Environmental Geology

Survey:

Fluorine distribution in waters of Nalgonda District, Andhra Pradesh, India
Journal Environmental Geology
Publisher Springer Berlin / Heidelberg
ISSN 0943-0105 (Print) 1432-0495 (Online)
Issue Volume 21, Numbers 1-2 / April, 1993
DOI 10.1007/BF00775055
Pages 84-89
Subject Collection Earth and Environmental Science
SpringerLink Date Monday, December 13, 2004

A Study:
Abstract 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.
http://www.springerlink.com/content/j7074q47g4612829/