The safe limit of Fluorine in drinking water is ?
0.2-0.5 mg/L
0.5-0.8 mg/L
0.8-1.2 mg/L
1.2-2.0 mg/L
Ans. is 'b' i.e., 0.5 - 0.8 mg/L o The recommended level of fluoride in drinking water in the country is accepted as 0.5 to 0.8 mg/ Liter, -Park o Maximum permissible limit is 1.5 mg/Lit.