Mondal, D, Ganguli, B, Sen Roy, S, Halder, B, Banerjee, N, Banerjee, M, Samanta, M, Giri, A and Polya, D 2014, 'Diarrhoeal health risks attributable to water-borne-pathogens in arsenic-mitigated drinking water in West Bengal are largely independent of the microbiological quality of the supplied water' , Water, 6 (5) , pp. 1100-1117.
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Abstract: There is a growing discussion about the possibility of arsenic mitigation measures in Bengal and similar areas leading to undesirable substitution of water-borne-pathogen attributable risks pathogens for risks attributable to arsenic, in part because of uncertainties in relative pathogen concentrations in supplied and end-use water. We try to resolve this discussion, by assessing the relative contributions of water supply and end-user practices to water-borne-pathogen-attributable risks for arsenic mitigation options in a groundwater arsenic impacted area of West Bengal. Paired supplied arsenic-mitigated water and end-use drinking water samples from 102 households were collected and analyzed for arsenic and thermally tolerant coliforms [TTC], used as a proxy for microbiological water quality, We then estimated the DALYs related to key sequelae, diarrheal diseases and cancers, arising from water-borne pathogens and arsenic respectively. We found [TTC] in end-use drinking water to depend only weakly on [TTC] in source-water. End-user practices far outweighed the microbiological quality of supplied water in determining diarrheal disease burden. [TTC] in source water was calculated to contribute <1% of total diarrheal disease burden. No substantial demonstrable pathogen-for-arsenic risk substitution attributable to specific arsenic mitigation of supplied waters was observed, illustrating the benefits of arsenic mitigation measures in the area studied.
|Themes:||Health and Wellbeing|
|Schools:||Schools > School of Environment and Life Sciences > Ecosystems and Environment Research Centre|
|Journal or Publication Title:||Water|
|Funders:||British Council United Kingdom Education and Research Initaitive (UKIERI)|
|Depositing User:||Dr Debapriya Mondal|
|Date Deposited:||22 Jan 2015 16:20|
|Last Modified:||22 Jan 2015 16:20|
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