Abstract
W. Machle and E. E. Evans (J. Indust. Hyg. and Toxicol., 22, 213; 1940) have reviewed the literature on the effect of industrial exposure to fluorine and record the following personal observations. They found that five years of intermittent exposure to concentrations of fluorine which were harmful to rabbits and monkeys were tolerated by a group of industrial workers without clinical or röntgenological evidence of damage and without injury to the blood as shown by hæmatological examination. Comparative examinations showed them that the exposure of the workers resulted in the absorption of more than three times the normal amount of fluorine. Experiments on animals indicated that this continuous absorption would result in the deposit of abnormally large amounts of fluorine in the teeth and bones, but clinical evidence of this kind has not yet appeared.
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Exposure to Fluorine in Industry. Nature 146, 330 (1940). https://doi.org/10.1038/146330b0
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DOI: https://doi.org/10.1038/146330b0