Evaluation of Soil Heavy Metals and Organic Pollutants Contamination in Dakang Town, Jiangyou City

This study is supported by the agriculture geochemical survey project in Dakang town, Jiangyou city. By analyzing the heavy metals and organic pollutants contained in the surface soil, a assessment of soil quality is made in the study area by introducing single-index and comprehensive-index evaluation analysis, as well as by using GIS .The evaluation shows that nearly 1/3 areas of the land in the study area has been seriously polluted, especially exceeds in Cd and Ni ; On the other hand, soil quality decrease in the study area is mainly due to heavy metal contamination and organic pollutants has little impact.