中山市不同功能区农田土壤铅污染评价

Evaluation of Pb Pollution in Farmland Soils of Different Functional Zones in Zhongshan

使用ICP-MS法对中山市居民区、工业区、种植区农田土壤中铅含量进行了测定,并用单项污染指数和地质累积指数法对农田土壤铅污染情况进行了评价。单项污染指数法表明所研究农田土壤中铅均到达土壤环境质量二级标准。地质累积指数法表明所研究农田土壤的铅污染属于无污染到偏中污染水平,工业区污染是中山市农田土壤铅的主要污染。

The Pb contents in farmland soils of residential areas, industrial areas and plant areas in Zhongshan were measured by ICP-MS. The pollution of Pb was assessed with index of single factor pollution and Index of geo-accumulation. Index of single factor pollution showed that all of soils are not exceeded the second standard limit of environmental quality standard for soils, but index of geo-accumulation showed that they belong to scopes from no pollution to partial medium pollution.