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International Journal of Research in Chemistry and Environment
Fluoride is a normal constituent of natural water samples. Its concentration varies significantly depending on the water sources both in urban and rural areas. Although both geological and man-made sources contribute to the occurrence of fluoride in water, the major contribution comes from geological resources. Except in isolated cases, surface waters seldom have fluoride exceeding 0.3 mg/l. The increase in water demand in addition to water shortage has led to growing interest in wastewaterfatcat:uednpkcnkvgo7o4ic53gys4eya