2011•Guizhou nongye kexueRequires access
Evaluation of Heavy Metals Pollution of Surface Soil in Central Tibet Mining Area
Liu Zong-lei
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Abstract
The heavy metal concentrations(Cu,Zn,Cd and Pb) in central Tibet mining area were measured and the heavy metal degrees of pollution were evaluated with single-facter pollution index and comprehensive pollution index to grasp the heavy metal of distribution and pollution in soil.The results showed that the pollution degrees of Cu,Zn and Cr were heavy except Pb,the degrees of pollution were in the sequence of CdCuZnPb,and there was combined pollution among the four heavy metals.