A Comparison of Sodium Fluoride in the Drinking Water with Similar Levels of Cryolite in the Diet on the Fluorine Content of the Body
One Figure
S. Marcovitch and
W. W. Stanley1
Agricultural Experiment Station, University of Tennessee, Knozville
1. Rats on 4 p.p.m. of fluorine in drinking water as sodiumfluoride retain nearly twice as much fluorine in the body ason 4 p.p.m. of fluorine as cryolite in the diet. This is duein part to the greater consumption of fluorine in the drinkingwater, but no doubt solubility is also a factor. In practicefluorine-bearing waters are also employed in cooking, and ifwe had employed a diet cooked in fluorine-containing water,the retention would have been still greater.
2. The femalesshowed a significantly greater percentage offluorine in theirbodies than the males when given fluorineadditions to the dietor drink.
3. No significant differences were noted in thefluorine ofthe body in the sexes of the control groups (29days to 90 days).
1 Valuable assistance in feeding the animals was rendered by F.L. MacLeod and Evelyn Utley. We wish also to acknowledge theanalytical assistance on the determination of fluorine by R.J. Rowley, of the Aluminum Research Laboratories.