Applied Microbiology: Open Access
Open Access
ISSN: 2471-9315
+44 1300 500008
ISSN: 2471-9315
+44 1300 500008
Nepal C Dey, Mahmood Parvez, Digbijoy Dey, Ratnajit Saha, Lucky Ghose, Milan K Barua and Akramul Islam
BRAC, Bangladesh
Posters & Accepted Abstracts: Appli Micro Open Access
Improving water quality by reducing pollution has been identified as an important target of Sustainable Development Goals (SDGs). This study area covered four hydrological regions of Bangladesh, aimed at determining the risk of selected shallow tube wells (STW; depth <30 m) used for drinking purpose. About 62% of sampled TWs were at medium to high risk according to WHOs� sanitary inspection guidelines, while the situation was worst in south-west region. Microbiological contamination was significantly higher in sampled category-1 STWs (�10 m from latrine) compared to category-2 TWs (>10 m from latrine), while the number of contaminated TWs and level of contamination was higher during wet season. Analysis revealed that over 96% of household did not treat water before drinking. Over 20%, 54%, and 58% of water samples collected from category-1 TWs were contaminated by E. coli, FC, and TC, respectively during the wet season. The number of category-1 TWs having E. coli was highest in the north-west (n=8) and north-central (n=4) region during wet season and dry season respectively, while the level of E. coli contamination in TWs water was significantly higher in north-central region. However, the south-west region had the highest number of FC contaminated category-1 TWs and significantly a higher level of TC and FC in sampled Category-1 TWs than north-west, north-central and south-east region, mainly during wet season. Position of latrine and other pollution sources within 10m of TWs, and platform absent/broken were significantly associated with presence of microbial contaminants in STW water (p<0.01). Water should be treated before drinking.
Email: nepal_dey@yahoo.com