Journal
MARINE POLLUTION BULLETIN
Volume 156, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2020.111152
Keywords
Microplastics; Surface water; Qiantang River; Flux; Anthropogenic impact; Hangzhou Bay
Funding
- Zhejiang Provincial Natural Science Foundation of China [LQ18D060001]
- Fujian Provincial Key Laboratory for Coastal Ecology and Environmental Studies (CEES) Visiting Fellowship Program [CEESRS1804]
- China Scholarship Council (CSC) program
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Microplastics (MPs) in the surface water of the Qiantang River and its tributaries were investigated in this study, to evaluate the contribution of riverine discharge on emerging pollution load in the Hangzhou Bay. The abundance of MPs (mean 1183 +/- 269 particles/m(3)) showed spatially and temporally heterogeneous in the surface water. Polyamide, polyester, and polyethylene teraphalate were the major components, accounting for 77.4% of all polymer types. Fiber was the most common shape, indicating the potential anthropogenic sources of MPs. The MPs flux from the Qiantang River to the Hangzhou Bay was estimated to be 2831 tons/year, implying the importance of riverine discharge in an estuarine bay. The inputs from the complicated tributaries system led to a 20-fold increase of MPs flux, and would significantly improve their budget of downstream and estuary, so we suggested the control and management on plastic pollution should be strengthened in all aspects.
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