The impact of various land uses on the microbial and physicochemical quality of surface water bodies in developing countries : prioritisation of water resources management areas

dc.contributor.authorVan der Hoven, Christian
dc.contributor.authorUbomba-Jaswa, Eunice
dc.contributor.authorVan der Merwe, Barend
dc.contributor.authorLoubser, M.J. (Michael John)
dc.contributor.authorAbia, Akebe Luther King
dc.date.accessioned2017-11-27T06:08:37Z
dc.date.issued2017-12
dc.description.abstractTo protect water resources, the WHO recommends assessing land use influence on water quality, taking into consideration residential development and waste disposal amongst others. Thus, we investigated the impact of unconstructed plots, an informal settlement, an urban residential area, and an industrial area on the microbiological and physicochemical quality of two main tributaries within the Klein Jukskei catchment, Johannesburg, South Africa, to identify areas where immediate resource management strategies were needed. Water samples collected from the tributaries’ sources and upstream and downstream from each land use type (Winter and Spring) were analysed for E. coli (indicator organism), using the Colilert® 18 system. Physicochemical parameters (Temperature, pH, dissolved oxygen, electrical conductivity, turbidity and total dissolved solids) were measured using multiparameter instruments. The tributaries’ sources had the lowest E. coli counts (Sandspruit – 0.74; North Ridingspruit – 1.18 log10 MPN/100 mL) during the study. After flowing through the various land uses, mean E. coli counts reached 5.98 (Sandspruit) and 4.85 log10 MPN/100 mL (North Ridingspruit). E. coli values and all physicochemical parameters (but for pH) downstream from most of the land uses did not meet the South African drinking water quality guidelines. The informal settlement had the most negative impact on the microbial and physicochemical quality of the water within the tributaries. Thus, providing informal settlements with appropriate sanitation facilities is likely to prevent pollution of the water bodies. Protection of the sources should also be implemented while industrial wastes need to be monitored for conformity with water quality guidelines before discharge.en_ZA
dc.description.departmentGeography, Geoinformatics and Meteorologyen_ZA
dc.description.embargo2018-12-30
dc.description.librarianhj2017en_ZA
dc.description.sponsorshipThe authors personally provided all funding for the current research.en_ZA
dc.description.urihttp://www.elsevier.com/locate/enmmen_ZA
dc.identifier.citationVan der Hoven, C., Ubomba-Jaswa, E, Van der Merwe, B., Loubser, M. & Abia, A.L.K. 2017, 'The impact of various land uses on the microbial and physicochemical quality of surface water bodies in developing countries : prioritisation of water resources management areas', Environmental Nanotechnology, Monitoring and Management, vol. 8, pp. 280-289.en_ZA
dc.identifier.issn2215-1532
dc.identifier.other10.1016/j.enmm.2017.10.006
dc.identifier.urihttp://hdl.handle.net/2263/63343
dc.language.isoenen_ZA
dc.publisherElsevieren_ZA
dc.rights© 2017 Elsevier B.V. All rights reserved. Notice : this is the author’s version of a work that was accepted for publication in Environmental Nanotechnology Monitoring and Management. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. A definitive version was subsequently published in Environmental Nanotechnology Monitoring and Management, vol.8, pp. 280-289, 2017. doi : 10.1016/j.enmm.2017.10.006.en_ZA
dc.subjectLand usesen_ZA
dc.subjectMicrobial qualityen_ZA
dc.subjectEscherichia colien_ZA
dc.subjectWater resource managementen_ZA
dc.subjectWater qualityen_ZA
dc.titleThe impact of various land uses on the microbial and physicochemical quality of surface water bodies in developing countries : prioritisation of water resources management areasen_ZA
dc.typePostprint Articleen_ZA

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