Analysis of Soil's Heavy Metal Pollution Based on Factor Analysis

The factor analysis model for different levels of pollution to analyze its sources is applied.It adopts spss software to analyze the main influence factors.The causes of pollution is analyzed,and the names of the source of pollution is determined.The results show that the low contaminated areas are less affected by human activities,and high pollution is full of mixed contamination.Trunk roads and industrial areas are heavier pollution.They are affected by traffic pollution and smelters,chemical industrial emissions.It is recommended that take effective measures to reduce its heavy metal pollution.