Evaluation of heavy metal pollution in soils of agricultural lands in Shenyang and source analysis

Heavy metal contamination has become an important environmental hazard in recent years. Pollution assessment and source analysis of 8 heavy metals in four typical agricultural lands of Shenyang (northwest of China) was carried out in this study. The result indicated: agricultural lands soil subjected to different levels of heavy metal pollution, the pollution extent is Pb>Hg>Zn>Ni=Cu> As>Cd>Cr. The potential risk of heavy metals is a prominent problem for Hg and Cd. Pollution sources related to industrial production and human activities, with a main influence factor transportation.