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Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/6306

Title: Microbial water quality in the upper Olifants River catchment: implications for health
Authors: Le Roux, WJ
Schaefer, LM
Genthe, B
Keywords: Faecal indicator organisms
Olifants river catchment
Microbial risk assessment
Microbial water quality
Issue Date: Sep-2012
Publisher: Academic Journals
Citation: Le Roux, WJ, Schaefer, LM and Genthe, B. Microbial water quality in the upper Olifants River catchment: implications for health. African Journal of Microbiology Research, vol. 6(36), pp. 6580-6588
Series/Report no.: Workflow;9850
Abstract: The Olifants river has been described as one of the most environmentally polluted rivers in Southern Africa, particularly in the upper catchment. Untreated water from the catchment may be used for many purposes including irrigation, recreation, consumption, and domestic purposes. As poor water remains a leading cause of morbidity and mortality, it is essential to understand the health risks that the water users in the Olifants catchment are exposed to. The aim of this research was to identify the extent of the microbiological pollution in the upper Olifants River catchment and determine the sources of the microbial contaminants by monitoring faecal indicator levels and selected water-borne pathogens. It was shown that sections of the upper Olifants River catchment are highly contaminated with faecal indicator bacteria and pathogenic microorganisms. A quantitative microbial risk assessment was also performed and it showed that the polluted waters pose an unacceptably high risk to water users within this catchment. In all regions where extreme levels of faecal pollution were observed, the source could be traced back to inadequate wastewater treatment. The microbial water quality in the upper Olifants River catchment could therefore be remediated to a large extent by ensuring proper functioning of wastewater treatment works.
Description: Copyright: 2012 Academic Journals. All works published by Academic Journals are under the terms of the Creative Commons Attribution License. This permits anyone to copy, distribute, transmit and adapt the work provided the original work and source is appropriately cited.
URI: http://www.academicjournals.org/AJMR/PDF/Pdf2012/20%20Sept/Roux%20et%20al.pdf
ISSN: 1996-0808
Appears in Collections:Pollution and waste
Environmental management
Water resources and human health
General science, engineering & technology

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