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Distribution and source analysis of heavy metals in soils and sediments of Yueqing Bay basin, East China Sea

文献类型： 外文期刊

作者： Yang, Xiaohui 1 ; Wu, Pengbao 1 ; Yin, Aijing 2 ; Zhang, Huan 1 ; Zhang, Ming 3 ; Gao, Chao 1 ;

作者机构： 1.Nanjing Univ, Sch Geog & Oceanog Sci, Nanjing 210023, Jiangsu, Peoples R China

2.Jiangsu Acad Agr Sci, Inst Agr Resources & Environm, Nanjing 210014, Jiangsu, Peoples R China

3.China Geol Survey, Nanjing Ctr, Nanjing 210000, Jiangsu, Peoples R China

关键词： Heavy metal;Enrichment factor;Principal component analysis;Receptor modeling;Yueqing Bay

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

ISSN：

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收录情况： SCI

摘要： Concentrations of heavy metals in coastal soils, stream sediments and intertidal sediments of Yueqing Bay basin were analyzed to study their distribution and trace the possible sources. According to various single- and multi index methods, heavy metal enrichment, especially for Cu, Zn, Cr and Ni in stream sediments, should draw environmental concern. Controlling factors such as inorganic scavengers, organic matter, sample grain size and hydrodynamic conditions were identified to influence the transportation and distribution of metals within coastal soils and sediments. Principal component analysis indicated that most metals in soils and stream sediments originate primarily from natural and anthropogenic sources, respectively. Most metals in intertidal sediments, originating both from natural processes and human activities, tend to be concentrated in fine particles. The exchange of water and sediment between the bay and open waters is strong enough to keep the metals in the tidal flats from rising to very high levels. (C) 2016 Elsevier Ltd. All rights reserved.

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