Abstract:Heavy metals had been monitored and analyzed in waste gas and soil from a typical ewaste dismantling region. The results showed that in the process of ewaste dismantling, the total amount of heavy metals discharge ranged from high to low was Sn,Cr,Ni,Pb,Cu,Sb,Mn,As,Cd and Hg. Also, heavy metals were discharged in the main processes of ewaste dismantling process, and the emissions from high to low are heated baking board process, pyrometallurgical smelting process, plastic granulation process and hydrometallurgical process. The average contents of Hg, Cd, Cu and Pb in soils of surrounding area exceeded the risk screening values of soil pollution in the Pearl River Delta, correlation analysis and principal component analysis results showed that Pb, Cu, Cd, Ni, Zn were derived from electronic waste dismantling process, including wastewater discharge, atmospheric dry and wet deposition, solid waste illegal stacking and etc. Cr can mainly came from soil parent material, Hg has sources other than ewaste. The results of soil capacity evaluation showed that in this region the soil capacity of As and Cr was relatively large, while the soil capacity of Zn and Ni was relatively small, which had reached the warning value. Soil capacity of other heavy metals were overload. Heavy metal pollution of soil in this region should be paid more attention and control measures should be developed as soon as possible.