A review of heavy metal contaminations in urban soils, urban road dusts and agricultural soils from China

The results indicate that most the concentrations of Cr, Ni, Cu, Pb, Zn, As, Hg and Cd are higher than their background values of soil in China

Binggan Wei; Linsheng Yang

2009

Scholarcy highlights

  • This paper reviews quite a few heavy metal contamination related studies in several cities from China over the past 10 years
  • The results indicate that most the concentrations of Cr, Ni, Cu, Pb, Zn, As, Hg and Cd are higher than their background values of soil in China
  • The contamination levels of the heavy metals vary in a large range
  • The geoaccumulation index shows that the contamination of Cr, Ni, Cu, Pb, Zn and Cd is widespread in urban soils and urban road dusts of the cities
  • Agricultural soils are significantly influenced by Cd, Hg and Pb derived from anthropogenic activities
  • The comparison of the integrated pollution index of heavy metals in urban soils and urban road dusts of Shanghai, Hangzhou, Guangzhou and Hongkong reveals that the contamination levels of the metals in urban road dusts are higher than that in urban soils in the cities
  • The main sources of the metals in urban soils, urban road dusts and agricultural soils are different

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