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Evaluation of Heavy Metal Pollution of Reclaimed Soil in Anshan Iron Mine Region

GUO Dong-yan1,LI Yue-fen1,WANG Dong-yan1,SUN Chao1,FU Qiang1,HE Hong-jun21.College of Earth Sciences,Jilin University,Changchun 130061,China;2.Jingyu Couty Land and Resources Bureau of Jilin Province,Jingyu 135200,China  
Based on the investigation of ecological environment in reclaimed soil of iron mine regions,soil samples were collected and tested.Cd,Hg,Pb,Cu,Cr and Zn were chosen as the evaluation indexes.In view of the diversity of the heavy metal pollution evaluation indexes and incompatibility of evaluating results given by single index,the authors establish the heavy metal pollution evaluation model using the matter-element and extension method.The results show that the reclaimed soil of iron mine regions is at clean or good level,lower pollution.By comparing the matter-element and extension means with fuzzy comprehensive assessment,the reliability of the evaluation model is verified.The matter-element model can eliminate the artificial factors in evaluation process,which increases the precision in the evaluation.The study illustrates that using matter-element model for the heavy metal pollution evaluation of soil is a better way.
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