期刊论文

中文

环境化学

0254-6108

2014

33

8

1307-1313

10.7524/j.issn.0254-6108.2014.08.017

2012AA101404-5:国家高技术研究发展计划（863计划） 201009047:环保部公益基金 21007014:国家自然科学基金 B0702:国家自然科学基金

本校为第一机构

为了探究湘南某铅锌矿区尾砂坝垮坝之后，该区域周围的农业土壤中重金属污染情况，在该矿区周围采集农业土壤，分析土壤中Pb、Zn、Cu、Cd和As的含量，分别运用单因子指数和潜在生态风险指数评价土壤重金属的污染状况和潜在生态风险.结果表明，土壤中Pb、Zn、Cu、Cd、As的平均含量分别为566.82、285.90、69.00、10.29、670.12 mg?kg~(-1),该矿区周围的农业土壤仍旧受到不同程度重金属污染，其中Cd的污染指数最高；所有农业土壤中Pb、Zn、Cu、Cd和As的潜在生态危害性顺序是Cd>As>Pb>Cu>Zn，其中Cd和As是主要的生态风险的贡献因子.该区域的农业土壤受到重金属污染程度并没有随着时间而有所减轻.

To investigate the soil pollution by heavy metals after the collapse of the tailing dam, the concentrations of Pb, Zn, Cu, Cd, As in agricultural soils collected from a Pb/Zn mine area in south Hunan province were determined, and the single method index and Hakanson′s ecological risk index were employed. The results indicated that the average concentrations of Pb, Zn, Cu, Cd, As in soils were 566. 82, 285. 90, 69. 00, 10. 29, 670？12 mg·kg-1 , respectively. The single method index demonstrated that those agricultural soils were polluted serio...