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氟是卤族元素中最活泼的一员,它以各种化合物的形式,广泛存在于地球外壳的岩石、土壤和海水中,经水、食物等途径进入动植物体内。氟元素是人体维持健康必需的微量元素之一。人体硬组织——骨、牙釉质的正常矿化需要氟元素,许多种酶的活性也育氟的参予。成人每日需要氟元素1.0～1.5mg,不应大于3mg,如果摄入氟大于6mg/日,日积月累可导致慢性氟中毒;腐蚀性强的氟氢酸或容易溶解吸收的氟化钠会引起急性或亚急性氟中毒。地方性氟中毒是流行地区居民,因饮水或食物中高氟含量引起的慢性中毒疾病。工业性氟中毒是工业废气或废水中含氟量高,
Fluorine is the most active member of the halogen group. It is widely found in the earth’s crust, rock, soil and seawater in various forms and enters plants and animals through water, food and other means. Fluorine is one of the trace elements essential for human health. Human body hard tissue - bone, normal mineralization of the enamel need fluoride, many kinds of enzyme activity also fluorine participation. Adult need daily fluoride 1.0 ~ 1.5mg, should not exceed 3mg, if the intake of fluoride is greater than 6mg / day, over time can lead to chronic fluorosis; corrosive hydrogen fluoride or sodium fluoride can easily dissolve the absorption of acute Or subacute fluorosis. Endemic fluorosis is a disease of chronic poisoning caused by high fluoride content in drinking water or food in populations in endemic areas. Industrial fluorosis is a high content of fluorine in industrial waste gas or wastewater,