2012•Environmental Science & TechnologyRequires access

Character and Assessment of Heavy Metals in the Sediments from the River of Zhoushan Island

Pan Jing-feng

Abstract

Based on the analysis,a comprehensive assessment on heavy metals in the sediments was presented using index of geo-accumulation and Hakanson potential ecological risks index.The results indicate that,based on the geo-accumulation index,Hg、Cr and As belong toclean,Cu、Pb、Cd and Zn belong tomild pollution.Based on the single heavy metal ecological risk index,the risk levels of Cu、Pb、As 、Zn and Cr belong toslightlevel,The risk order of the heavy metals is Cd HgCuPbAsCrZn.According to the Hakanson potential ecological risk index,City River and Zhanmao River is of the middle level.

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Key concepts: Heavy metals, Index (typography), Environmental science, Environmental chemistry, Pollution, Index method, Hydrology (agriculture), Environmental engineering