Paper Details

In order to assess the fluoride contamination in the groundwater of Upper Banas River Basin, the study was conducted in the months June 2019, November 2019, June 2020 and November 2020. The fluoride concentration along with pH, EC and TDS in the groundwater samples was determined for samples collected from various open wells of Basin. It is observed that the pH of groundwater in all three seasons was ranging between 6.74 to 8.59. About 50.47 per cent area of Upper Banas River basin has pH ranges between 7.50 to 8.00 in pre monsoon period and 85.86 per cent area during post monsoon period. The EC of the groundwater of the basin ranges between 0.51to 6.64 ds/m during all thee seasons. about 68.63 per cent of the study area during pre-monsoon and about 81.07 per cent area during post monsoon show the EC less than 2.25 dS/m which is suitable for drinking purpose The TDS of the groundwater of the basin varies fron 265 to 4160 meq/l during three seasons. the 72.72 per cent area in pre monsoon and 83.43 per cent area in post monsoon shows concentration of total dissolved solids within its maximum permissible limit (<1500 meq/l). The fluoride concentration in groundwater varies from 0.33 ppm to 8.30 ppm during pre-monsoon seasons and 0.16 mg/L to 7.30 mg/L during post monsoon season. In Upper Banas River basin 54.35 per cent area during pre-monsoon period and 68.86 per cent area in post monsoon period showing permissible limit of F (< 1.50 mg/L) for drinking purpose.

Fluoride, Groundwater, Uppar Banas Basin, Drinking Water, River Basin