近十年期间,世界各地在饮水和土壤高氟和低氟含量地区进行了流行病学研究。在高山脚下和海源地质沉积物地区水中氟化物高也是众所周知的。从叙利亚通过约旦到摩洛哥的地理带和通过约旦到肯尼亚的裂谷具有代表性。起源于火山的氟化物也通过工业 During the past decade, epidemiological studies have been conducted in drinking water and high-fluorine and low-fluorine areas in soils all over the world. It is also well-known that fluoride is high in the water at the foot of high mountains and in the geological deposits of the Haiyuan area. Geographical bands from Syria through Jordan to Morocco and through the Rift to Jordan from Jordan are representative. Fluoride originated from volcanoes also passes through industry