Ecological risk assessment of heavy metals in sediment and human health risk assessment of heavy metals in fishes in the middle and lower reaches of the Yangtze River basin

被引：1218

作者：

Yi, Yujun ^{[1
]}

Yang, Zhifeng ^{[1
]}

Zhang, Shanghong ^{[2
]}

机构：

[1] Beijing Normal Univ, Sch Environm, State Key Lab Water Environm Simulat & Pollut Con, Beijing 100875, Peoples R China

[2] N China Elect Power Univ, Renewable Energy Sch, Beijing 102206, Peoples R China

来源：

ENVIRONMENTAL POLLUTION | 2011年 / 159卷 / 10期

基金：

中国国家自然科学基金;

关键词：

Heavy metal; Ecological risk; Sediment; Health risk; Fish; Yangtze River; SURFACE WATERS; TRACE-ELEMENTS; POLLUTION; CITY; BAY; CONSUMPTION; CADMIUM; IMPACTS; SEA; INVERTEBRATES;

D O I：

10.1016/j.envpol.2011.06.011

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The concentrations of heavy metals (Cr, Cd, Hg, Cu, Zn, Pb and As) in the water, sediment, and fish were investigated in the middle and lower reaches of the Yangtze River, China. Potential ecological risk analysis of sediment heavy metal concentrations indicated that six sites in the middle reach, half of the sites in the lower reach, and two sites in lakes, posed moderate or considerable ecological risk. Health risk analysis of individual heavy metals in fish tissue indicated safe levels for the general population and for fisherman but, in combination, there was a possible risk in terms of total target hazard quotients. Correlation analysis and PCA found that heavy metals (Hg, Cd, Pb, Cr, Cu, and Zn) may be mainly derived from metal processing, electroplating industries, industrial wastewater, and domestic sewage. Hg may also originate from coal combustion. Significant positive correlations between TN and As were observed. Crown Copyright: (C) 2011 Published by Elsevier Ltd. All rights reserved.

引用

页码：2575 / 2585

页数：11

共 64 条

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