Abstract
Dental fluorosis occurs because of fluoride over-absorption during tooth calcification and maturation. We studied fluoride concentration in water and soil samples of the Koohbanan region in Kerman province of southeastern Iran and the effects of calcium chloride and gypsum treatments in decreasing the amount of fluoride in water samples of this region. The results indicate that the high amount of fluoride in the water samples of Koohbanan region is not in agreement with the recommended amount of fluoride concentration for drinking water by World Health Organization (that is 1–1/5 mg/l). Applying calcium chloride and gypsum treatments decreased the amount of fluoride in the water samples showing that utilizing calcium chloride (6 mg/l) or gypsum (12 mg/l) can lower the fluoride concentration in the water samples of Koohbanan, and thus solve the observed dental fluorosis problem.
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The authors wish to thank the Mahan International Center of Science and High Technology and Environmental Sciences for Excellence for financial and technical support of this project.
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Fekri, M., Kasmaei, L.S. Fluoride pollution in soils and waters of Koohbanan region, southeastern Iran. Arab J Geosci 6, 157–161 (2013). https://doi.org/10.1007/s12517-011-0336-1
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DOI: https://doi.org/10.1007/s12517-011-0336-1