阜阳市农村水氟浓度和改水降氟工作的现状调查

目的了解阜阳农村地区饮水氟浓度一般情况，为该市地方性氟中毒防治提供科学依据。方法对阜阳市5县3区共计4064个行政村进行调查，每个行政村抽取东、南、西、北、中5份饮用水水样，检测饮用水样水氟浓度。结果阜阳市5县3区4064个行政村共采集饮用水水样20316份，其中超标水样4629份，超标率为22．8％；4064个行政村饮用水水氟平均值超标水样为848份，超标率为20．9％。在所有的水样中，水样水氟浓度最高的为4．07mg／L，最低的为未检出。太和县和界首市水氟值较高，平均浓度为（1．03±0．29）mg／L和（1．02±0．29）mg／L。结论阜阳市农村饮用水水氟超标率总体处在全国中等水平，但太和县和界首市相对比较严重。

A cross-sectional survey of fluoride concentration of water and defluoridation in the country of Fuyang

Objective To find out the state of fluorine concentration of drinking water basic situation and provide scientific evidence for endemic fluorosis prevention and control in Fuyang City, Anhui Province. Methods Tests were conducted in 4 064 administrative villages in 5 counties and 3 districts in Fuyang City. 20 316 samples of drinking water were tested for the concentration of fluorin, which were from the east, south, west, north and center of each administrative village. Results Among the 20 316 drinking water samples, 4 629 exceed the stipulated standards, accounting for 22.8 %. The average value of 848 administrative villages was over the standards among 4 064 administrative villages, and the rate was 20.9 %. The fluoride content ranged between 0 to 4.07 mg/L among the 20 316 drinking water samples. The fluoride content of drinking water in Taihe County and Jieshou City was higher than others, with an average value of 1.03±0.29 and 1.02±0.29, respectively. Conclusions In general, the endemic fluorosis was middling in Fuyang City, but the Taihe County and Jieshou City were serious.