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About 200,000 Americans have drinking water with fluoride concentrations at or above the EPA's limit, and 1.4 million have water with levels between 2 and 3.9 ppm, including parts of Colorado, West Texas, New Mexico, Indiana and Illinois. No Californians have tap water with fluoride that approaches the amount the scientific panel found unsafe, because state regulations limit the concentration to 2 ppm.
About two-thirds of Americans, or 162 million people, drink from fluoridated water supplies, which contain a fluoride concentration of about 1 ppm, much less than the amount the panel found had adverse health effects.
What are EPA's drinking water regulations for fluoride?
In 1974, Congress passed the Safe Drinking Water Act. This law requires EPA to determine the level of contaminants in drinking water at which no adverse health effects are likely to occur. These non-enforceable health goals, based solely on possible health risks and exposure over a lifetime with an adequate margin of safety, are called maximum contaminant level goals (MCLG). Contaminants are any physical, chemical, biological or radiological substances or matter in water.
The MCLG for fluoride is 4.0 mg/L or 4.0 ppm. EPA has set this level of protection based on the best available science to prevent potential health problems. EPA has set an enforceable regulation for fluoride, called a maximum contaminant level (MCL), at 4.0 mg/L or 4.0 ppm. MCLs are set as close to the health goals as possible, considering cost, benefits and the ability of public water systems to detect and remove contaminants using suitable treatment technologies. In this case, the MCL equals the MCLG, because analytical methods or treatment technology do not pose any limitation.
EPA has also set a secondary standard (SMCL) for fluoride at 2.0 mg/L or 2.0 ppm. Secondary standards are non-enforceable guidelines regulating contaminants that may cause cosmetic effects (such as skin or tooth discoloration) or aesthetic effects (such as taste, odor, or color) in drinking water. EPA recommends secondary standards to water systems but does not require systems to comply. However, states may choose to adopt them as enforceable standards. Tooth discoloration and/or pitting is caused by excess fluoride exposures during the formative period prior to eruption of the teeth in children. The secondary standard of 2.0 mg/L is intended as a guideline for an upper bound level in areas which have high levels of naturally occurring fluoride. The level of the SMCL was set based upon a balancing of the beneficial effects of protection from tooth decay and the undesirable effects of excessive exposures leading to discoloration.
Originally posted by minor007
Originally posted by CrazyRaccoon
reply to post by minor007
It states that fluorine is toxic YOU said that it comes from sodium fluoride magically turning into a gas known as fluorine and it is safe and no danger is present
Fluorine is safe in small quantities and it is a vital element needed by the body. Also what I said was that when Sodium fluoride is mixed with water a chemical reaction takes place. The reaction frees the fluorine from the sodium and it bonds with the hydrogen from the water producing HF the same gas you breath in at the seaside or on the ocean.
Originally posted by CrazyRaccoon
reply to post by minor007
Are you trying to say that the British people have it better? hah please don't make me laugh they have so much cameras and no guns that it's a joke
And DUDE what are you talking about? where do you get your information from?
America's highest fluoride content is 1.4ppm i'm pretty sure UK has the same amount...
Yeah the fluoride is there because they PUT IT THERE...sodium fluoride does not form naturally it has to be man-made...calcium fluoride is natural and occurs in nature.
4ppm yeah right.edit on 14-1-2012 by CrazyRaccoon because: (no reason given)edit on 14-1-2012 by CrazyRaccoon because: (no reason given)
Originally posted by MagnumOpus
Originally posted by minor007
Originally posted by CrazyRaccoon
reply to post by minor007
It states that fluorine is toxic YOU said that it comes from sodium fluoride magically turning into a gas known as fluorine and it is safe and no danger is present
Fluorine is safe in small quantities and it is a vital element needed by the body. Also what I said was that when Sodium fluoride is mixed with water a chemical reaction takes place. The reaction frees the fluorine from the sodium and it bonds with the hydrogen from the water producing HF the same gas you breath in at the seaside or on the ocean.
=======
Now,.... every "intelligent" person that I know that knows chemistry would never be so dumb as to claim there is HF in water, as that can't happen. HF can only exist when water isn't around.
HF is extremely hygroscopic and will combine with even water vapor in the air in an instant. It is so hygroscopic that it forms a fog or clouds from conversion of water vapor to water aerosol. Coal fired plants release HF and these release goes toward actually affecting the weather by making clouds and rainfall. These acid releases also go toward soil pH problems, uptake of toxic metals in the food chain, and is connected to the animal illness problems similar to mad cow effects.
Which means if HF was formed, in an instant it would become hydrofluoric acid. It won't exist in a water pipe.
Hydrofluoric Acid BP is around 112 C.
So, congrats on making a fool out of yourself with invalid chemistry claims.edit on 14-1-2012 by MagnumOpus because: added content
Originally posted by CrazyRaccoon
reply to post by minor007
And i also bet that you didn't know that different places have different pH levels in the water RIGHT?
Originally posted by connorromanow
reply to post by CrazyRaccoon
i still dont fully get this whole thing though, the human bosy needs fluoride in some form, so where are we supposed to get it from if sodium fluoride is so bad
Originally posted by connorromanow
reply to post by CrazyRaccoon
i still dont fully get this whole thing though, the human bosy needs fluoride in some form, so where are we supposed to get it from if sodium fluoride is so bad