Microbiological Analysis of Drinking Water of Kathmandu Valley

Authors

  • Tista Prasai Nepal Academy of Science and Technology, Kathmandu, Nepal.
  • Binod Lekhak Central Department of Microbiology, Tribhuvan University, Kathmandu, Nepal.
  • Dev Raj Joshi Central Department of Microbiology, Tribhuvan University, Kathmandu, Nepal.
  • Madhav Prasad Baral National School of Sciences, Kathmandu, Nepal.

DOI:

https://doi.org/10.3126/sw.v5i5.2667

Keywords:

Drinking water, Public health, Coliform, Bacteria

Abstract

Drinking water quality assessment in Kathmandu valley has always been crucial with reference to public health importance. A study was conducted to evaluate the quality of drinking water of the valley. A total of 132 drinking water samples were randomly collected from 49 tube wells, 57 wells, 17 taps and 9 stone spouts in different places of Kathmandu valley. The samples were analyzed for microbiological parameters. Total plate and coliform count revealed that 82.6% and 92.4% of drinking water samples found to cross the WHO guideline value for drinking water. During the study, 238 isolates of enteric bacteria were identified, of which 26.4% were Escherichia coli, 25.6% were Enterobacter spp, 23% were Citrobacter spp, 6.3% were Pseudomonas aeruginosa, 5.4% were Klebsiella spp, 4.0% were Shigella spp, 3.0% were Salmonella typhi, 3.0% were Proteus vulgaris, 3.0% were Serratia spp and 1.0% were Vibrio cholerae .

Key words: Drinking water; Public health; Coliform; Bacteria.

DOI: 10.3126/sw.v5i5.2667

Scientific World, Vol. 5, No. 5, July 2007 112-114

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How to Cite

Prasai, T., Lekhak, B., Joshi, D. R., & Baral, M. P. (2010). Microbiological Analysis of Drinking Water of Kathmandu Valley. Scientific World, 5(5), 112–114. https://doi.org/10.3126/sw.v5i5.2667

Issue

Vol. 5 No. 5 (2007)

Section

Articles