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目的 及时、准确、系统地了解与掌握地方性氟中毒的病情及动态 ;了解防治措施落实的进度及防治效果 ,为制定科学的防制策略提供依据。方法 采用流行病学调查方法 ,儿童氟斑牙采用 Dean氏法检查 ,饮水氟含量、儿童尿氟含量均采用氟离子选择电极法进行检测。结果 饮水型氟中毒病区 17个监测县中 ,改水平均完成率为 :1996年 5 0 .92 % ;1997年 5 0 .2 7% ;儿童尿氟含量平均值为 :1996年 2 .0 0 mg/ L ,1997年 1.97% ;儿童氟斑牙患病率 1996年 47.6 0 % ,1997年为 47.74%。结论 目前全国地氟病监测点完成改水任务平均只有 5 0 %左右 ,而且各点也不平衡 ,有的县改水工作处于停滞状态 ,有的工程质量出现多种问题 ,使水氟含量回升、超标。因此 ,各省氟病区改水降氟的防病措施必须加强
Objectives To understand and master the condition and dynamics of endemic fluorosis in a timely, accurate and systematic manner; understand the progress of implementation of prevention and control measures and the prevention and treatment results, and provide the basis for formulating scientific prevention and control strategies. Methods Epidemiological survey method, children’s dental fluorosis by Dean’s test, fluoride content in drinking water, urinary fluoride content were detected by fluoride ion selective electrode method. Results In 17 monitoring counties with drinking water fluorosis area, the average completion rate of water change was 59.02% in 1996 and 50.27% in 1997. The mean urinary fluoride content in children was 2.0 in 1996 0 mg / L, 1.97% in 1997; the prevalence of dental fluorosis in children was 47.6% in 1996 and 47.74% in 1997. Conclusion At present, the task of water diversion at the monitoring points of endemic fluorosis in China is only about 50% on average, and the points are also not balanced. Some water diversion work in some counties is at a standstill, and some problems occur in the quality of the projects, thus increasing the fluorine content in water , Exceeding the standard. Therefore, the prevention and treatment of water-reducing and fluoride-lowering diseases in all the endemic areas should be strengthened