Mitigation measures to arsenic contaminated water provided to the patients in four Tarai districts, viz. Nawalparasi, Parsa, Bara and Rautahat of Nepal were (i) Household Level Arsenic Removal Filter, (ii) innovated dug well (iii) arsenic iron removal plant (AIRP), and (iv) tube well. Assessment of the effects of arsenic mitigation measures on health of the arsenicosis patients was made by using the pre-test and post-test designs. Analyses have been concentrated on the information of the patients obtained through questionnaire survey, clinical examination and water and hair samples of the patients.
The findings of the study were: 173 out of 354 patients (48.9%) have shown improving condition of arsenicosis. As the groundwater is the main source of drinking water in the study districts, it is potentially at risk of arsenic contamination. The problem will further intensify in future if effective control measures are not undertaken. Therefore, more effective methods need to be adopted to provide opportunities to the patients to use different options for mitigation of the arsenicosis problem.

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