Title: Distribution Characteristics and Risk Evaluation of Heavy Metals in Soil of Sewage Irrigation Area of Taiyuan City
Abstract: The pollution status of heavy metals of Pb,Zn,Cu,Ni,Mn,Cr,As,Hg and Cd in soil in sewage irrigation area of Taiyuan city were investigated and assessed in this paper.The results showed that the average contents of heavy metals in the soils were Pb 24.95 mg/kg,Zn 83.86 mg/kg,Cu 28.33 mg/kg,Ni 33.30 mg/kg,Mn 682.16 mg/kg,Cr 80.08 mg/kg,As 12.46 mg/kg,Hg 0.09 mg/kg,and Cd 0.19 mg/kg.The Hg and Cd are the main contamination elements,with the single pollution index of 2.74 and 2.42,which is medium level pollution,and the single ecological risk index are 109.54 and 72.71 respectively,showing this area is in medium ecological risk.The highest pollution index of Hg is 4.89 in Jinyuan district,with the single ecological risk indices of 195.57;the highest pollution index of Cd is 3.09 in Xiaodian district,with the single ecological risk indices of 92.59.The results also indicated that Hg and Cd had caused some relevant ecological risk by comparing the pollution index with the ecological risk indices of heavy metals.
Publication Year: 2012
Publication Date: 2012-01-01
Language: en
Type: article
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Cited By Count: 1
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