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目的 调查中国南、北方 2个饮砖茶型氟中毒病区居民人群总摄氟量 ,为制订砖茶含氟量卫生标准提供依据。方法 选四川省阿坝县和内蒙古陈巴尔虎旗 ,进行入户膳食调查 ;同时采集砖茶饮料和各种食物样品 ,用电极法测定氟含量。结果 病区饮水、食物氟含量均符合国家标准 ,摄氟量 90 %上以来自砖茶饮料食品。观察点居民总摄氟量成人 8.0 5～ 14.77m g/ d,儿童 2 .2 6～ 3.30 m g/ d,远远高于对照点 ,达 3.0 6～ 5 .80倍。结论 藏族居民和蒙古族居民摄入过量氟的主要途径是大量饮用含氟量极高的砖茶饮料食品
Objective To investigate the total fluorine uptake by inhabitants in two tea-drinking fluorosis areas in southern and northern China, and to provide the basis for formulating health standards for the content of fluorine in brick tea. Method Aba County in Sichuan Province and Chenbaerhu Banner in Inner Mongolia were selected for household food surveys. At the same time, brick tea drinks and various food samples were collected, and the fluorine content was determined by the electrode method. Results ward drinking water, food fluoride content are in line with national standards, fluoride intake of 90% from brick tea drinks food. At the observation point, the total fluorine intake of residents was 8.05 ~ 14.77 m g / d and 2.26 ~ 3.30 m g / d for children, which was much higher than the control point, reaching 3.06 ~ 5.80 times. Conclusions The main ways for residents of Tibet and Mongolian population to consume excessive fluoride are to drink large amounts of brick tea beverage foods with extremely high fluoride content