An analysis of ground water quality in a water stressed urban centre: a case of Gweru city, Zimbabwe
Ground water quality conformance to the World Health Organisation standards for drinking water was carried out and inferred to the health risks associated with use of such quality of water. Water samples were collected thrice a month, from nine boreholes, over a period of twelve months and analysed...
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| Language: | English |
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IWA Publishing
2021
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| Online Access: | https://iwaponline.com/wpt/article-abstract/11/2/329/20719/An-analysis-of-ground-water-quality-in-a-water?redirectedFrom=fulltext https://doi.org/10.2166/wpt.2016.038 http://hdl.handle.net/11408/4468 |
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| author | Mukanga, C. Chitata, T. Mudereri, Bester Tawona |
| author_facet | Mukanga, C. Chitata, T. Mudereri, Bester Tawona |
| author_sort | Mukanga, C. |
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| description | Ground water quality conformance to the World Health Organisation standards for drinking water was carried out and inferred to the health risks associated with use of such quality of water. Water samples were collected thrice a month, from nine boreholes, over a period of twelve months and analysed for physical, chemical and biological parameters. Chemical parameters were tested using UV-Vis photometry. Physical parameters were measured using HI9829 waterproof portable logging multi-parameter meter and biological parameters were determined using the Minimal Media ONRG-MUG test and the Membrane Filtration Method (MF). Results shows that total hardness and Fe concentration were above limit in 78% and 56% of the sampled boreholes, respectively. pH, EC, Ca, Cl, Fl, Mn, Mg and Turbidity were within the acceptable WHO limits. Of the sampled boreholes, 67% were not conforming to the Escherichia coli loads recommended for drinking water. Parametric correlations showed strong and significant correlations between chlorides and fluorides (r = 0.68; p < 0.05), Nitrates and Sulphates (r = 0.78; p < 0.05). There is need to treat borehole water to eliminate E. coli and reduce nitrates and total hardness. Furthermore, analysis and monitoring systems to determine temporal variability and health risks, respectively, needs to be put in place. |
| format | Article |
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| institution | My University |
| language | English |
| publishDate | 2021 |
| publisher | IWA Publishing |
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| spelling | ir-11408-44682022-06-27T13:49:06Z An analysis of ground water quality in a water stressed urban centre: a case of Gweru city, Zimbabwe Mukanga, C. Chitata, T. Mudereri, Bester Tawona Borehole Ground water use UV-Vis spectrophotometry Water scarcity Water quality Ground water quality conformance to the World Health Organisation standards for drinking water was carried out and inferred to the health risks associated with use of such quality of water. Water samples were collected thrice a month, from nine boreholes, over a period of twelve months and analysed for physical, chemical and biological parameters. Chemical parameters were tested using UV-Vis photometry. Physical parameters were measured using HI9829 waterproof portable logging multi-parameter meter and biological parameters were determined using the Minimal Media ONRG-MUG test and the Membrane Filtration Method (MF). Results shows that total hardness and Fe concentration were above limit in 78% and 56% of the sampled boreholes, respectively. pH, EC, Ca, Cl, Fl, Mn, Mg and Turbidity were within the acceptable WHO limits. Of the sampled boreholes, 67% were not conforming to the Escherichia coli loads recommended for drinking water. Parametric correlations showed strong and significant correlations between chlorides and fluorides (r = 0.68; p < 0.05), Nitrates and Sulphates (r = 0.78; p < 0.05). There is need to treat borehole water to eliminate E. coli and reduce nitrates and total hardness. Furthermore, analysis and monitoring systems to determine temporal variability and health risks, respectively, needs to be put in place. 2021-06-11T10:45:10Z 2021-06-11T10:45:10Z 2016 Article 1751-231X https://iwaponline.com/wpt/article-abstract/11/2/329/20719/An-analysis-of-ground-water-quality-in-a-water?redirectedFrom=fulltext https://doi.org/10.2166/wpt.2016.038 http://hdl.handle.net/11408/4468 en Water Practice and Technology;Vol. 11; No. 2: p. 329-341. open IWA Publishing |
| spellingShingle | Borehole Ground water use UV-Vis spectrophotometry Water scarcity Water quality Mukanga, C. Chitata, T. Mudereri, Bester Tawona An analysis of ground water quality in a water stressed urban centre: a case of Gweru city, Zimbabwe |
| title | An analysis of ground water quality in a water stressed urban centre: a case of Gweru city, Zimbabwe |
| title_full | An analysis of ground water quality in a water stressed urban centre: a case of Gweru city, Zimbabwe |
| title_fullStr | An analysis of ground water quality in a water stressed urban centre: a case of Gweru city, Zimbabwe |
| title_full_unstemmed | An analysis of ground water quality in a water stressed urban centre: a case of Gweru city, Zimbabwe |
| title_short | An analysis of ground water quality in a water stressed urban centre: a case of Gweru city, Zimbabwe |
| title_sort | analysis of ground water quality in a water stressed urban centre: a case of gweru city, zimbabwe |
| topic | Borehole Ground water use UV-Vis spectrophotometry Water scarcity Water quality |
| url | https://iwaponline.com/wpt/article-abstract/11/2/329/20719/An-analysis-of-ground-water-quality-in-a-water?redirectedFrom=fulltext https://doi.org/10.2166/wpt.2016.038 http://hdl.handle.net/11408/4468 |
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