Evaluation of soil environment quality in mining districts

In this paper,the Datong and Changzhi mining district are chosen as the study area.On the basis of soil pollution around the deposit sites of coal refuse and the soil nutrition in the subsidence areas,the soil environment quality is estimated.The results show that the obvious pollutants are SO2-4,Cu,Zn,etc.Pollution area of SO2-4 is larger than that of others.The contents of Cu,Zn are affected by environment background.Other pollutants such as NO-3,As,Pb,Cd,etc,a...