Anthropogenic impacts on the temporal variation of heavy metals in Daya Bay (South China)
文献类型： 外文期刊
作者： Man, Xiangtian 1 ; Huang, Honghui 2 ; Chen, Fang 4 ; Gu, Yangguang 2 ; Liang, Ruize 1 ; Wang, Boguang 1 ; Jordan, Richard W. 5 ; Jiang, Shijun 6 ;
作者机构： 1.Jinan Univ, Inst Environm & Climate Res, Guangzhou 511443, Peoples R China
2.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Guangzhou 510300, Peoples R China
3.Guangdong Prov Key Lab Fishery Ecol & Environm, Guangzhou 510300, Peoples R China
4.Southern Marine Sci & Engn Guangdong Lab, Guangzhou 511458, Peoples R China
5.Yamagata Univ, Fac Sci, Yamagata 9908560, Japan
6.Hohai Univ, Coll Oceanog, Nanjing 210024, Peoples R China
7.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Guangdong Prov Key Lab Fishery Ecol & Environm, Guangzhou 510300, Peoples R China
关键词： Sediment; Heavy metals; Enrichment factor; Anthropogenic activities; Daya Bay
期刊名称：MARINE POLLUTION BULLETIN （ 影响因子：5.8； 五年影响因子：6.5 ）
ISSN： 0025-326X
年卷期： 2022 年 185 卷
页码：
收录情况： SCI
摘要： A detailed study of a sediment core from Daya Bay (South China) has revealed three stages of heavy metal deposition over the past century. Prior to the 1980s, heavy metal concentrations were low with limited influence by human activities. From the 1980s to 2000, metal pollution intensified, and anthropogenic activities, such as oil and petrochemical industries, and fuel combustion, had the greatest direct influence on Hg, Ni, Pb, and Zn concentrations, whereas atmospheric deposition and mariculture were also contributors to the continued in-crease in Cr, Cu, Pb, Zn, and Ni. Since the year 2000, heavy metal concentration has declined and stabilized. It is noteworthy that anthropogenic input of Cu and Pb is ongoing and may result in a moderate pollution risk. Both modified pollution index (MPI) and modified ecological risk (MRI) consistently indicate that the ecological risk in terms of heavy metals in Daya Bay has remained moderate over the past 70 years.
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