Department of Earth Sciences, College of Sciences, Shiraz University, 71454, Shiraz, Iran.
Environ Geochem Health. 2012 Oct;34(5):641-50. doi: 10.1007/s10653-012-9451-5. Epub 2012 Mar 20.
The present study is the first attempt to put forward possible source(s) of fluoride in the Dashtestan area, Bushehr Province, southern Iran. In response to reports on the high incidence of dental fluorosis, 35 surface and groundwater samples were collected and analysed for fluoride. The results indicate that dissolved fluoride in the study area is above the maximum permissible limit recommended by the World Health Organization (WHO). An additional 35 soil and rock samples were also collected and analysed for fluoride, and rock samples were subjected to petrographic investigations and X-ray diffraction. The results of these analyses show that the most likely source for fluoride in the groundwater is from clay minerals (chlorite) and micas (muscovite, sericite, and biotite) in the soils and rocks in the area. We also note that due to the high average temperatures all year round and excessive water consumption in the area, the optimum fluoride dose level should be lower than that recommended by the WHO.
本研究首次尝试提出伊朗南部布什尔省 Dashtestan 地区氟化物的可能来源。针对有关氟中毒高发的报告，采集并分析了 35 个地表水和地下水样本。结果表明，研究区域的溶解氟化物超过了世界卫生组织（WHO）建议的最大允许限值。还采集并分析了 35 个土壤和岩石样本，对岩石样本进行了岩相研究和 X 射线衍射分析。这些分析的结果表明，地下水氟化物的最可能来源是该地区土壤和岩石中的粘土矿物（绿泥石）和云母（白云母、绢云母和黑云母）。我们还注意到，由于该地区全年平均气温高和用水量过大，最佳氟化物剂量水平应低于 WHO 建议的水平。
