氟是人体必需微量元素之一,但过量氟进入机体则会引起氟中毒。近年来,国内外学者对饮水型和食物型氟中毒进行了大量的研究,认为饮水或食品中氟含量过高与氟中毒的发生有着密切的关系。揭示了摄入过量氟对人体健康的危害,但对干热环境条件下,饮水和食物中氟含量并不高时,氟对人体健康的影响尚缺乏研究。为此,我们在1989年对 Fluorine is one of the essential trace elements of the human body, but excessive fluoride into the body can cause fluorosis. In recent years, domestic and foreign scholars have done a lot of researches on drinking water and food-type fluorosis. They think that there is a close relationship between the excessive fluorine content in drinking water and food and the occurrence of fluorosis. It reveals the harm of excessive fluoride intake to human health. However, the influence of fluoride on human health is still poorly studied when the fluorine content in drinking water and food is not high under dry and hot environment. For this reason, we were right in 1989