• Dr.CHATLA SUNEETHA
• Dr.P.BRAHMAJI RAO

The survey was conducted in Kaligiri mandal, Nellore district are highlighted in Fluoride contamination. The Groundwater is the primary source of drinking water in this area and very few people are fed with water supply scheme. They have fluoride bearing minerals which are leached out to the groundwater and contribute high fluoride concentration in the groundwater. Total fifteen water samples are collected from different locations. This study used in SPADNS method. Fluoride levels in 93% of samples exceed the maximum permissible limits (1.5 mg/L). The observed Fluoride levels in this area range from 1.84–3.1 mg/L with an average of 2.2 mg/L. The high fluoride levels may lead to morbidity of dental fluorosis .It is finally concluded that the Kaligiri mandal need a sound Fluoride management plan and the removal of fluoride from drinking water is advisable.

Keywords: Contamination; Fluoride; Groundwater; SPADNS method.

"FLUORIDE CONCENTRATION IN GROUND WATER IN KALIGIRI MANDAL,SPSR NELLORE DISTRICT", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 4, page no.91-95, April-2019, Available :http://www.jetir.org/papers/JETIR1904J09.pdf

"FLUORIDE CONCENTRATION IN GROUND WATER IN KALIGIRI MANDAL,SPSR NELLORE DISTRICT", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 4, page no. pp91-95, April-2019, Available at : http://www.jetir.org/papers/JETIR1904J09.pdf