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Fluoride

Posted by TheWaterStore on October 20, 2014  /   Posted in Contaminants

What is fluoride?

  • Fluoride is ubiquitous in the environment in water, rocks, plants and animals in small amounts.
  • It deposits in bone and in teeth as the fluorapatite mineral Ca5(PO4)3F — a very hard crystalline compound.
  • Many types of toothpaste are fluoridated.

What are current issues regarding fluoride?

  • Beginning in 1941, tooth decay studies in several Midwestern communities noted reduced incidence of dental cavities when higher levels of fluoride were present in their drinking water.
  • Many communities began to add fluoride to their drinking waters at about 1 ppm(parts per million), either as sodium fluoride or fluosilicic acid.
  • Numerous dental organizations advocate controlled fluoridation of drinking water; some states require fluoridation of water, and others have it as a community option. The federal government cannot require the addition of fluoride to drinking water for therapeutic purposes. However, governmental organizations such as the Centers for Disease Control (CDC) and the National Institute for Dental Research advocate its addition to reduce tooth decay in children.
  • Some advocacy groups have consistently opposed drinking water fluoridation as an involuntary medication, a possible risk and unnecessary because dental decay rates have been dropping even in non-fluoridated communities.

Health Considerations

  • Excessive fluoride in some world drinking water sources can cause crippling skeletal fluorosis or osteomalacia, which are serious bone and joint malformations.
  • Drinking water levels on the order of 1 or 2 to 4 mg/l can cause dental fluorosis ranging from very mild to moderate to severe, depending upon the amount of water consumed as well as total fluoride intake from all sources.
  • Fluoride has been tested in animals extensively without significant negative outcomes.
  • The cancer bioassay in rats and mice showed no increased cancer risk, but equivocal evidence.
  • Therapeutic doses of fluoride have been used in osteoporosis treatment, however beneficial effects have been marginal and sometimes increased risk of bone fracture was noted.

Global/National Trends

  • Fluoridation is widely practiced around the world but some countries such as Sweden, Holland and Czech Republic, have banned it.
  • The Israeli Health Minister recently announced a ban, but the current Prime Minister Netanyahu had endorsed fluoridation when he was health minister and advocated for a community option.

Regulation

  • The Primary Drinking Water Regulation for total fluoride is 4 mg/l; the Secondary (aesthetic) regulation is 2 mg/l. The World Health Organization (WHO) Guideline is 1.5 mg/l, which should be adjusted relative to climate and water consumption.
  • CDC recommends fluoridation at 0.7 mg/l to minimize mild dental fluorosis while maintaining dental benefits.

Water Treatment

  • Fluoride can be removed from water by reverse osmosis (Learn more about Reverse Osmosis).  Fluoride is removed from our purified drinking water via reverse osmosis.

Does our local municipality add fluoride to our tap water ?  

  • TMWA (Truckee Meadows Water Authority) currently does not add fluoride to the tap water.  This water system has a natural fluoride concentration below the level considered optional for the prevention of cavities.  Fluoride Concentration: 0.20 mg/L (per Centers for Disease Control and Prevention compiled data)

 

Information obtained from Water Technology Reports, May 2011 and local resources

Additional information can be found:
Centers for Disease Control ‘Community Water Fluoridation’
Live Science ‘Facts about Fluoridation’
Fluoride Action Network 

 

2 Comments

  1. m koi January 24, 2015 6:33 pm / Reply

    What is your stance on fluoride?
    It is not added to your water, right?

    Thanks

    • frescawaterhouse January 26, 2015 1:47 pm / Reply

      Hi,

      We do not add fluoride to the water. Our reverse osmosis purification system removes 99.9 % of contaminants, including fluoride.

      Our source water, from the Truckee Meadows Water Authority, as of this date does not add any fluoride to the water as well.

      There are many reports to the adverse long-term effects of fluoride in our drinking water, especially in children. The FDA has such required a warning on children’s toothpaste tubes because relatively small doses of fluoride can induce symptoms of acute fluoride toxicity. Early symptoms of fluoride poisoning include gastrointestinal pain, nausea, vomiting, and headaches.

      Please refer to the following for more information:
      http://www.ncbi.nlm.nih.gov/pubmed/8034913
      http://fluoridealert.org/studies/acute03/

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