煤矿周围土壤中铜、锌污染状况及特征分析

THE CONTAMINATISON AND CHARACTERISTICS ANALYSIS OF Cu AND Zn OF SOILS AROUND COAL MINE

以陕西省神木县西沟乡六道沟流域作为研究区域,对六道沟煤矿周围的土壤中的铜、锌的含量进行了研究,着重分析了煤矿开采是否对周围土壤造成重金属污染以及重金属在煤矿周围土壤中的分布特征。结果表明该区域仅有部分土壤遭受铜、锌的轻度污染,即煤矿开采会对周围土壤造成不同程度的污染,且铜、锌含量随着距煤矿距离的增大而递减,并随采样深度增加而递减。

This study based in Shenmu County Xigou Country Liudaogou Watershed of Shanxi Province.In order to investigate heavy metals content concerning Cu、Zn,soil samples were collected in the vicinity of Xigou country Liudaogou watershed coal mine,Emphasized to analyze the mine in mineral area whether result in the heavy metals contamination and the characteristic of distribution of heavy metals in the mineral area surroundings soil.These evidences indicated that the level of contamination in this area was in low-grade.In other words,mining causes various heavy metal pollution to ambient soil,and heavy metal pollution has a trend that the further from the mining area,the weaker the contamination is;and with the sampling depth tended to decrease.