Study on Pollution and Influence of Soil Heavy Metals of Metal Smelting Enterprises in Industry Zone
In order to evaluate the pollution of soil heavy metals in metal smelting enterprises of industry zone in Ningxia,As,Cd,Cu,Ph,Hg and Ni were selected as the main pollutants by descriptive statistics,single item evaluation,nemerow comprehensive pollution Index and soil accumulation.The results showed that As,Cd,Cu,Ph,As,and Hg polluted different degrees in the study area.Cd content was 160 times higher than the soil background value.Meanwhile the Pn was 166 times,and Igeo accounted for 33.3％of the overall proportion,which showed serious pollution.In summary,the study area was severely affected by human activities,and Cd has been enriched in a strictly controlled class.
metal smeltingsoil heavy metalspollution assessment
NETL
NSTL
万方数据
