Source Analysis of Heavy Metals in Mining Soil Based on PMF Model
In this study,the content of heavy metals in soil and spinach samples collected from farmland in a mining area was determined,and the sources of heavy metals were analyzed based on correlation analysis and PMF model.The results showed that the contents of Cd,As,Zn,Cr and Cu in the soil were significantly en-riched,which were 5.7,4.4,2.4,1.5 and 1.3 times of the local soil background value,respectively.The correlation analysis results showed that Cu,Zn,As and Cd in the study area were correlated to some extent,and might have the same pollution source.The results by PMF model showed that heavy metals in the soil of the study area mainly came from the source of industrial pollution,soil parent material,traffic pollution and agricultural pollution,the contribution rates of heavy metal pollution to local soil were 39.8％,22.8％,21.6％and 15.8％,respectively.
Heavy metalsSoilsPMF modelSource analysisCoal mine
万方数据
维普
