Bacteriological examination of households drinking water in some local Government areas of Kano state, Nigeria

Abstract

D. W. Taura and A. Hassan

Over large parts of the world, humans have inadequate access to portable water and use sources contaminated with disease vectors, and pathogens. Such water is not portable and drinking or using such water in food preparation leads to wide - spread of acute and chronic illnesses and serve major cause of death in many countries. The aim of this study was to evaluate the bacteriological quality of household drinking water in some part of Kano, Nigeria. Bacterial species were isolated by using membrane filtration method with subsequent cultivation on differential and selective media. Of the 212 samples analyzed, 135(17.92%) were from households, 38(17.92%) from wells, 36(16.98%) from taps and 3(1.40%) from boreholes. Two hundred and thirty two (232) isolates of enterobacteriaceae, 31 ofStaphylococci, and 25 of fecal Streptococci, were obtained and identified. The most important organisms detected in terms of frequency were E. coli (15.6%), Proteus vulgaris (11.5%), andKlebsiella pneumoniae (10.8%). The mean value colony forming units (CFU) were 16.78, 26.05, 95.47 and 43.03cfu/100ml for Kumbotso, Gwale, Dala and Ungogo respectively.

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