In phase II of a pilot conducted by ZOA, fluoride levels in this area were reduced from 10.5 mg/l to below the WHO standard of 1.5 mg/l through using the Nilogon filter at both the household and community levels.

Clean water in Yemen thanks to fluoride removal filter
ZOA has successfully introduced the fluoride Nilogon filter at household and community levels in Yemen. Residents from the villages of Khouber, located in Al Hussein district and Habeel Ghadas village, located in Al Azariq district, now understand the importance of fluoride-free drinking water for their health and have access to the tools to purify contaminated water.
Access to clean water
Access to clean water is a major challenge in Yemen, particularly in Al-Dhale’a Governorate. People used to rely on shallow water sources, but these are now insufficient due to declining rainfall. Residents have begun digging groundwater wells in response.
The groundwater often contains harmful substances, especially high fluoride levels, which pose serious public health risks. Understanding the geochemical mechanisms behind fluoride presence is crucial in Al-Dhale’a, as groundwater is the only water source. High fluoride levels particularly affect children who suffer from dental and skeletal fluorosis. The general population also faces increased health risks, exacerbated by limited awareness of fluoride consumption.
