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Chinese Agricultural Science Bulletin ›› 2010, Vol. 26 ›› Issue (9): 352-356.

Special Issue: 土壤重金属污染 农业生态

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Evaluation of heavy metal in top soil of different ecological function areas in Qingdao

Qian Yi, Zhao Shigang   

  • Received:2009-12-11 Revised:2009-12-16 Online:2010-05-05 Published:2010-05-05

Abstract:

This paper have analysised the distribution and the pollution level of Cd, Cu, Ni, Pb and Zn in industry area, business area, resident area,agriculture area and tour area in the city of Qingdao;we evaluated the pollution of heavy metal in soil by using Mul1er geoaceumulation index;the concentration of Cd was higher than national soil standard two in every ecological function area, The content order of Cd is industry area (0.807mg/kg)>business area (0.748 mg/kg)>resident area(0.642 mg/kg) > agriculture area (0.532 mg/kg) >tour area(0.356 mg/k g). The concentration of Cr, Cu, Ni, Pb, Zn were lower than national soil standard two. Cd and Ni are Mild–Medium polution in every ecological function area and their geoaceumulation index are one, the plution level of Cr,Cu and Pb are diffent, Zn is no polution in every ecological function area and its geoaceumulation index is zero according to Mul1er geoaceumulation index;Industry area, business area, resident area, agriculture area and tour area in the city of Qingdao are polluted by Cd and Ni,but not polluted by Zn.