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Soil Lead Concentration Anomaly Regions in Agricultural Area of Central China
Abstract:
In this study, the spatial distribution of soil lead (Pb) concentration in topsoil in Henan, China, was surveyed and analyzed using geostatistics and geography information systems (GIS). The concentrations of Pb in topsoil were investigated based on 603 samples. Pb mean concentration of 28.2 mg/kg in surface soils was found to be higher than those in global soils, which ranged from 16.31376.9 mg/kg.. From spatial analysis results, soil lead concentration anomaly regions were found in Henan Province, central China. The classification of a soil Pb environmental risk in an area was likewise presented based on the different levels of environmental quality of Pb and was done by GIS technology. Accordingly, there is a higher local concentration of Pb in the surrounding areas of Luoyang and Nanyang, which is historic mining area.
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3767-3770
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Online since:
August 2013
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© 2013 Trans Tech Publications Ltd. All Rights Reserved
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