Fluoride content in drinking water normally safe is
Correct Answer: 0.5 mg/l
Description: The recommended level if fluoride in drinking water in India is accepted as '0.5-0.8 mg/litre' (0.5-0.8 ppm) In temperature countries where water intake is low, the optimum level of fluoride in drinking water is accepted as 1-2 mg/litre 'Fluorine is a double edged sword' : Inadequate intake is associated with 'dental caries' whereas excess intake with 'dental and skeletal fluorosis' Ref: Park 25th edition Pgno : 663
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