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为及时、准确地了解湖北省饮水型氛中毒病区改水降氟效果，于1993～1995年连续三年对丹江口、枣阳、通城和罗田等四县市已改水的四个氟病区监测点进行了改水工程的落实和降氟效果的监测．结果表明：四县市管理措施落实较好的改水工程占整个改水工程的80％以上，8～12岁儿童氟斑牙、尿氟和水氟逐年下降或维持在正常水平，防治效果显著（P＜0．05）．因此饮用低氟水，改水降氟是预防饮水型氟中毒的根本措施，而改水后保证水氟含量的稳定，加强供水管理和设备维修等则是保证防治措施有效的关键。
In order to accurately and timely understand the effect of water and fluoride removal in the drinking water poisoning area of Hubei Province, three fluorine compounds that have been changed into water in three counties and cities such as Danjiangkou, Zaoyang, Tongcheng and Luotuo from 1993 to 1995 were collected. Ward monitoring points for the implementation of water projects and fluoride monitoring effect. The results showed that the water improvement project with better management measures in four counties and municipalities accounted for more than 80% of the total water diversion project, and the dental fluorosis, urinary fluoride and water fluoride of children aged 8 to 12 decreased or remained at normal levels year by year with significant prevention and treatment effects (P <0.05). Therefore, low-fluoride drinking water, water fluoride is to prevent fluoride-based drinking water to prevent the fundamental measures, and after the water to ensure the stability of the fluorine content of water to strengthen water supply and equipment maintenance is to ensure that the effective prevention and control measures the key.