陕西省岚皋县燃煤污染型氟中毒病区改炉灶效果分析

Analysis of Stove Improvement Effect in Endemic Area of Coal Burn Induced Fluorosis in Langao County of Shaanxi Province

目的了解燃煤污染型氟中毒病区改良炉灶的效果，为该防制措施提供有效依据。方法在改炉灶前、后分轻、中、重病区调查7～10岁儿童氟斑牙患病率、尿氟、居室空气氟含量并进行比较。结果改炉灶后比改炉灶前居室空气氟下降了136倍，尿氟下降了5．9倍，氟斑牙患病率由61．0％下降到21．9％。结论燃煤污染型氟中毒病区改良炉灶效果是显著的，但仍需加强改良炉灶的质量和健康教育。

Objective To know the effect of stove improvement effect in endemic area of coal bum induced fluorosis to provide effective basis for the control measure. Methods Incidence of dental fluorosis of children aged from 7 to 10 years, urinary fluoride and fluoride content in indoor air were investigated and com- pared in mild, moderate and severe endemic areas before and after stove improved. Results After stove improvement, fluoride in indoor air and urinary fluoride decreased 136 times and 5.9 times, respectively, compared with those before stove improvement while incidence of dental fluorosis reduced from 61.0% to 21.9%. Conclusions The effect of stove improvement in the endemic area is distinguished, and the quality of improved stove and health education should be strengthened.