食物含氟量过高是造成我省地方性氟中毒广泛严重流行的主要原因。近年来的研究结果证实,病区粮食中含氟量过高是主要来源于病区居民室内敞灶燃煤所至。根据我省病区居民住房条件较差,而煤矿资源丰富,小煤窑多,粮食,辣椒等收获后还需久置于炕架上烘炕并存放的特点,我们设想通过改灶以消除室内烟尘污染来减轻或控制氟病的流行。1984年,我们因地制宜地设计了以砖土结构为主,加有火盖,装有烟囱及散热管(用供烘炕食物及取暖用)的防氟炉灶。并在贵阳市郊病情较重的久安乡拐耳村进行改灶防氟的试点工作。在点上全面改灶之前,我们选择了两户进行了预试观察,并以延用旧式敞灶和住房条件,烧煤量相近的四户为对照观察。 High fluoride content of food is caused by endemic fluorosis in our province is the main reason for the widespread serious. In recent years, the results of the study confirm that the high fluoride content in the ward food is mainly derived from the open-range coal burning in the ward inhabitants. According to the poor living conditions of residents in our province residents, and rich in coal mines, small coal mines, food, peppers and other harvest after a long time still need to be placed in the kang rack drying and storage characteristics, we envisaged through the stove to eliminate indoor smoke and dust Contamination to reduce or control the prevalence of fluoride disease. In 1984, we designed a fluorinated stove mainly made of brick and clay with a fire cap, a chimney and a heat pipe (used for baking kang food and heating) according to the local conditions. And in the suburbs of Guiyang heavier rural security Guai ear village to carry out the pilot fluoride stove work. In the point of a comprehensive renovation before the stove, we have chosen two pre-test observation, and to extend the use of old open stove and housing conditions, the amount of coal in a similar four households as a control.