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Title

EVALUATION AND ASSESSMENT OF FLUORIDE IN DRINKING WATER WELLS DAMAVAND VILLAGES ZONING IN GIS ACCORDING TO DMF INDEX

Pages

 Start Page 287 | End Page 297

Abstract

 Background: FLUORIDE is one the vital anions and the DRINKING WATER is the main source of preparing it for the human body. Nonetheless, the aim of this paper is to investigate the FLUORIDE rate in water supplying WELLs by using GIS environment according to decay, missing or filled (DMF) index. Methods: This research is an analytic and cross-sectional descriptive study with sampling approach of 12 water supplying WELLs of DAMAVAND villages in summer and autumn the year 2013. The FLUORIDE concentration was measured by standard method SPADNS using MN-Nano color 400 Photometer in laboratory of Rural Water and Wastewater Company of Tehran. Then DMF was investigated for local students and finally the obtained data were modeled in GIS.Results: The average of FLUORIDE concentration was 0.094 to 0.212 mg/L in summer and 0.137 to 3.48 mg/L in autumn. The DMF index was estimated around 5.46 for all evaluated students that the mentioned index was 7.635 and 3.29 for male and female pupils respectively which are statistically significant difference.Conclusion: The amounts of fluorine in DRINKING WATER supplies in rural DAMAVAND villages are lower than the international water standards. According to the results of experiments and lack of fluorine ion in the villages of this town, required fluorine should be done by drinkable water FLUORIDATION and continuities of implementation plan for FLUORIDE ion among the schools until reaching the FLUORIDE concentration to the standard threshold, Supplying required fluorine of body by mouth-wash materials for people of this region.

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