1. Ecological risk assessment of dissolved heavy metals in the Yangtze River Estuary and Zhejiang coastal waters, China.
- Author
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Hu X, Zhai X, Jin Y, Wade TL, Zhou X, Zhuang T, Ning J, Song X, Cai W, Chen Z, and Li X
- Subjects
- China, Risk Assessment, Seawater chemistry, Metals, Heavy analysis, Water Pollutants, Chemical analysis, Estuaries, Environmental Monitoring, Rivers chemistry
- Abstract
The study applied a tiered ecological risk assessment method to evaluate the long-term status and trend of the ecological risks of dissolved heavy metals from 2011 to 2019 in the Yangtze River Estuary and Zhejiang coastal waters, China. The results for spring, summer, and autumn of 2019 indicated that Pb, Cd, and Zn posed no adverse ecological risk, Cu posed a potential ecological risk, and As posed an ecological risk. The annual results from 2011 to 2019 suggested that Pb, Cd, and Zn posed no adverse ecological risks, and As and Cu posed an ecological risk. The trend analysis in the nine years showed that the ecological risk of Cu is gradually decreasing, while that of As is still a concern. The overall trend is attributed to the environmental protection policies that reduced these contaminants' terrestrial sources and atmospheric sources., Competing Interests: Declaration of competing interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Xinxin Li reports financial support was provided by National Natural Science Foundation of China. Xinxin Li, Xiuqing Song reports financial support was provided by Shanghai Sheshan National Geophysical Observatory. Xinxin Li, Xiaohui Zhai reports financial support was provided by Shenzhen Marine Development Research Promotion Center. Wei Cai reports financial support was provided by Zhujiang Program. If there are other authors, they declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier Ltd. All rights reserved.)
- Published
- 2024
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