采用指数评价法对土壤重金属的评价——以农安县为例

Evaluation of Heavy Metals in Soils Using Index Evaluation Method——Taking Nong'an County as an Example

农安县作为吉林省产粮大县,对其土壤污染研究至为重要。文章采用指数评价法对吉林省农安县16乡镇土壤重金属进行评价,得出结论:农安县土壤重金属铅、砷、铬三种重金属均不超标,均属于一级安全清洁标准。镉超标较为严重,且成为全县重金属污染主导因素。

As the major grain-producing counties in jilin province, the research of soil pollution in Nong'an county is important. This paper uses the index evaluation method to measure the heavy metal in soil of the 16 villages and towns in jilin province. Research shows that: The heavy metal——lead, arsenic, chromium do not exceed the standard; They all belong to the first-grade clean and safe standards, while Cadmium greatly exceeded the standard and become the dominant heavy metal pollution factor in this county.