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氟对机体具有双重生物学效应。适量摄取产生有益影响，过量则产生危害作用。研究表明［1］长期摄氟对动物体内微量元素分布产生一定影响。亦有资料表明，大鼠染氟早期体内超氧化物歧化酶（suPeroxidedismutase，SOD）活性增加［2］。本文对动物实验观察高氟负荷大鼠血、尿中锌
Fluorine has a dual biological effect on the body. Appropriate intake of beneficial effects, excessive harm. Studies have shown that [1] long-term fluoride exposure has some effect on the distribution of trace elements in animals. There are also data show that rats with fluoride early body superoxide dismutase (suPeroxidedismutase, SOD) activity increased [2]. In this paper, animal experiments observed fluoride-loaded rats blood, urine zinc