期刊
MARINE POLLUTION BULLETIN
卷 141, 期 -, 页码 9-15出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2019.02.021
关键词
Microplastics; Surface sediments; Sishili Bay; Yellow Sea; Pollution level
资金
- National Natural Science Foundation of China [41576122, 41506145]
- Strategic Priority Research Program of the Chinese Academy of Sciences [XDA23050303]
- Youth Innovation Promotion Association of CAS [2016196]
- Xihua University
- Open Research Subject of Key Laboratory of Food and Biotechnology [szjj2017-108]
As a new emergence pollutant, microplastic has aroused wide concern from both scholars and the public. In this study, microplastic pollution in surface sediments from 28 stations in Sishili Bay was investigated. The average abundance of microplastics was 499.76 +/- 370.07 items/kg (d.w.). Fiber was the majority shape of microplastics (86.37%), followed by film, fragment and pellet. Microplastics < 500 mu m accounted for more than half of the total microplastics. Eight polymer types including rayon, PE, PP, PA, PET, PS, PMMA and PU were identified. The main component was rayon (58.41%), followed by PP and PET. The microplastic pollution in surface sediments of Sishili Bay is moderate compared with other studies. Microplastic pollution level in port, sewage outfall, estuary and aquaculture area of Sishili Bay was relatively high, which indicated that microplastic pollution was mainly sourced from river and sewage discharge and maritime activities.
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