PANKAJ VERMA, SHARAD.C.SRIVASTVA, SHIVSHANKER YADAV, RAJESH KUMAR, MADHU TRIPATHI AND S. K.SHARMA
Abstract
Fluoride is anion F , the reduced form of fluorine. Inorganic fluorine containing compounds are called fluorides. Fluoride, like other halides, is a monovalent ion. Concentration of fluoride in water can be detected by SPADNS method. Samples collected from some areas of Kanpur city, like Jajmau, Juhi and Anwarganj, were analysed for fluoride by this method. Observed value of fluoride from Anwarganj area ranged between 1.0 mg/L to 1.08 mg/L. In some samples of Jajmau area ,fluoride concentration was 0.1mg/L to 0.3 mg/L that can create the problem of dental carries ( i.e tooth decay). Fluoride concentration was observed 0.58 mg/L in some areas of Juhi. Although in most samples of these areas, fluoride concentration was almost in the safe limit but fluoridation may be needed in those areas where fluoride concentration was below the permissible or acceptable limit prescribed by WHO as well as Indian standards (i.e, 1.5mg/L).