Confirmed case of fluorosis is defined by presence of fluoride in urine more than:
Confirmed case of fluorosis is defined as presence of one or both of the following: High level of fluoride in urine >1mg/L Intraosseous membrane calcification in fore arm confirmed by Xray Ref: Health policies and programmes in India, D.K. Taneja 11th edition page: 329
1 mg/L
3 mg/L
5 mg/L
7 mg/L