Survey of Fluoride Concentration in Drinking Water in Rural Areas of Rafsanjan from April to Septamer 2015: A Short Report

Fluoride concentration of 0.5 to 1.5 mg/l in drinking water has a positive effect on prevention or reduction of teeth decay. Today¡ fluoride needed to prevent teeth decay is primarily provided from drinking water. The aim of this study was to survey the amount of fluoride in drinking water in rural areas of Rafsanjan and its comparison with National and World Health Organization standards.
This cross-sectional study was conducted in 2015 in rural areas of Rafsanjan. The samples were collected from 8 resources in the rural areas of Rafsanjan in the spring and summer through using census method (Each season had 8 samples of one liter volume). Samples were kept in polyethylene plastic containers. SPADNS (Sodium2- (Parasulfophenylazo) _ Dihydroxy_3¡ 6_Naphtalene Disulfonate) reagent was used to determine the amount of fluoride in water. Data was analyzed using descriptive statistics (mean ± standard deviation) and paired sample t_test and the significant level was considered as P