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  2. Fluoride toxicity - Wikipedia

    en.wikipedia.org/wiki/Fluoride_toxicity

    Referring to a common salt of fluoride, sodium fluoride (NaF), the lethal dose for most adult humans is estimated at 5 to 10 g (which is equivalent to 32 to 64 mg elemental fluoride/kg body weight). [ 2 ] [ 3 ] [ 4 ] Ingestion of fluoride can produce gastrointestinal discomfort at doses at least 15 to 20 times lower (0.2–0.3 mg/kg or 10 to 15 ...

  3. What is fluoride and why is it in the water? - AOL

    www.aol.com/finance/fluoride-study-dividing...

    The U.S. Public Health Service’s recommendation is a fluoride concentration of 0.7 mg/L of drinking water—and there were not enough data to determine if 0.7 mg/L of fluoride exposure in ...

  4. What a new study does — and doesn't — say about fluoride and ...

    www.aol.com/news/study-does-doesnt-fluoride-iq...

    That doesn't mean the water is fluoride-free: According to the Los Angeles Department of Water and Power, the city's groundwater contains fluoride at concentrations ranging from 0.1 to 0.3 mg/L ...

  5. What to know about fluoride in drinking water - AOL

    www.aol.com/news/know-fluoride-drinking-water...

    Water fluoridation is not mandatory, and while there is a recommended fluoride concentration in drinking water (0.7 milligrams per liter) from the CDC, that level is not an enforceable standard.

  6. Water fluoridation in the United States - Wikipedia

    en.wikipedia.org/wiki/Water_fluoridation_in_the...

    The CDC recommends water fluoridation at a level of 0.7–1.2 mg/L, depending on climate. The CDC also advises parents to monitor use of fluoride toothpaste, and use an alternative water source other than a natural water source with a fluoride concentration above 2 mg/L, for children up to the age of 8.

  7. Defluoridation - Wikipedia

    en.wikipedia.org/wiki/Defluoridation

    Defluoridation is the downward adjustment of the level of fluoride in drinking water. Worldwide, fluoride is one of the most abundant anions present in groundwater. Fluoride is more present in groundwater than surface water mainly due to the leaching of minerals. Groundwater accounts for 98 percent of the earth's potable water. [1]

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