OCCURRENCE OF FLUORIDE IN GROUNDWATER OF VARIOUS VILLAGES OF DISTRICT AMBALA (HARYANA)JAGMOHAN OBEROI AND K.C. GUPTA
Ten water samples, 5 from handpumps and 5 from tubewells were collected from different villages of Mullana block of Ambala district in Haryana state and analyzed water qualities parameters like pH, sulphate ions, chloride ions, total hardness, nitrite ions, methyl orange alkalinity, fluoride ion, iron, copper and cadmium for 6 months, July to Dec 2008. In hand pump water of different villages, minimum fluoride level of 0.10 mg/L and maximum level of 0.90 mg/ L was found and for tubewell water, minimum fluoride level of .65 mg/L and maximum level of 1.9 mg/L was analysed. In Dulyani village of Ambala district showed minimum fluoride concentration of 1.60 mg/L and maximum of 1.90 mg/L. According to WHO 1995 drinking water standards fluorides are known to be beneficial when present in concentration of 0.5 to 1.5 mg/L. But when it exceeds the limits of 1.5 mg/L it is found to cause fluorosis. High alkalinity favours high concentration of fluoride in ground water, which has resulted in dental and skeletal fluorosis in study area.
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