Research on urban soil heavy metals contamination and their spatial distribution in Shenyang

To evaluate the urban soil heavy metals' contamination,280 topsoils are sampled in the approximately 1000km2 urban zone of Shenyang.The total and available concentrations of heavy metals Cd,Cr,Pb,Cu,Zn,Ni and As are determined by ICP for each soil sample.Geostatistics are used to analyze the data and to map the spatial distribution of the soil heavy metals.And the spatial distribution law is also discussed.The results can also be used in assessing the risk of heavy metals contaminated soils,and the associated environmental and public health risks in Shenyang.