...effects and the levels added to water to prevent tooth decay is vanishingly small and deeply troubling," said Dr. J. William Hirzy, vice president of the Environmental Protection Agency's Headquarters Union in Washington D.C. "In my opinion...

...is toxic it was a difficult drug to prescribe and eventually as better drugs were found it was phased out. Dr. J. William Hirzy of the EPA has stated, "The difference between the levels of fluoride causing toxic effects and the levels added...