The Determination and Analyze of the Heavy Metal Element in the Soil of Mail Road Sections Around Siping

The heavy metals in soil on both sides of the roads in three directions from Siping to Changchun,Shenyang and Liaoyuan were determined and analyzed.In this paper,content level of the heavy metallic element(Pb,Zn,Cd,Cr) of the sample were determined,and the level of pollution and class of pollution of the soil were appraised according to background value.The result indicated thatin soil on both sides of the road in selection region,the heavy metal Zn,Pb,Cr three kind of elements pollution degrees are secure,but the cadmium content exceeds the allowed figure seriously,which should be took more attention.