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《Earth and Environment》 2010-04
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Influences of Different Urban Functions on the Distribution of Heavy Metals in Soils of Guiyang

LI Xiao-yan, CAO Yi-jin, QI Le, SHU Fu (School of Geographic and Environmental Sciences, Guizhou Normal University, Guiyang 550001, China)  
Soil samples were collected from different functional zones for assessing the distribution and variations of heavy metals. The results showed that soil concentrations of As(21.8 mg/kg), Ni(47.1 mg/kg)and Pb(139 mg/kg)are highest in school campuses; Cd(1.48 mg/kg)and Zn(314 mg/kg)are highest in industrial zones; Cu(115 mg/kg)is highest in municipal solid waste yards. Heavy metals are relatively seriously accumulated in soils in industrial zones, school campuses, municipal solid waste yards and road intersections. The main pollution-induced heavy metals are Cd, Pb and Cu in industrial zones, Pb and Cd in school campuses and road intersections, and Cd and Zn in solid waste yards, respectively. Cd, Zn and Pb in urban soils are relatively seriously affected by human activities and the differentiation of Pb in different functional areas is highest due to soil uses.
【Fund】: 贵州省科学技术基金(黔科合J字[2008]2238)
【CateGory Index】: X53
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