Presented paper

Assessment of Water Quality in the Witwatersrand Basin using Inorganic Contaminants

Ligavha-Mbelengwa, Lufuno (1); Madzivire, Godfrey (1,2); Mello, Tebogo (1); Coetzee, Henk (1)
1: Council for Geoscience, Water and Environment Unit, 280 Pretoria Street, Silverton, Pretoria, South Africa; 2: University of South Africa, Department of Environmental Science, 28 Pioneer Ave, Roodepoort, South Africa

This study evaluated the quality of the surface water resources in the East Rand. Multivariate statistical tools (principal component analysis and hierarchical cluster analysis) were used to investigate how mining and other factors negatively influence the surface water quality. The water quality index (WQI) was used to assess how suitable the water is for domestic use. The results obtained indicate that in addition to mining activities, sewage discharges and industrial effluents also have a negative impact in the surface water quality. Poor water quality from anthropogenic sources should be properly treated before being discharged into the surface water resources.


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