2012•Environmental Monitoring in ChinaRequires access

Contents and Potential Ecological Risk of Heavy Metals in Nansha River

Xiaofei Yao

Abstract

By analyzing the content of heavy metals of water substance in Nansha River,the distribution characteristics of heavy metals were discussed.Index of geo-accumulation and potential ecological risk of heavy metals in sediment was assessed by the method of potential ecological risk index.Results indicated:Nansha River doesn't have been polluted by heavy metals seriously.the index of geo-accumulation(Igeo)classify are between 0~3,the contamination levels are from non to middle,Various heavy metals pollution degree from high to low in turn is: ZnAsPbCuCrCd.Potential ecological risk of heavy metals in sediment exhibits light to middle,with Cd as priority risk.

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Key concepts: Heavy metals, Sediment, Environmental science, Pollution, Index (typography), Environmental chemistry, Ecology, Geology