Assessing Heavy Metal Pollution of Agriculture Land in Weicheng Town and the Impact Study of Sichuan-Sanxi Highway

The objective of this study is, basing on the geochemical survey project of agriculture land, to assess the pollution levels of heavy metal in agriculture soil in Weicheng town, Mianyang city. The pollution assessments to soil heavy metals are performed by introducing SF (single factor) and CF (combined factors) pollution index analysis. The evaluation shows that there are obvious differences of heavy metal contamination from one side to another side of the road in local agriculture soil, in which the pollution level in North side of the highway is higher than the south. The analysis also indicates: Cadmium (Cd) pollution in soil of the north side of the road shall be regarded with keeping an eye open.