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目的了解山西省氟中毒病区水氟分布和改水降氟工程现状,为加快地方性氟中毒防治工作提供科学依据。方法根据国家《地方病防治项目技术方案》,对山西省4个市42个县(市、区)进行调查,水氟检测采用氟离子选择电极法。结果共筛查了945个村的饮水水样,水氟均值≤1.0mg/L的村为527个(占55.77%),水氟均值>1.0mg/L的村有418个(占44.23%)。其中调查村最大平均值为6.18mg/L。调查了495处降氟改水工程,水氟超标工程为285个(占57.58%),水氟最大值为10.52mg/L。结论山西省高氟水源分布范围广,防治形势依然严峻,今后应进一步加大改水工作力度。
Objective To understand the current status of water fluoride distribution and water and fluoride reduction projects in fluorosis area of Shanxi Province and provide a scientific basis for accelerating the prevention and control of endemic fluorosis. Methods According to the National Program of Endemic Disease Control and Prevention, 42 counties (cities and districts) in 4 cities of Shanxi Province were investigated. The fluoride ion selective electrode method was used for the detection of water fluoride. Results A total of 529 villages (55.77%) with water fluoride mean ≤1.0mg / L and 418 villages (44.23%) with water fluoride mean> 1.0mg / L were screened for water samples from 945 villages. . Among them, the largest average of survey villages is 6.18mg / L. A total of 495 fluoride reduction and water diversion projects were investigated. 285 water fluoride exceeded the standard (accounting for 57.58%) and the maximum fluoride content was 10.52 mg / L. Conclusion There is a wide distribution of high-fluorine water sources in Shanxi Province, and the situation of prevention and control is still grim. In the future, efforts should be made to further improve water diversion.