Situation of Heavy Metals Pollution in the Agricultural Soil of Hancheng City

In order to study the soil distribution characteristics of heavy metals in Hancheng city, contents of 5 heavy mentals in surface sediments were sampled and analyzed. The single factor pollution index and comprehensive pollution index were used to evaluate the data. The results showed that the pollution of Cr, Cu were serious. Pb was in the state of light pollution and the levels of Zn, Mn were the lowest. Analyzed with the comprehensive pollution index, the heavy metal pollution of agricultural soil in Hancheng city was in the state of high pollution. With the view of spatial distribution, heavy metal pollution in the southwest area of Hancheng was the most serious, and the northwest area was the lightest. It was suggested that appropriate measures should be taken to prevent and control metal pollution in the region to avoid making harm to human health.