江西德兴矿区土壤重金属污染的富集因子分析

Enrichment Factor Analysis of Soil Pollution by Heavy Metals in Dexing Mining Area,Jiangxi Province

采用富集因子分析,结合G IS空间分析技术,对江西德兴地区进行了较系统的土壤重金属污染评价。评价结果一致表明,德兴地区有不同程度的的砷、汞、镉、锌、铜和铅重金属污染,尤其以德兴矿区为中心的区域污染最为严重,而铬污染程度小。此外,乐安河中下游沿岸地区、西北方向的煤矿区均有不同程度的重金属污染。

A systematic assessment was made of the soil pollution by heavy metals by using enrichment factor and GIS spatial analysis. The assessment results indicate that there exists heavy metal pollution in different degrees in Dexing region,such as As, Hg, Cd, Zn, Cu, and Pb, especially in the area with Dexing mining area as the center where the pollution is the most serious, but the chromium pollution is light. In addition, heavy metal pollution in different degrees occurs in the areas along the lower and middle reaches of Le＇an River and the coal mining district in northwest direction.