Contamination of groundwater sources in emerging African towns: the case of Babati town, Tanzania

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dc.contributor.author Pantaleo, P. A.
dc.contributor.author Komakech, Hans C.
dc.contributor.author Mtei, Kelvin M.
dc.contributor.author Njau, Karoli N.
dc.date.accessioned 2019-07-24T10:46:54Z
dc.date.available 2019-07-24T10:46:54Z
dc.date.issued 2018
dc.identifier.uri doi: 10.2166/wpt.2018.104
dc.identifier.uri http://dspace.nm-aist.ac.tz/handle/123456789/370
dc.description Research Article published by Water Practice & Technology Vol 13 No 4 en_US
dc.description.abstract Assessment of groundwater contamination potential was carried out in Babati, Manyara, Tanzania. Diazotization, cadmium reduction, ascorbic acid, ion selective electrode and membrane filtration analytical methods were used, respectively, for nitrite, nitrate, phosphate, fluoride and microbial investigations. Fecal coliforms (FC) and high NO3 concentrations were present in wells less than 30 m deep. The maximum FC level was 280 CFU/100 ml, and the nitrate (NO3) ranged from 1.1 to 357.7 mg-NO3/l. In boreholes, nitrate concentrations ranged from 2.3 to 32.6 mg-NO3/l, below both national and WHO standards, and were all free of fecal coliform. Other parameters were all within recommended limits for all wells tested. Evaluation of the potential contamination pathways revealed that the shallow well depths ranged from 1.2 to 26.67 m – median 9 m (N ¼ 366): 70% were unlined and 19% were uncovered. About 74% of the wells were within 30 m of sanitation facilities, of which 60% were traditional pit latrines. The findings revealed that most shallow wells (64%) are polluted and could cause health problems for users. Therefore, it is prudent that the community avoids relying on shallow wells. Boiling of domestic water before use is highly recommended. en_US
dc.language.iso en_US en_US
dc.publisher Water Practice & Technology en_US
dc.subject emerging towns en_US
dc.subject groundwater sources en_US
dc.subject pollution risk en_US
dc.subject water pollution en_US
dc.title Contamination of groundwater sources in emerging African towns: the case of Babati town, Tanzania en_US
dc.type Article en_US

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