Assessment of Sources,Spatial Distribution and Ecological Risk of Heavy Metals in Soils in a Typical Industry-based City of Shandong Province,Eastern China
A total of 106 samples were collected from surface soils in Gangcheng District,Laiwu city( a Typical industry-based city of Shandong Province,Eastern China),and the contents of 9 heavy metals including As,Cd,Co,Cr,Cu,Hg,Ni,Pb and Zn were determined. Multivariate analysis and geostatistics were applied to examine the sources and spatial distributions of heavy metals in soils; and the assessment on ecological risk of heavy metals was carried out using Hakanson's method. The average concentrations of 9heavy me...