“…A systematic quantitative appraisal of the intake in rural populations has not been made in many underdeveloped and developing nations. In the last two decades reports on the occurrence of excess fluoride in water resources in several states of India have been published by many research workers (Chari et al, 1971;Handa, 1975;Raju et al, 1979;Sarma & Swamy, 1983;Handa, 1988;Nawlakhe & Bulusu, 1989;Gaumat et al, 1992;Rajagopalan et al, 1989). For example, at least 2.5 million people living in 8700 villages in India suffer the problem of excess fluoride intake (Nawlakhe & Bulusu, 1989).…”