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目的了解蚌埠市高氟水源分布及地方性氟中毒的患病情况,为城市改水降氟提供理论依据。方法选择蚌埠市10个乡镇的所有没有被城市供水管网覆盖的行政村,每个行政村按东、西、南、北、中5个不同方位采集饮用井水,其取样875份,检测水氟含量。通过Dean氏法调查每个行政村50名8～12岁儿童氟斑牙患病情况。结果蚌埠市地下水平均水氟含量为0.50mg/L,最高1.36mg/L,最低0.05mg/L。高氟水源的井深度在7～18m之间,高氟层分布相对较浅,8～12岁儿童氟斑牙患病率为6.02%。结论蚌埠市不属于地方性氟中毒病区,高氟水源的分布和水井深度有一定关系。儿童氟斑牙患病高度散发,患病率与患病儿童的年龄呈正相关关系。
Objective To understand the distribution of high-fluorine water sources and the prevalence of endemic fluorosis in Bengbu, and to provide a theoretical basis for the urban water and fluoride reduction. Methods All the administrative villages in 10 villages and towns of Bengbu were not covered by the urban water supply network. Each administrative village collected drinking well water in 5 different orientations of East, West, South, North and North. The sampling wells used 875 samples of water Fluorine content. The prevalence of dental fluorosis among 50 children aged 8-12 years in each administrative village was investigated by Dean’s method. Results The average water Fluoride content of groundwater in Bengbu was 0.50mg / L, the highest was 1.36mg / L and the lowest was 0.05mg / L. The well depth of high-fluorine water source is between 7 and 18 m, the distribution of high-fluorine layer is relatively shallow, and the prevalence of dental fluorosis in children aged 8 to 12 is 6.02%. Conclusion Bengbu City does not belong to the endemic fluorosis area, and the distribution of high-fluorine water sources has a certain relationship with the depth of wells. Children dental fluorosis highly distributed, the prevalence and the age of the children was positively correlated.