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饮水型地方性氟中毒在我国分布广,危害严重,降氟改水是防治饮水型地氟病的有效方法。辽阳市地方性氟中毒病区分布在辽阳县5个乡(镇)、150个病区村屯,为了解改水工程运行情况、病区病情变化,2011年对辽阳市地方性氟中毒病情进行了调查。1对象与方法1.1改水工程运行情况调查辖区饮水型氟中毒病区改水工程完成情况。在监测县采用单纯随机抽样方法抽取3个已改水病区村(屯),调查改水工程运转情
Drinking water endemic fluorosis is widely distributed in our country, endangering serious, reducing fluoride to water is an effective way to prevent and treat drinking-type fluorine disease. Liaoyang City, endemic fluorosis area located in Liaoyang County 5 townships (towns), 150 ward village, in order to understand the operation of water projects, ward disease changes in 2011, Liaoyang City, endemic fluorosis The investigation. 1 objects and methods 1.1 water projects to investigate the operation area of drinking water fluoride poisoning ward to complete the project. In the monitoring counties, only 3 villages with water-affected areas were extracted by simple random sampling method to investigate the working conditions of water-diversion works