Social & Preventive Medicine General fd81557b The safe limit of Fluorine in drinking water is – A 0.2–0.5 mg/L B 0.5–0.8 mg/L C 0.8–1.2 mg/L D 1.2–2.0 mg/L High-Yield Explanation The recommended level of fluoride in drinking water in the country is accepted as 0.5 to 0.8 mg/ Liter. -Park Maximum permissible limit is 1.5 mg/Lit.