Historical trends of anthropogenic metals in sediments of Jiaozhou Bay over the last century

文献类型： 外文期刊

第一作者： Kang, Xuming

作者： Kang, Xuming;Song, Jinming;Yuan, Huamao;Li, Xuegang;Li, Ning;Duan, Liqin;Kang, Xuming;Song, Jinming;Yuan, Huamao;Li, Xuegang;Li, Ning;Duan, Liqin;Song, Jinming;Yuan, Huamao;Li, Xuegang;Li, Ning;Duan, Liqin

作者机构：

关键词： Heavy metals; Anthropogenic fluxes; Historical trend; Contamination; Sediment; Jiaozhou Bay

期刊名称：MARINE POLLUTION BULLETIN （ 影响因子：5.553； 五年影响因子：5.907 ）

ISSN： 0025-326X

年卷期： 2018 年 135 卷

页码：

收录情况： SCI

摘要： Reconstructing heavy metal historical trends are essential for better understanding anthropogenic impact on marine ecosystems. In this work, the ecological risk and sources of Cr, Mn, Ni, Cu, Zn, As, Cd, and Pb in Jiaozhou Bay were studied and the anthropogenic metal emissions was also quantified. The ecological risk was mainly caused by Cd, As and Cu, which presented an increasing trend with increased anthropogenic activities since the 1950s. The statistical analysis show that Cr, Mn, Ni, Cu and Zn were primarily from natural sources. Cadmium and Mn might originate from both natural and anthropogenic sources. Arsenic and Pb were sourced from agricultural activities and atmospheric precipitation, respectively. The anthropogenic flux of Cr, Mn, Ni, Cu, Zn, As, Cd and Pb were 138, 586, 63, 66, 161, 35, 0.31 and 44 mg/m(2)/a since the 1950s. Over 40.0% of Cu and As were quantified from anthropogenic emissions since the 1950s.

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