RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN >> 2008, Vol. 17 >> Issue (1): 109-109.

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EVALUATION ON POTENTIAL ECOLOGICAL RISK OF HEAVY METAL POLLUTION IN SURFACE SEDIMENTS FROM HUANGPU RIVER

HU Xiongxing1|2| HAN Zhonghao1| ZHANG Jin2| XIA Fan1| WANG Wenhua2   

  • Received:1900-01-01 Revised:1900-01-01 Online:2008-01-20

Abstract:

The ecological risk of heavy metal pollution in surface sediments in Huangpu River was studied with potential ecological risk index.The results showed that potential ecological risk of heavy metals in surface sediments from Huangpu River was a bit low，with middle ecological risk at Yangpu Bridge section and Nanshi Water Work section，and low ecological risk at other sections.Potential ecological risk of heavy metals decreased as：Cd>Hg>Cu>As>Pb>Cr>Zn.Cd was the most hazardous element with the mean ecological risk index of 3096，which belonged to middle ecological risk，and other elements belonged to low ecological risk.The pollution level of heavy metals increasing from upper to downstream of Huangpu River implicated that discharging of industrial effluents was the most important source for heavy metals in Huangpu River，and inflow of Suzhou River offered lots of heavy metals to downstream of Huangpu River.Correlation analysis showed that most of heavy metals came from similar sources，and organic matter content influenced the distribution of heavy metals in sediment strongly.

Key words: heavy metal, ecological risk assessment, surface sediments, Huangpu River

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