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1983年全省地方性氟中毒流行病学的调查证实,我县部分村、组发生的地方性氟中毒系由于饮用含氟较高的浅井水所致。针对这一情况,采取了打深井改水降氟的防治措施。现将改水降氟工程及其效果评价如下。方法饮用浅井水含氟量在1.0mg/L和氟斑牙患病率30％以上的村、组,均列入打深井改水规划。1984～1986年底,共打深井25口。
In 1983, the epidemiological survey of endemic fluorosis in the whole province confirmed that endemic fluorosis in some villages and groups in our county was caused by the consumption of shallow well water with high fluorine content. In response to this situation, take a deep well water and fluoride prevention and control measures. Will now change water fluoride project and its results are as follows. Methods Villages and groups with a fluoride content of 1.0 mg / L in shallow wells and a prevalence rate of more than 30% of dental fluorosis were included in the plan for water diversion. From 1984 to 1986, a total of 25 deep wells were drilled.