Halpegama, J.U.; Nanayakkara, K.G.N.; Herath, A.C.; Rajapakse, R.M.G.; Weerasooriya, R.
(Faculty of Science, University of Kelaniya, Sri Lanka, 2020)
Due to excess fluoride in drinking water, over millions of people are being affected globally with dental and bone problems. The World Health Organization (WHO) guidelines specify 1.5 mg /L fluoride in drinking water as ...