Fluoride testing of groundwater need to be done using Ion selective electrode technology (Potentiometric method)
SPADAN’s method and Titrimetric methods are out-dated technologies for testing fluoride.
However, if large number of samples need to be screened in the field, field testing kits are available.
The kits that are reliable and reasonably priced are developed by: Central Pollution Control Board and · Developmental Alternatives, New Delhi.
While reporting fluoride data, the methodology used for testing should be stated.
The maximum fluoride, so far detected in drinking water in India is 48 mg/L in a village Karoli in Rewari District in Haryana State; The second highest is in the National Capital Territory of Delhi with 32.0 mg/L
India has also developed technologies for removal of fluoride from drinking water.