湖州市区菜地土壤重金属含量调查与评价

Investigation and Evaluation of the Content of Heavy Metal in Soil for Vegetable Growth

对湖州市区菜地土样分析结果表明,菜地土壤环境质量总体良好,平均综合污染指数为0.67,有64.7%的土壤属于清洁地范围,23.5%为尚清洁范围,11.8%属轻度污染。菜地主要重金属污染物为Hg,平均单项污染指数为0.74。除As外,耕层土壤中Cd、Cr、Cu、Hg、Pb含量高于亚耕层含量。

The analysis remit showed that the soil samples from vegetable growth in Huzhou suburb was generally safe, the average integration pollution index was 0.67, there were 64.7% of the soil samples without pollution,23.5% samiSles were almost non-pollution and 11.8% samples were light pollution. The main heavy metal pollutant was Hg, with a mean single pollution index of 0.74. The content of Cd, Cr, Cu, Hg and Pb in the topsoil was higher than in the subsoil.