Safety of Water Fluoridation

• Fluoridation Chemicals meet standards

• Trace contaminants, such as heavy metals

• Must not exceed the Maximum Allowable Level (MAL)

• one-tenth of the EPA’s regulated MCL
• when added to drinking water at its Maximum Use Level

• No detectable arsenic or lead in the majority of more than 100 samples of water fluoridated with fluorosilicic acid, tested by NSF International from 1992 to 2000

• The average concentration of arsenic and lead from all samples was less than 0.1 ppb (parts per billion)

• Action Level Lead 15 ppb;

• MCL arsenic 10 ppb (January 2006)