自１９８１年至１９９６年，对赤峰市８７处防氟改水工程连续进行水氟、供水及使用管理情况的观察。结果表明，赤峰市的防氟井使用年限较长，平均为１６．５年，最长的达２６年。每处工程都有专兼职人员管理，使用率为７８．１６％，水氟回升率为５．７５％，工程报废率１３．７９％，工程的回升和报废原因是多因素的 From 1981 to 1996, 87 water-fluoride prevention and water-diversion projects in Chifeng City were continuously monitored for fluoride, water supply and use management. The results show that the use of anti-fluoride wells Chifeng longer life expectancy, an average of 16.5 years, the longest up to 26 years. Each project has a part-time staff management, the utilization rate of 78.16%, water fluorine rate of return of 5.75%, the project scrapped rate of 13.79%, the project’s recovery and scrap reasons are multi-factor