商洛市不同功能区土壤重金属污染状况研究

摘要

At the different function areas of Shangluo City, heavy metal pollution in soil was evaluated with the single factor pollution index and comprehensive pollution index. From the single pollution index, the commercial, cultural and educational areas were mainly Hg-based. The industrial area was mainly Cu, Pb and Zn. The park area was mainly Cd, while heavy metal pollution in soil in agricultural area was lower than the stipulated pollution level. The result indicated that the comprehensive pollution index was 0.98, heavy metals in soil were still in a clean state, but it has already been on the alert level.%以商洛市不同功能区的土壤为研究对象，采用单因子污染指数和综合污染指数法对土壤重金属污染现状进行评价。结果表明，从单因子污染指数来看，商业区和文教区的土壤重金属污染以Hg为主，工业区的土壤重金属污染以Cu、Pb、Zn为主，公园的土壤重金属污染以Cd为主，而农业区土壤中各重金属尚未达到污染级别。多因子综合污染指数为0.98，土壤重金属处于尚清洁状态，但已经处于警戒水平。