煤矸石堆周围土壤重金属污染特征分析——以焦作市中马村矿为例

Analysis of heavy metal pollution in vicinity soil of coal gangue dump——Taking Zhongmacun Mine of Jiaozuo as an example

利用扇形布点法采集了焦作市中马村矿矸石堆周围土壤 ,对其中的Cr、Pb、Cu、Mn 4种重金属含量进行了研究。结果表明 :煤矸石的堆放对周围土壤造成不同程度的污染 ,重金属的含量随离矸石堆距离增大呈减小的趋势 ,主要受到风向的影响。

In order to investigate heavy metal content concerning Cr, Pb, Cu and Mn, soil samples were collected using fan shape allocation method in the vicinity of Zhongmacun Mine, Jiaozuo. The results show that coal gangue pile causes various heavy metal pollution to ambient soil, and that heavy metal pollution has a trend that the farther from the pile, the weaker the contamination is. The main factor affecting the movement of heavy metals in topsoil is the prevailing wind.