Risk assessment of trace metal-polluted coastal sediments on Hainan Island: A full-scale set of 474 geographical locations covering the entire island
| Autor: | Yansha Wei, Lin Zefeng, Jin-qin Lin, Huayang Cai, Bi-Shuang Chen, Wen-Jie Guo, Haijun He, Li Feng, Cha-Sheng Tan, Huayang Gan, Wen Jiasheng, Zhen Xia |
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| Rok vydání: | 2017 |
| Předmět: |
Pollution
China Geologic Sediments 010504 meteorology & atmospheric sciences media_common.quotation_subject Environmental pollution 010501 environmental sciences Aquatic Science Oceanography Risk Assessment 01 natural sciences Metals Heavy parasitic diseases Environmental monitoring Trace metal Ecosystem 0105 earth and related environmental sciences media_common Islands Threatened species Environmental science Submarine pipeline Environmental Pollution Water Pollutants Chemical Environmental Monitoring |
| Zdroj: | Marine Pollution Bulletin. 125:541-555 |
| ISSN: | 0025-326X |
| Popis: | Hainan Island is the second largest island and one of the most famous tourist destinations in China, but sediment contamination by trace metals in coastal areas is a major issue. However, full-scale risk assessments of trace metal-polluted coastal sediments are lacking. In this study, coastal surface sediments from 474 geographical locations covering almost the entire island were collected to identify risk-related variables. Controlling factors and possible sources of trace metals were identified, and the toxicity effects were carefully evaluated. Our results suggest that trace-metal pollution in coastal sediments, which was mainly caused by Pb, Zn and Cu emissions, has primarily resulted from industrial sewage and shipping activities and has threatened the offshore ecosystem of Hainan Island and warrants extensive consideration. This is the first study that has systematically investigated trace metal-polluted coastal sediments throughout the entirety of Hainan Island and provides solid evidence for sustainable marine management in the region. |
| Databáze: | OpenAIRE |
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