沉积物重金属污染评价——以巢湖龟山区为例

The Estimation of Heavy Metals in Sediments in the East Area of Chaohu

文章系统介绍了水环境沉积物重金属污染评价方法,比较了不同评价方法的优缺点。采用地累积指数法和潜在生态风险法对巢湖龟山区沉积物中Pb、Cu、Zn、Cr等4种重金属污染进行了评价。结果表明,巢湖龟山区沉积物中金属Cr有中度生态风险,Cu有轻度污染,Pb和Zn没有污染。结果也说明,对沉积物中重金属污染的评价需要用多种方法进行比较评价。

This article introduces the estimation methods of the pollution situation of the heavy metals in sediments of water environment.In order to gain more scientific and exact estimation results,the article choose two of them to estimate the pollution situation of the four heavy metals,including Pb,Zn,Cr and Cu,in sediments of east area of Chaohu.The methods are index of geoaccumulation and potential ecological risk index,respectively. The heavy metal,Cr and Cu,was low polluted.The results show that the two and more methods are needed to estimate pollution of heavy metals in sediments.