Fluoride in Drinking Water -Its Effects and Removal

Abstract

Occurrence of fluoride in water, its metabol~sm, excretion. effect o ingestion in human and cattle systcm .,nd methods of fluoridation and defluorida- tion have been discussed. The presence of fluoride rn waters occurring in India, with special reference to Raj~sthan desert has been reviewed. Based on the survey and physico-chemical analyses of about 2,700 water samples of Rajasthan, distribution of fluoride in this area has been d~scussed wrth reference to drinking water standards. A water resources map showing concentrations of fluoride in four arid districts of Rajasthan is also presented.