Application of Grey Relational Analysis in the Evaluation of Heavy Metal Pollution in Soil of Coal Mine

摘要

This study introduces the application of the gray relational analysis method in the evaluation of heavy metals pollution in soil,taking Huainan mining area as an example.The results show that As and Cd are the main pollutants in the heavy metal pollution in soil.The overall pollution condition in mine shows that Xinzhuangzi coal mine is the most serious,followed by Pan Yi mine,Guqiao Mine relatively light.The index of geoaccumulation verifies that the evaluation based on the gray correlation analysis method can practical comprehensive reflect the pollution status of heavy metals in soil.It is an method of objective,practical and accurate.