Bacteriological Evaluation of Drinking Water Quality from Kabul University Taps

Sayed Arif Ahmadi; Associate Professor Mohammad Zahir Sakha; Manizha Rahimi

doi:10.62810/jnsr.v2i3.45

Authors

Sayed Arif Ahmadi Kabul University, Department of Food Technology & Hygiene, Afghanistan
Associate Professor Mohammad Zahir Sakha Kabul University, Department of Food Technology & Hygiene, Afghanistan
Manizha Rahimi Kabul University, Department of Preclinic, Afghanistan

DOI:

https://doi.org/10.62810/jnsr.v2i3.45

Keywords:

Drinking water, Bacteriological evaluation, E. coli, Coliform bacteria, Kabul University

Abstract

Human health is significantly affected by poor-quality drinking water, and water-borne diseases are of the most significant concern. A wide variety of microorganisms contaminate drinking water. Water consumers face substantial challenges due to these pollutants and harmful bacteria. To evaluate the microbiological quality of drinking water samples from different places to identify and count Escherichia coli and Coliform bacteria, multiple tube fermentation technique tests (most likely 100 ml) were used. Bacteria were identified using their morphological, biochemical, and cultural characteristics. Sixty tap water samples were collected from different locations at Kabul University. Of these, 36 samples (60 %) were positive for E. coli and Coliform bacteria, and 24 (40 %) were negative. Girls’ and boys’ dormitories showed the highest bacterial contamination level among the multiple positive water samples collected from different locations. Thirty-one samples (86.1 %) of the water were contaminated with Coliform, and five (13.8 %) samples revealed contamination with E. coli. Therefore, it is suggested that all drinking water sources should plan and carry out regular bacteriological evaluations, water supply monitoring, regular treatment, and adequate sanitation.

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