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KMID : 0382420030290020038
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Korean Journal of Environmental Health Society
2003 Volume.29 No. 2 p.38 ~ p.44
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A Survey on the Contents of Fluoride, Calcium, and Magnesium of Reservoir Water on a Stream in the Jeon-buk Area of Korea
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Lee In-Kyu
Kim Jong-Gyu
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Abstract
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This study was performed to investigate the levels of fluoride (F). calcium (Ca). and magnesium (Mg) in water samples taken from five reservoirs or direct sources on a stream used for agricultural or domestic water in the Iksan and Wanjoo areas, Jeon-buk. Korea. and to find a possible link between Ca or Mg and fluoride in water sources in theses areas. The samples were collected by the recommendation methods of the World Health Organization and analyzed by the recommendations of the Japanese Standard Methods. Statistical analyses were performed by the analysis of variance and correlation analysis. The F levels in water samples were 0.80-2.53 ppm. In four sampling sites the water fluoride levels exceeded I ppm. which is the recommended level for fluorosis/caries control. The Ca levels in water samples were 6.82-12.98 ppm. and the Mg levels were 0.30-1.\17 ppm. which are lower compared with the natural levels of water sources previously reported by other investigators. This study showed a positive correlation between Ca and Mg (r= 0.877\1. p<0.01) and a negative correlation between F and Ca (r=-D.6974. p
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