Presence of Coliform and Fecal Coliform and Evaluation of the Drinking Water Quality in Chittagong University Campus

摘要

Water contaminated with harmful pathogen and due to the lack of access to safe drinking water can cause various health defects like infection, water born disease and undesirable appearance of water. This study is focused to determine the microbial quality of drinking water in Chittagong University campus which is one of the mostly populated University in Bangladesh. To determine the microbial quality of drinking water, water was collected from three highly populated place of the campus and the sampling sites were canteen of Biological Science Faculty, Deshnetri Begum Khaleda Zia Hall and Canteen near Shahid Minar. For collecting water samples three random place were selected from those collection sites and water samples were collected using standard procedure for three consecutive days. The temperature and pH was measured at the sampling site; for checking bacteriological parameters (total coliform and fecal coliform) were tested for each sample and their potential for health hazard were measured. Average viable bacterial count in the samples were 13.19×10~6, 9.32×10~6 and 9.7×10~6 respectively in sample 1, sample 2 and sample 3. The results of the study demonstrated that physicochemical and bacteriological quality of water at sources was not up to the mark. But water from canteen near Shahid Minar (Sample 3) has a very high risk of infection as the number of coliform is 1100 and fecal coliform ≌93 and Salmonella was present in that place, demonstrated that water from this site is not safe for drinking. Also Salmonella was found in drinking water sample of canteen of Biological Science Faculty (Sample 1). Possible cause of water contamination may be the irrational practice of drawing water from pipe by suction, improper layout of water supply lines and sewer there might be crossing between them and poor hygienic practice and illiteracy of workers of canteen people. It is recommended that to carryout regular monitoring, crosscheck of the water supply lines.