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Geostatistical and multivariate analysis of soil heavy metal contamination near coal mining area, Northeastern India

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Title Geostatistical and multivariate analysis of soil heavy metal contamination near coal mining area, Northeastern India
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Creator S.K. Reza, Utpal Baruah, S.K. Singh and T.H. Das
 
Subject Heavy metals, Geostatistics, Risk assessment, Principal component, Multivariate analysis
 
Description Not Available
The spatial distribution and hazard assessment of heavy metals in the soils of surrounding agricultural fields affected by mine drainage of Ledo coal mining area
of Tinsukia district, Assam, India, were investigated using statistics, geostatistics and geographic information system techniques. The amounts of Cr, Cd, Ni and Pb were
determined from 83 soil samples collected within the contaminated area. The maps based on ordinary kriging showed that high concentrations of heavy metals were
located in the low-lying paddy field and near coal mining site. Indicator kriged probability maps were prepared based on the concentrations to exceed permissible limit (MPL). It
was seen that more than 95 % of the studied area has a higher than 50 % probability to exceed the MPL value of Pb and Ni. Multivariate statistical analyses and principal
component analysis suggest that Cd and Pb are derived from anthropogenic sources, particularly coal miningactivities, whereas Ni and Cr are derived from lithogenic and/or anthropogenic sources.
 
Date 2020-05-13T14:48:13Z
2020-05-13T14:48:13Z
2015-01-01
 
Type Article
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/35600
 
Language English
 
Relation Not Available;
 
Publisher Springer