GYIG OpenIR  > 环境地球化学国家重点实验室
Distribution and sequential extraction of some heavy metals in urban soils of Guiyang City, China
WU Yongfeng;   LIU Congqiang;  TU Chenglong
2008
Source PublicationChinese Journal of Geochemistry
Volume27Issue:4Pages:401-406
Abstract

Sixty-two soil samples collected from different functional zones of Guiyang were analyzed for total concentrations and sequential extraction of Cr, Cu, Pb, Zn and Cd by ICP spectrometry. The average total concentrations of Cr, Cu, Pb, Zn and Cd in the soils of Guiyang were 92.9, 51.6, 44.1, 139.3 and 0.28 mg/kg, respectively. The soils have been polluted by Cr, Cu, Pb, Zn and Cd to some extent in comparison with the background values of Guiyang. Significant differences were recognized in the concentrations of Cr, Cu, Pb, Zn and Cd in different functional zones. As for the sequential extraction, Cr, Cu and Zn were present mainly in the residual fraction, and Pb was present mainly in the oxidizable fraction. The reducible fraction of Cd accounts for 47.5%, and the residual fraction is lowest. The mobility and bioavailability of heavy metals follow the order of Cd>Pb>Cu>Cr>Zn.

KeywordSoil Heavy Metal Speciation Guiyang City
Language英语
Document Type期刊论文
Identifierhttp://ir.gyig.ac.cn/handle/42920512-1/8315
Collection环境地球化学国家重点实验室
Affiliation1.State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China
2.Graduate School of Chinese Academy of Sciences, Beijing 100039, China
Recommended Citation
GB/T 7714
WU Yongfeng; LIU Congqiang;TU Chenglong. Distribution and sequential extraction of some heavy metals in urban soils of Guiyang City, China[J]. Chinese Journal of Geochemistry,2008,27(4):401-406.
APA WU Yongfeng; LIU Congqiang;TU Chenglong.(2008).Distribution and sequential extraction of some heavy metals in urban soils of Guiyang City, China.Chinese Journal of Geochemistry,27(4),401-406.
MLA WU Yongfeng; LIU Congqiang;TU Chenglong."Distribution and sequential extraction of some heavy metals in urban soils of Guiyang City, China".Chinese Journal of Geochemistry 27.4(2008):401-406.
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