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Mapping of Cu and Pb Contaminations in Soil Using Combined Geochemistry, Topography, and Remote Sensing: A Case Study in the Le’an River Floodplain, China

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School of Resource and Environmental Science, Wuhan University, Luoyu Road 129, Wuhan 430079, China
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Key Laboratory of Geographical Information System, Ministry of Education, Wuhan University, Luoyu Road 129, Wuhan 430079, China
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Author to whom correspondence should be addressed.
Int. J. Environ. Res. Public Health 2012, 9(5), 1874-1886; https://doi.org/10.3390/ijerph9051874
Received: 11 March 2012 / Revised: 20 April 2012 / Accepted: 23 April 2012 / Published: 16 May 2012
Heavy metal pollution in soil is becoming a widely concerning environmental problem in China. The aim of this study is to integrate multiple sources of data, namely total Cu and Pb contents, digital elevation model (DEM) data, remote sensing image and interpreted land-use data, for mapping the spatial distribution of total Cu and Pb contamination in top soil along the Le’an River and its branches. Combined with geographical analyses and watershed delineation, the source and transportation route of pollutants are identified. Regions at high risk of Cu or Pb pollution are suggested. Results reveal that topography is the major factor that controls the spatial distribution of Cu and Pb. Watershed delineation shows evidence that the streamflow resulting from rainfall is the major carrier of metal pollutants. View Full-Text
Keywords: soil; heavy metal; contamination; digital elevation model; mapping soil; heavy metal; contamination; digital elevation model; mapping
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Chen, Y.; Liu, Y.; Liu, Y.; Lin, A.; Kong, X.; Liu, D.; Li, X.; Zhang, Y.; Gao, Y.; Wang, D. Mapping of Cu and Pb Contaminations in Soil Using Combined Geochemistry, Topography, and Remote Sensing: A Case Study in the Le’an River Floodplain, China. Int. J. Environ. Res. Public Health 2012, 9, 1874-1886.

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