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Ethiopia: Filtering Fluoride Contaminated Water

The problem of natural fluoride contamination in drinking water covers a wide area in the Rift Valley of Ethiopia. More than 8 million people are estimated to be exposed to the risk of developing fluorosis, irreversibly affecting teeth and the skeleton. Efforts made either by the government or other institutions have not been sufficient due to socio-economic problems and a lack of widely applicable low-cost defluoridation technologies. A consortium of HEKS, Eawag and two local organizations successfully set up a defluoridation centre in Ethiopia, where filter material is produced on the basis of bone char. The centre offers water testing services for other organizations, and is currently developing community filters serving 300-500 households each. Read more