The risk of metal pollutants such as Pb, As, Cd, Zn, Cu, Cr, Hg in mining area of Zhehai Town, Huize County, Yunnan Province were calculated according to different exposure pathways. The health risk level was analyzed by risk assessment. The results showed that Zn, Cu and Pb had lower average risk to human health in all exposure pathways. In residential site, the comprehensive carcinogenic risk of Cd and As were 2.6× 10^-5 , 3.3×10^-4 , respectively. As and Cd pollution in this site were potentially harmful to the health of sensitive receptors.
The Administration and Technique of Environmental Monitoring
Health risk assessment
Typical mining area in Zhehai