Hydrogeochemical analysis of water quality dynamics under anthropic activities on the southern slopes of Mount Kilimanjaro, Tanzania

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dc.contributor.authorSaid, Mateso
dc.contributor.authorKomakech, Hans Charles
dc.contributor.authorMjemah, Ibrahimu Chikira
dc.contributor.authorLufingo, Mesia
dc.contributor.authorMunishi, Linus Kasian
dc.contributor.authorKumar, Sudhir
dc.date.accessioned2023-05-23T09:04:29Z
dc.date.available2023-05-23T09:04:29Z
dc.date.issued2022
dc.descriptionAbstract. Full text available at https://doi.org/10.1007/s42250-022-00419-zen_US
dc.description.abstractWater quality management requires consideration of surface water and groundwater dynamics. This study utilizes hydrogeochemical and isotopic techniques to understand anthropic influences on surface and groundwater resources in the Kikafu–Weruweru–Karanga (KWK) watershed southern slopes of Mount Kilimanjaro. The KWK watershed had two distinct characteristics, i.e., the upper region (above 1000 m.a.m.s.l) with surface water and few groundwater features and the lower part (below 1000 m.a.m.s.l) characterized by most groundwater sources and rivers. Water sampling and analysis were done between July and August 2019; multivariate statistical analysis aided the understanding of analytical findings. The results revealed NaHCO3 enrichment and Mixed CaNaHCO3 water type. The groundwater chemistry is chiefly controlled by aquifer lithology rather than anthropic activities. Stable isotopes show recharge from both regional and local rainfall as traced from the shallow wells. The levels of anthropic pollution indicators such as nitrate, chloride, and sulfate in deep wells are generally low in groundwater than in shallow wells. Anthropic activities such as irrigation, wastewater discharges and severe water abstraction confirmed significant contaminant agents at the dynamic levels. Next to geogenic releases, anthropic pollution as well is affecting groundwater quality in the aquifer. The current findings call for improved monitoring of the groundwater sources to track any changes in quality since there is a potential evolution to an undesirable state for domestic uses.en_US
dc.identifier.citationSaid, M., Komakech, H. C., Mjemah, I. C., Lufingo, M., Munishi, L. K., & Kumar, S. (2022). Hydrogeochemical analysis of water quality dynamics under anthropic activities on the southern slopes of Mount Kilimanjaro, Tanzania. Chemistry Africa, 5(5), 1589-1610.en_US
dc.identifier.otherDOI:https://doi.org/10.1007/s42250-022-00419-z
dc.identifier.urihttp://hdl.handle.net/20.500.12661/3833
dc.language.isoenen_US
dc.publisherSpringer Natureen_US
dc.subjectWateren_US
dc.subjectWater qualityen_US
dc.subjectWater quality dynamicsen_US
dc.subjectKilimanjaroen_US
dc.subjectMount Kilimanjaroen_US
dc.subjectTanzaniaen_US
dc.subjectSurface wateren_US
dc.subjectGroundwateren_US
dc.subjectHydrogeochemicalen_US
dc.subjectKikafuen_US
dc.subjectWeruweruen_US
dc.titleHydrogeochemical analysis of water quality dynamics under anthropic activities on the southern slopes of Mount Kilimanjaro, Tanzaniaen_US
dc.typeArticleen_US
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