Cost-effectiveness of options for reducing health risks in areas where food crops are irrigated with treated or untreated wastewater
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Drechsel, Pay; Seidu, R. 2011. Cost-effectiveness of options for reducing health risks in areas where food crops are irrigated with treated or untreated wastewater. Water International, 36(4):535-548. (Special issue on "Wastewater use in agriculture: economics, risks and opportunities" with contributions by IWMI authors). doi: http://dx.doi.org/10.1080/02508060.2011.594549
Permanent link to this item: http://hdl.handle.net/10568/40415
In this article the authors draw from a comparative assessment of different interventions, examining their costs, risk-reduction potential and cost-effectiveness. They consider a case study in Ghana, using an approach that integrates quantitative microbial risk assessment (QMRA), disability-adjusted life years (DALYs) and cost-effectiveness analysis. Most practices appear highly cost-effective, although only a few are likely to avert more than 80% of the DALY burden. As compliance will always be a challenge, the results support the need for a multi-barrier risk-management approach that, where possible, combines treatment and non-treatment interventions.