Choosing 80 soil samples and using HNO3-HF-HClO4 mixture to deal with the samples. The contents of Pb, As, Hg, Cr, Cd, Zn, Cu, Ni , Mo were analyzed by ICP-OES.

• 选择土壤样本80个,采用HNO3-HF-HClO4混酸对土壤样品进行处理,运用等离子体发射光谱仪(ICP-OES)测定土壤样品中Pb、As、Hg、Cr、Cd、Zn、Cu、Ni、Mo的含量,全面系统地评价土壤重金属污染现状。