重庆市饮水型地方性氟中毒现况调查结果分析

Analysis of the Survey Results of Drinking Water Endemic Fluorosis in Chongqing Municipal

目的加强监测,掌握饮水型地方性氟中毒病区病情现状及进展,完成水氟可疑超标地区的饮用水氟含量筛查。方法按照GB/T5750-2006检测饮用水氟含量,并计算算术均值;如发现饮水氟含量超标(大于1 mg/L),则运用Dean法调查病区村8～12岁所有儿童氟斑牙情况,计算氟斑牙检出率,以及根据《地方性氟骨症的临床诊断标准》调查病区村16岁以上人群氟骨症情况,计算氟骨症检出率。结果共检测了150份饮用水,有6份水氟含量超过国家水氟含量标准(1.00 mg/L),合格率为96%;鹅颈关村儿童氟斑牙检出率为16.10%;氟骨症病人检出率为0。结论重庆市饮水型地方性氟中毒病区饮用水水氟含量合格,病情达到国家控制标准。

Objective To strengthen the monitoring, understand the status and progress of the water-endemic fluorosis and complete the survey of water fluoride content in drinking water in the areas suspected to exceed the standard, Method The fluoride content in drinking water was determined by the GB/T5750-2006, and arithmetic mean was calculated, If the fluoride level in drinking water reached the dangerous high level （〉1mg/L）, the dental fluorosis of all children aged 8-12 were surveyed, The detection rate of dental fluorosis was calculated, The skeletal fluorosis rate of the villagers over 16 years old were measured accordant to the ＂local skeletal fluorosis and clinical diagnostic criteria＂. Result 150 drinking water samples were tested. The fluoride content of 6 samples were over the national standard （ 1.00 mg/L）, with a pass rate of 96 percent. The detection rate of dental fluorosis in children was 16.10% in Gooseneck Guancun. The detected rate of skeletal fluorosis was 0. Conclusion The fluoride content of drinking water in the drinking water fluorosis endemic areas was not excess the standard and status of fluorosis in Chongqing was under control according to the national standard.