Environment & Occupational Health · NEET PG Preparation Community Medicine (PSM)
According to the Bureau of Indian Standards (BIS) specifications for drinking water (IS 10500: 2012), what is the maximum permissible limit for fluor…
Practice question from Environment & Occupational Health (NEET PG Preparation Community Medicine (PSM)), with the correct answer and a step-by-step solution.
medium · MCQ · Q-DD020C
According to the Bureau of Indian Standards (BIS) specifications for drinking water (IS 10500: 2012), what is the maximum permissible limit for fluoride in drinking water in the absence of an alternative source, beyond which it causes skeletal fluorosis?
- A.0.5 mg/L
- B.1.0 mg/L
- C.1.5 mg/LCorrect answer
- D.3.0 mg/L
Solution
According to IS 10500:2012, the acceptable limit of fluoride is 1.0 mg/L, but in the absence of an alternative source, the maximum permissible limit is 1.5 mg/L. Levels above 1.5 mg/L are associated with dental and skeletal fluorosis.
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