Fluorine distribution in waters of Nalgonda District, Andhra Pradesh, India
| Autor: | K. Surya Prakash Rao, Naveen G. Rao, N. V. Ramamohana Rao, R. D. Schuiling |
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| Rok vydání: | 1993 |
| Předmět: |
Hydrology
Granitic rock General Engineering Low calcium Igneous rock Endemic fluorosis Environmental chemistry Soil water Earth and Planetary Sciences (miscellaneous) General Earth and Planetary Sciences Environmental Chemistry Local population Surface water Groundwater Geology General Environmental Science Water Science and Technology |
| Zdroj: | Environmental Geology. 21:84-89 |
| ISSN: | 1432-0495 0177-5146 |
| DOI: | 10.1007/bf00775055 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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