河口
污染物
环境科学
长江
海水
Mercury(编程语言)
环境化学
砷
水质
污染
海洋学
生态学
化学
地质学
生物
有机化学
政治学
法学
计算机科学
中国
程序设计语言
作者
Qian Wang,Hui Xu,Jie Yin,Shanshan Du,Caicai Liu,Juan-Ying Li
标识
DOI:10.1016/j.marpolbul.2022.114366
摘要
The Yangtze River protection strategies are expected to improve the water quality and ecological function of the Yangtze River Estuary (YRE). The concentrations of 16 polycyclic aromatic hydrocarbons (PAHs) and 6 heavy metals (HMs) in the YRE were measured and the riverine fluxes were calculated subsequently. In particular, the concentrations of low molecular weight PAHs (LMW-PAHs), arsenic (As) and mercury (Hg) in seawater decreased over time, while those of other studied pollutants did not change a lot. In sediments, the concentration changes for all the pollutants were insignificant. For the present pollutants, the river input is the dominant source, and the flux decreased after the protection. The contribution of the discharge from wastewater treatment plants (WWTPs) was quantified. Its influence cannot be ignored. The seafood quality remained stable and the risk via diet was insignificant. Long-term monitoring is necessary, and the positive impact of the Protection Strategy is gradually emerging.
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