISSN:0250-3301
DOI:10.13227/j.hjkx.202303201