Estimation of potential cadmium contamination using an integrated RUSLE, GIS and remote sensing technique in a remote watershed area: a case study of the Mae Tao Basin, Thailand
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Publication Details
Author list: Somprasong K., Chaiwiwatworakul P.
Publisher: Springer
Publication year: 2015
Journal: Environmental Earth Sciences (1866-6280)
Volume number: 73
Issue number: 8
Start page: 4805
End page: 4818
Number of pages: 14
ISSN: 1866-6280
eISSN: 1866-6299
Languages: English-Great Britain (EN-GB)
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Abstract
The Mae Tao Basin in Mae Sot district, Thailand, is a cadmium contaminated area, where the dominant carrier of the contaminant is sediment leached into the water resources by surface runoff. The Revised Universal Soil Loss Equation incorporated with remote sensing and geographic information system software were applied to calculate the potential erosion that can occur in the Mae Tao Basin. The erosion potential was combined with the cadmium concentration profile, obtained using secondary data from the Land Development Department, Royal Thai Survey Department and Meteorological Department of Thailand, to calculate the potential cadmium flux due to erosion. The results indicate that maximum value of potential cadmium flux due to erosion occurred in the mining production area of the Mae Tao Basin. In addition, there is significant evidence that the upstream area of the basin has the potential to release cadmium during incidents of erosion. ฉ 2014, Springer-Verlag Berlin Heidelberg.
Keywords
Contamination flux, Erosion model, Heavy metal assessment, LS-factor
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