Abstract
This paper includes the analysis of total content of Cd element of 102 samples in the surface soil of farmland around the slag field. We evaluated the contamination of Cd of each samples and the space distribution with the potential ecological risk index method based on ArcGIS soft. The results showed that: average of potential ecological risk index of Cd is 241.4, Moderate ecological risk area accounted for 2.7% of the study area, strong ecological risk area of the region accounted for 30.1% of the study area, 22.2% of the study area had the considerable ecological risk, and the rest 39% of the study area had the extremely strong ecological risk.
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