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目的 调查贝尔湖牧区居民摄氟量及主要氟源。方法 在新巴尔虎右旗选择两个典型病区,随机抽取10户居民,入户调查饮奶茶情况并采集饮水、砖茶和奶茶样品,用电极法测定氟化物含量。结果 两调查点饮水、砖茶和奶茶氟化物含量均很高;分别为4.12～4.37mg/L,780.3～800.0 mg/L和5.80～5.88 mg/L;两调查点成人经奶茶途径摄氟量分别为（8.70±3.91）mg/d和（9.50±3.22）mg/d,其中从饮水摄氟分别占75.34％和70.07％,从砖茶摄氟分别占24.66％和29.93％。结论 两调查点摄氟量远远超过国家标准,是以饮水型为主的混合型地方性氟中毒病区。
Objective To investigate the fluoride exposure and the main fluorine sources in the pastoral areas of Bel Lake. Methods Two typical wards were selected in Xinbaerhu Right Banner. 10 households were randomly selected to investigate the situation of drinking milk tea and samples of drinking water, brick tea and milk tea were collected. The fluoride content was determined by the electrode method. Results The drinking water, brick tea and milk tea fluoride in the two survey sites were all high, ranging from 4.12 to 4.37 mg / L, 780.3 to 800.0 mg / L and 5.80 to 5.88 mg / L, respectively. (8.70 ± 3.91) mg / d and (9.50 ± 3.22) mg / d, respectively, of which fluorine accounted for 75.34% and 70.07% respectively from drinking water and 24.66% and 29.93% respectively from brick tea. Conclusion The fluoride concentration in two investigation points far exceeds the national standard, which is a mixed endemic fluorosis area mainly based on drinking water.