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[目的]了解目前郑州市地方性氟中毒流行与分布;了解降氟改水工程的进展、运行和报废情况。[方法]氟离子电极法测定水氟,氟斑牙检查按Dean法分度。[结果]通过本次地方性氟中毒病情普查,可以确认目前仍有258个地方性氟中毒饮水型病区自然村;自1982～2004年底共建降氟改水工程464处,受益自然村达671个,受益人口311 118人,正常运转的工程434处(93.5%),报废工程30处(6.5%)。[结论]通过调查澄清了目前地方性氟中毒流行与分布;澄清了2004年以前已建降氟改水工程运行和报废情况,为地氟病长期防制规划的制订提供科学依据。
[Objective] To understand the prevalence and distribution of endemic fluorosis in Zhengzhou City and to understand the progress, operation and retirement of fluoride-lowering water diversion project. [Method] Fluoride ion electrode method was used to measure water fluoride and dental fluorosis according to Dean method. [Results] Through this endemic fluorosis survey, we can confirm that there are still 258 endemic fluorosis drinking water ward natural villages; from 1982 to the end of 2004 to build 464 fluoride reduction and water diversion project to benefit the natural village of 671 311,118 beneficiaries, 434 (93.5%) of the normal operation and 30 (6.5%) of the scrapped projects. [Conclusion] The current epidemic and distribution of endemic fluorosis were clarified through investigation. The operation and obsolescence of the fluoride-lowering and water-reform project that has been constructed before 2004 were clarified to provide a scientific basis for the formulation of long-term prevention and control program for endemic fluorosis.