Abubakar Imran, Tariq Manzoor, Muhammad Ibrahim, Wasif Munaf.
Drinking water; bacteriological quality at source and its distributing supply lines in Lahore.
Professional Med J Jan ;23(03):339-42.

World Health Organization, (WHO) estimates that more than 80% of poor health conditions in developing countries, is related to water and sanitation condition. The supply water and sanitary lines often overlap in our water supply system and water contaminated by fecal contents and become a major cause of GIT infections and outbreaks in human populations. Objective: The Objective of the study was to determine the fecal contamination level in tube well water across the distributing supply lines. Study Design: The study design was observational. Settings: Fatima Memorial Hospital, College of Medicine and Dentistry Shadman Lahore. Period: February 01, 2012 to May 29, 2012. Method: The study did not engage any ethical issues and conducted in five specific regions of Lahore. A 100 ml of water sample was collected in sterile container, from the tube well and after every 100 meter distance till 500 meters. The sample size was 250 from 45 tube wells and their distributing supply lines. It was then observed for fecal coliforms using prescribed scientific methods. Result: The results indicated that bacterial growth at baseline was 42.2%, and at extremity was 73.3%. The A Category water obtained at baseline is 60.0% and at the extreme level it is 26.7%. So by increasing distance from source of water the risk of fecal contamination and low quality of drinking water increases. Conclusion: It is concluded that as the distance increased from the main source of water, the frequency of bacterial growth increases and the quality of water become poor.

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