Investigation on Heavy Metal Pollution of Sediments in Xiangjiang River in Changzhutan
Investigation on Heavy Metal Pollution of Sediments in Xiangjiang River in Changzhutan
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发表时间：
2011
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通讯作者：
Chen Li-sha
中科院分区：
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作者：
Chen Li-sha
根据工业园区分布情况，在湘江沉积物中取样6个，对Cu、Pb、Zn、Cd、Ni、Cr、As、Hg进行分析，利用潜在生态风险指数和地累积指数对沉积物中重金属污染程度进行评价。结果表明，长株潭湘江沉积物已受到重金属污染，污染程度和潜在生态风险排序为： CdZnCuPb=NiHgAs=Cr和CdHgPdCuZnAsCr,其中Cd为危险因子。潜在生态风险指数与地累积指数的结果存在差异,这是由于参考值和参考系统的不同。
6 sediments speciments were sampled from Xiangjiang River based on the distribution of industrial park for analyzing Cu,Pb,Zn,Cd,Ni,Cr,As,Hg.The potential ecological risk index and the index of geoaccumulation were used to evaluate the contamination level of heavy metals in the sediments.The results showed that the sediments of Xiangjiang River in Changzhutan had been seriously polluted by heavy metals.The orders of the degree of contamination and potential ecological risk were CdZnCuPb=NiHgAs=Cr and CdHgPdCuZnAsCr,among which Cd was the prediment factor.There was different between the result of the potential ecological risk index and the index of geoaccumulation,which was due to the difference of reference value and reference system.