彭州市蔬菜基地土壤中重金属污染评价

Assessment of metals pollution in soil of Pengzhou city

为了解彭州市蔬菜基地土壤重金属(铜、铅、镉、铬、汞、砷)的污染现状与程度,对该区蔬菜基地土壤进行采样分析。结果表明该区土壤存在汞、镉污染,其污染程度达到国家规定的三级标准,属于轻度污染;铜仅在对照区大宝乡土壤中存在污染,亦属于轻度污染。铜污染是由于铜矿开采产生,汞、镉的污染尚不清楚,需进一步调查分析。

In order to assess the pollution of hazardous heavy metals in the soil of non-contaminating vegetable base, soil samples were taken from Chengdu suburb and the hazardous heavy metals (Cu,Hg,Cd,Cr,As,Pb) were analyzed. The results showed that the primary problematic heavy metals in the soils were mercury and cadmium, giving values higher than the allowable criteria. Copper pollution was detected in the mountain areas adjacent to the copper mines. The reason of Hg and Cd pollution is not clear, and still need...