Ocean water is 1.2ppm and max allowable drinking water
Posted on: December 4, 2024 at 18:27:12 CT
Spanky KU
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amount is 4ppm. In 2011 HHS announced plans to lower its fluoride-level recommendation from 1.0 to 0.7 ppm
Edited by Spanky at 18:30:28 on 12/04/24