In recent years, there have been frequent incidents of heavy metal pollution of soil in China, posing a threat to economic development, the ecological environment, food safety, national health and even social stability.

The results of the national soil pollution survey released in 2014 showed that soil pollution in some areas of China is heavy, the quality of soil environment of arable land is worrisome, and the soil environment of industrial and mining waste land is outstanding.

The national soil total point exceeds the standard rate of 16.1%, with no machine type mainly, accounting for 82.8% of all exceeding the standard point.

Mainly cadmium, mercury, arsenic, copper, lead, chromium, zinc, nickel 8 kinds of inorganic pollutants. Therefore, it is of great significance to carry out large-scale treatment of areas contaminated by heavy metals.

Soil heavy metal testing as an effective means of detecting soil quality can be used to analyse the content of various types of pollutants in the soil through the detection of the degree of environmental pollution in the soil, and to provide a reference basis for the management and prevention of soil environmental pollution.