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《Journal of Chengdu University of Technology(Science & Technology Edition)》 2005-04
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Evaluation of the current quality about heavy metals in urban soils of Chengdu, China

SHI Ze-ming, NI Shi-jun, ZHANG Cheng-jiang, ZENG Ying, WU TaoDepartment of Geochemistry, Chengdu University of Technology, Chengdu 610059, China  
Based on the urban soil research, the authors have found the contents and spatial distribution of heavy metals in urban soils of Chengdu. The results show that the average concentrations of total Hg, Cd, As, Cr, Pb, Cu, Zn are 0.31 μg/g, 0.36 μg/g, 11.0 μg/g, 60 μg/g, 76.9 μg/g, 42.0 μg/g, 224 μg/g, respectively. Except Cd, the average contents of the other heavy metals are all under the national grade Ⅱ quality standard. The percent of Cd exchangeable form is 33.16%. Compared with the other cities in the world, the authors find that the concentration of Hg in Chengdu is relatively higher, that of Cr, Cu, Zn middle and that of Cd, As, Pb relatively lower. The pollution is mainly caused by industry layout, burning of coal and traffic, et al.
【Fund】: 中国地质调查局资助项目(200314200015)
【CateGory Index】: X53
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