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了解恩施市地方性氟中毒病区高氟来源，为地方性氟中毒病防治提供科学依据。方法：应用氟离子选择电极法分析新塘和红土两病区饮水、空气、煤及食物中氟含量。结果：饮水氟含量平均值为０．１６ｍｇ／Ｌ，低于国家饮用水氟标准；室内空气中氟含量平均值为 ０．０７８ｍｇ／ｍ３，超过国家空气氟标准；煤氟含量平均值为 ５３．９７ｍｇ／ｋｇ；食物氟水平普遍高于以燃柴为主的非氟病区，两病区属燃煤型地方性氟中毒病区。
To understand the sources of high fluoride in endemic fluorosis area in Enshi City, and to provide a scientific basis for the prevention and treatment of endemic fluorosis. Methods: Fluoride ion selective electrode method was used to analyze the fluoride content in drinking water, air, coal and food in Xintang and laterite areas. Results: The average content of fluorine in drinking water was 0.16mg / L, lower than the national drinking water fluoride standard. The average fluorine content in indoor air was 0.078mg / m3, exceeding the national air fluoride standard. The average content of coal fluorine was 53. 97mg / kg; the level of fluoride in food is generally higher than that of non-fluorosis ward with fuelwood, and the two wards belong to the coal-burning endemic fluorosis area.