Environmental Geology

, Volume 21, Issue 1, pp 84–89

Fluorine distribution in waters of Nalgonda District, Andhra Pradesh, India


  • N. V. Ramamohana Rao
    • Institute of Preventive Medicine
  • N. Rao
    • Department of ChemistryOsmania University
  • K. Surya Prakash Rao
    • Department of Applied GeochemistryOsmania University
  • R. D. Schuiling
    • Department of GeochemistryUtrecht University

DOI: 10.1007/BF00775055

Cite this article as:
Ramamohana Rao, N.V., Rao, N., Surya Prakash Rao, K. et al. Geo (1993) 21: 84. doi:10.1007/BF00775055


Geochemical and hydrochemical studies were conducted in Nalgonda District (A.P.), to explore the causes of high fluorine in waters, causing a widespread incidence of fluorosis in the local population. Samples of granitic rocks, soils, stream sediments, and waters were analyzed for F and other salient chemical parameters. Samples from the area of Hyderabad city were analyzed for comparison. The F content of waters in areas with endemic fluorosis ranges from 0.4 to 20 mg/l. The low calcium content of rocks and soils, and the presence of high levels of sodium bicarbonate in soils and waters are important factors favoring high levels of F in waters.

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© Springer-Verlag 1993