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The fluoxetine found in Lake Erie is at very low levels—about one nanogram per liter of water, Mauro said. "It doesn't appear to be at a level that would be harmful to humans,"
"[I]nfant formulas reconstituted with higher fluoride water can provide 100 to 200 times more fluoride than breastmilk, or cows milk." - Levy SM, Guha-Chowdhury N. (1999). Total fluoride intake and implications for dietary fluoride supplementation. Journal of Public Health Dentistry 59: 211-23.
"Seventy-one percent of the [sodas] had fluoride levels exceeding 0.60 ppm, which is considered to contain sufficient fluoride so that dietary fluoride supplements are contraindicated."- Heilman JR, et al. (1999). Assessing fluoride levels of carbonated soft drinks. Journal of the American Dental Association 130(11):1593-9.
"The average fluoride concentration of infusions prepared from decaffeinated (green & black) tea in this study is 3.19 ppm and ranged from 1.01 to 5.20. This is unexpectedly higher than caffeinated tea and such a difference is statistically significant. If decaffeinated tea were prepared with optimally fluoridated water, the fluoride content would be increased by 1 ppm and would reach an average of 4.19 ppm." - Chan JT, Koh SH. (1996). Fluoride content in caffeinated, decaffeinated and herbal teas. Caries Research 30:88-92.