Title: Distribution Characteristics and Pollution Assessment of Heavy Metals in the Surface Sediments in Zhushan Bay
Abstract: For studying the pollution condition of heavy metals of the wetland sediments in Zhushan Bay of Taihu lake,the contents of As,Cd,Cr,Cu,Ni,Pb and Zn in the surface sediments were measured and the pollution degree and the potential ecological harm of heavy metals were analyzed and assessed by using the methods of Geo-accumulation index and potential ecological risk index.The results showed: The average contents of As,Cd,Cr,Cu,Ni,Pb and Zn were 123.32,2.61,160.24,176.78,183.09,30.12 and 269.61 mg/kg respectively,which were all higher than their background values.The Geo-accumulation index method indicated that As and Cd reached the serious pollution level,Zn was at the moderate pollution level, Cr and Pb reached the lower pollution level,Cu and Ni pollution had different pollution levels in the studied area.The ecological risk index method indicated that about 80% of the studied area reached severe and very severe harm degree and Cd was the main element of potential harm,the follower was As in the studied area.
Publication Year: 2011
Publication Date: 2011-01-01
Language: en
Type: article
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Cited By Count: 1
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