陕西省横跨温带,暖温带及北亚热带,地方性氟中毒类型较多,病情也较重。本课题的目的是以陕西省各类型病区为对象,通过调查研究,探索氟在自然界的分布规律及其与地方性氟中毒流行的关系,为予测予报及拟制合理的防治措施提供依据。 Shaanxi Province runs across temperate zone, warm temperate zone and northern subtropical zone with more endemic fluorosis types and heavier conditions. The purpose of this project is to take various types of ward in Shaanxi Province as an object, through the investigation and study to explore the distribution of fluorine in nature and its relationship with the prevalence of endemic fluorosis, in order to predict the reported and proposed reasonable control measures in accordance with.