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View Diary: Who wants fluoride in their beer? (148 comments)

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  •  Hello? (2+ / 0-)
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    6412093, jessical

    There are a number of parts of the country where the natural levels of flourine exceeds not just what's put in to prevent tooth decay, but at a level that tends to cause problems.  Most notable is southern California (per the various maps), where I assume they have to remove it.  (Portland may already have sufficient natural flouride, in which case I admit it's not clear why you would add more; I believe your water company is required to report the flouride content of your water so if you live there, you can find out.  Water systems are required not have to have more than 4.0 milligrams per liter; above 2.0 mg/l they are required to notify customers.  The 2.0 mg/l limit is there because above that it does cause tooth colorization and in my mind is the safe upper limit.  The current optimal level for tooth decay prevention is something around 0.7 mg/l.  Again, this is below the typical level that occurs naturally in many areas.

    There are two side effects of flouride in water:

    1. At some level above the limit, on a sustained basis, it causes tooth decolorization.

    2. At very high levels, it causes bone problems and is a public health concern.  In Los Angeles, I'd be surprised if they don't remove it from the water.

    You can argue about the ethics of using 80% of the US as a clinical test, but water has been flouridated since World War II (by the time the John Birchers went after it in the 1950s, there was a lot of data to prove its efficacy).  I've been drinking tap water for about 57 years now and, to paraphrase Peter Sellers, there's nothing wrong with my bodily fluids.

    By the way, most of the same remarks could be made about chlorination of public water.  (Chlorine is really quite toxic; read the labels on your Clorox bottle.)  If they didn't chlorinate water, most tap water in the US would be non-potable.  I didn't consent to having my water chlorinated either, despite the fact that chlorine, unlike flouride, definitely impairs my precious bodily fluids and intuitively is not healthy.  Why is it there?  Because the hazards from low levels of chlorine are vastly outweighed by the hazards of contaminated water.

    •  Chlorine breaks down (0+ / 0-)

      Otherwise you would only have to put it in your pool once. Plus the benefits outweigh the risks.

    •  Portland's water is generally fluoride free (0+ / 0-)

      Portland gets its water from two sources.  The primary source is the Bull Run watershed on the west side of Mount Hood.  The second source is the Columbia South Shore well field, which obtains water from wells completed in an alluvial aquifer near the Columbia River.

      Bull Run water generally has low to non-detectable levels of fluoride. Water from the well field has low levels of fluoride; below the 0.7 mg/L target for public health maintenance. Hence, the proposal to add fluoride to achieve that level.

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