一、概况孟村回族自治县的地下水含氟量,由近年测得数据证实与井的深度成正比,即水井越深,含氟越高。十几年来有些大队随农田建设的发展,生活改用三百米以下深井水而出现了慢性氟中毒。在分析水含氟量时我们推测,浅层水含氟低很可能是表层土壤的净化作用,能否利用这 I. Overview The groundwater fluorine content in Mengcun Hui Autonomous County is confirmed by the data measured in recent years that it is directly proportional to the depth of the well. That is, the deeper the well, the higher the fluorine content. Over the past few decades, some brigades have experienced chronic fluorosis with the development of farmland construction and the conversion of life to deep well water below 300 meters. In the analysis of fluorine content in water, we speculate that the low fluorine in shallow water is likely to be the purification effect of surface soil.