基于污染指数法和GIS技术评价江西德兴矿区土壤重金属污染

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Assessing Heavy Metals Contamination of Soils Based on the Pollution Index and GIS Methods in Dexing Mines, Jiangxi Province, China

CHEN Cui-hua¹, NI Shi-jun², HE Bin-bin³, ZHANG Cheng-jiang²

1.College of Earth Sciences, Chengdu University of Technology, Chengdu 610059, China;2.College of Applied Nuclear Techniques & Automatic Engineering, Chengdu University of Technology, Chengdu 610059, China;3.Institue of GeoSpatial Information Science and Technology, University of Electronic Science and Technology of China, Chengdu 610054, China

Received:2007-04-29 Revised:1900-01-01 Online:2008-01-26 Published:2008-01-26
Contact: CHEN Cui-hua

Abstract

Abstract: In order to assess the extent of heavy metals contamination resulting from past mining activity in Dexing region, nine hundred nineteen soil samples were collected and analyzed for the content of As, Hg, Cd, Cr, Zn, Cu and Pb in 2004. Heavy metal levels were determined using inductively couple plasma-atomic emission spectrometry and X-ray fluorescence spectrometry procedures. The current assessment of heavy metals contamination in soils was performed from three aspects, original testing data, pollution index (single-factor pollution index and multiple pollution index ) and contamination spatial analysis by means of GIS methods, respectively. The results of assessment indicates consistently that there were different extents of contamination of As, Cd, Zn and Cu, especially in the areas of the Dexing mines, coal mines along the lower courses Le’an River, coal mines in the northwest and the areas around battery factory.

Key words: heavy metals, environment assessment, pollution index, GIS, Dexing, Jiangxi

CLC Number:

X825

CHEN Cui-hua, NI Shi-jun, HE Bin-bin, ZHANG Cheng-jiang. Assessing Heavy Metals Contamination of Soils Based on the Pollution Index and GIS Methods in Dexing Mines, Jiangxi Province, China[J].J4, 2008, 38(1): 105-01050111.

References

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