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Characteristics of heavy metal pollution in surficial sediment of Dagu estuary in Bohai Bay
Author(s): 
Pages: 42-47
Year: Issue:  12
Journal: Environmental Science and Management

Keyword:  重金属沉积物大沽口EPA-3051heavy metalssedimentDagu EstuaryEPA-3051;
Abstract: 采用U.S.EPA-3051方法测定了渤海湾海河大沽口表层沉积物中Cd、Pb、Zn、As、Cr、Mn、Ni和Cu等8种重金属元素的含量,并分析其污染水平及分布特点。结果表明,Cu和As是大沽口表层沉积物中主要的污染元素,其含量均高于渤海湾环境背景值,其它重金属元素含量与环境背景值相当,但所测元素均未超过海洋沉积物质量标准(GB18668—2002)第三类限定值。Cu的最大值65.57mg/kg出现...
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