Abstrakt

Monitoring the Fluoride Concentration in the Ground Water of Tea Gardens and Brick Industry Areas of Dibrugarh District, Assam, India

Jitumoni Borah

In this study, ground water samples collected from different locations of the Dibrugarh district were measured for fluoride concentration and some other physico-chemical properties. Water samples were collected from tea gardens and brick industry areas of the district in the month of January-February of 2011. Ground water of the study area was found slightly acidic in nature with pH range 5.3-7.3. Ion selective electrode method is employed for measuring the fluoride concentration. Fluoride level is found in the range from 0.0222 to 0.5789 mg/L, which is quite below the maximum permissible level, 1.5 mg/L. No case of fluorosis was found in the study area.