氟化物广泛分布于环境中,在地壳中元素含量的顺序排列第13位。在一些国家如印度、中国、日本、中东和非洲的一些国家中可发现饮用水中氟化物的量很高。在这些国家己观察到骨硬化和残疾的氟中毒患者。肯尼亚的地质学使得它成为世界上氟化物浓度最高地区之一,不仅在岩石和土壤中如此,地表水和地下水也是如此。因此,部分肯尼亚人暴露氟化物的量在世界上列为最高 Fluoride is widely distributed in the environment, ranking 13th in the order of elemental content in the crust. In some countries, such as India, China, Japan, the Middle East and Africa, high levels of fluoride are found in drinking water. Fluorosis patients with osteopetrosis and disability have been observed in these countries. Geology in Kenya makes it one of the highest fluoride concentrations in the world, not only in rocks and soils, but also in surface and groundwater. As a result, some Kenyans exposed fluoride as the highest in the world