Virological and bacteriological quality of drinking water in Ethiopia

Autor: Tesfaye Legesse Bedada, Walelign Dessie Mezemir, Firehiwot Abera Dera, Waktole Gobena Sima, Samson Girma Gebre, Redwan Muzeyin Edicho, Almaz Gonfa Biegna, Dejenie Shiferaw Teklu, Kassu Desta Tullu
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: Applied Water Science, Vol 8, Iss 2, Pp 1-6 (2018)
Druh dokumentu: article
ISSN: 2190-5487
2190-5495
DOI: 10.1007/s13201-018-0716-8
Popis: Abstract Since unsafe water is responsible for many illness, deaths, and economic failure, water quality monitoring is essential. A cross-sectional study was conducted on 218 drinking waters samples collected between February and June 2016 to assess water quality using phages by the help of CB390 E. coli host, plaque assay; multiple tube fermentation for coliforms and pour plate for heterotrophic bacteria at Ethiopian Public Health Institute. Heterotrophic plate count greater than 100 cfu/ml was noted in 41 samples and detections of total and thermotolerant coliforms and E. coli in 38, 24, and 10 samples, respectively, and no phages detection in chlorinated waters. While heterotrophic plate count greater than 100 cfu/ml was observed in 100 samples and detections of total and thermotolerant coliforms, E. coli, and phages in 75, 60, 42, and 5 samples, respectively, for untreated waters. The majority of the waters contained indicators above standard limits. This indicates that the sources are contaminated and they are potential threats for health. Hence, regular water monitoring should be a priority agenda.
Databáze: Directory of Open Access Journals
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