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氟是一种非金属气体元素,在自然界中分布很广。水、土、岩石、动植物体内都含有氟元素。人体各组织中也都含有氟。因此,它是一种身体所需要的“生命元素”。人体每日需从环境中摄取1.0—1.5毫克/升的氟,其中65％取自饮水,35％来自食物。可见饮水中氟的含量高低,是地方性氟病致病的主要原因。因此,在生活饮用水卫生标准中规定,氟的适宜浓度为0.5—1.0毫克/升,最高不超过1.0毫克/升。在研究
Fluorine is a non-metallic gas element, widely distributed in nature. Water, soil, rocks, plants and animals contain fluoride. The body tissues also contain fluorine. Therefore, it is a kind of “life element” needed by the body. The body needs to take 1.0-1.5 mg / L of fluoride daily from the environment, of which 65% is from drinking water and 35% from food. Shows the level of fluoride in drinking water is the main cause of endemic fluorine disease. Therefore, in drinking water health standards, the appropriate concentration of fluorine is 0.5-1.0 mg / l, up to 1.0 mg / l. In research