我省三年来共建改水降氟档案卡3527份,受益人口353万人(占病区人口43%)。为了使改水降氟工作得到巩固发展,因此对已经改水降氟的村(单位)行了调查研究,其中打低氟井3254眼,引泉水130处,物理和药物降氟143处。改水井含氟量在0.5—1.0ppm之间为69%,同时还对135眼井的水质进行了分析,1989年各地、市、县对1342眼井进行了水中含氟量的监测。 Over the past three years, our province has built 3527 water and fluoride reduction archives cards, benefiting 3.53 million people (accounting for 43% of the ward’s population). In order to consolidate the development of water and fluoride reduction work, we conducted a survey on the villages (units) that have changed water and fluoride, of which 3254 were drinking low-fluoride wells, 130 were spring water and 143 were fluoride-degraded physically and drugs. The water quality in the wells was 69% at 0.5-1.0ppm. The water quality of 135 wells was also analyzed. In the year of 1989, the monitoring of the fluorine content in 1342 wells was carried out by all localities, cities and counties.