ASSESSMENT OF FLUORIDE CONTENT, pH AND TDS IN POTABLE WATER OF ALWAR CITY: AN ENVIRONMENTAL CONCERN

Authors: Rajdeep Yadav1 , R.N.Yadav*1 , M.P.S. Chandrawat2 and Sanjay K. Sharma3

1Centre for applied Research, Deptt. of Chemistry,R.R (P.G) College, Alwar (India);2 IET Biotech Institute, MIA, Alwar (India);3Computational and Green Chemistry Research Laboratory,Institute of Engineering & Technology, MIA, Alwar (India);*E-mail: yadav_rama62@yahoo.com.in

Fluorosis is a disease, caused by excess intake of fluoride (>1.5ppm). Today, it is not only a clinical problem but a social problem too. Elemental fluorine exists as a diatomic molecule (consisting of two atoms in a molecule) with remarkably low dissociation energy (38kcal/mole); as a result, it is reactive and has a strong affinity for combining with other elements forming compounds called as fluorides. Fluorosis occurs not only in India but also in about 20 other countries, all of them facing the problem of excess fluoride in drinking water. Fluoride entering the body through water is almost completely absorbed where as fluoride ingested through food is absorbed to a much lesser extent. In present paper, the authors were randomly collected forty samples of potable water from different sources of four zones of Alwar city and analyzed for fluoride content, pH and Total Dissolved Solid (TDS). It was found that 95% water samples have less fluoride content than permissible limits (1.5ppm) but 80% samples have more TDS than permissible limits.

Keywords : Potable water, Fluoride, Total Dissolved Solid.