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Main Article Content
Bacteriological quality of public water sources in Shuni, Tambuwal and Sokoto towns in North-Western Nigeria
Abstract
The bacteriological quality of various drinking waters in Sokoto, Shuni and Tambuwal towns in Sokoto State was investigated. Tap, well, borehole and sachet water samples were collected and analysed for bacterial counts, coliform count and presence of some water-borne bacterial pathogens using standard microbiological techniques. A total of 280 drinking water samples obtained from 7 taps, 3 boreholes, 15 wells and 10 sachet water sale points on weekly basis for 8 weeks in the study area were analysed. Bacterial counts ranged between 1.0x104 cfu/ml and 1.0x107cfu/ml while coliform counts ranged from 1.0x103cfu/ml - 1.0x106cfu/ml. Raw water from Sokoto Water Board had highest coliform count while treated water at the treatment plant had the least count. A total of 131 water-borne bacterial pathogens including faecal coliforms comprising 45 numbers of E. coli, 30 Salmonella spp, 32 Shigella spp and 24 Vibrio cholerae were isolated. Generally, all the sampled waters in this study not only contained high levels of bacteria and coliforms, they also contained pathogens and therefore, unsuitable for drinking.
Keywords: Bacteria, Coliforms, Pathogens, Shuni, Tambuwal, Sokoto, Water Sources.
