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Journal of Environmental Science and Health, Part A
Toxic/Hazardous Substances and Environmental Engineering
Volume 42, 2007 - Issue 8
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Original Articles

Statistical characterisation of water quality in Great Usuthu River (Swaziland)

Tomasz Kowalkowski School of Chemistry, Department of Environmental Analytical Chemistry, University of Witwatersrand WITS 2050, South Africa; Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University, Gagarina 7, Toruń, 87-100, Poland
,
Ewa M. Cukrowska School of Chemistry, Department of Environmental Analytical Chemistry, University of Witwatersrand WITS 2050, South Africa
,
Bianka Hlobsile Mkhatshwa The Department of Chemistry, University of Swaziland, P/B 4, Kwaluseni, Swaziland
&
Bogusław Buszewski Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University, Gagarina 7, Toruń, 87-100, Poland
Pages 1065-1072 | Received 14 Dec 2006, Published online: 29 Oct 2007
 
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Abstract

This study was undertaken to investigate the heavy metals pollution in the Great Usuthu River (Swaziland). The influence of major pollution sites were assessed using chemometric methods, namely cluster and discrimination analyses. Levels of lead, chromium, vanadium, cadmium and cobalt were determined in both water and sediment samples. In addition chemical oxygen demand was also determined for the water samples. The statistical methods indicated the major parameters discriminating the sampling sites characteristics and showed the seasonality in the dataset.

Acknowledgments

The authors would like to thank National Research Foundation South Africa for the financial support.

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