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目的了解永春县饮水型氟中毒病区改水降氟的防治效果和改水工程运转情况,为防治效果评价提供依据。方法按《福建省地方性氟中毒监测方案》,监测分析全县4个地方性氟中毒病区村的水氟、尿氟和氟斑牙的发病情况。结果儿童氟斑牙患病率从改水前52.5%降到改水后14.8%,氟斑牙指数0.26;病区村水氟从改水前1.2~6.8mg/L降到改水后0.08~0.14mg/L,均值为0.10mg/L,合格率100.0%;尿氟含量0.25~2.47mg/L,几何均值0.98,尿氟合格率92.0%。结论改水降氟措施取得明显效果,饮水型地氟病控制达标。
Objective To understand the effect of water and fluoride control in drinking water fluorosis area of Yongchun County and the operation condition of water diversion project so as to provide the basis for the prevention and control effect. Methods According to “Surveillance program of endemic fluorosis in Fujian Province”, the incidence of fluoride, urinary fluoride and dental fluorosis in four endemic fluorosis areas in the county was monitored and analyzed. Results The prevalence of dental fluorosis in children dropped from 52.5% before water change to 14.8% after water change, and the dental fluorosis index was 0.26. The water fluoride in the ward decreased from 1.2-6.8 mg / L before watering to 0.08- 0.14mg / L, mean 0.10mg / L, pass rate 100.0%; urine fluoride content 0.25 ~ 2.47mg / L, geometric mean 0.98, urinary fluoride pass rate 92.0%. Conclusion The measures to reduce water and fluoride have achieved remarkable results. The control of drinking-water-borne fluorosis has reached the standard.