Zero_Sen
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Props to Dudeski for bringing this info. to attention earlier in a different sherdog subforum, but I'm going to post it here since I thought D&S's would find it interesting:
I'm sure a lot of you are familiar with the general problems of reusing plastic water bottles.
They've been addressed in D & S before: http://www.sherdog.net/forums/showthread.php?t=651664&highlight=water+bottles
But here's something you might not know:
(from http://leas.ca/On-the-Trail-of-Water-Bottle-Toxins.htm)
Some additional elaboration on the subject:
(http://doctorariel.blogspot.com/2007/07/plastic-blues-how-your-water-bottle-can.html)
And the kicker is that this warning applies to Nalgene bottles (or any hard plastic, reuseable water bottles made with BPA).
And it gets worse:
(from http://www.infocafe.com/index.php?name=News&file=article&sid=247).
And I thought I was in the clear as far as reusable water bottle issues go because I use a Nalgene bottle, wash it often with hot soapy water, and periodically sanitizing it with diluted bleach. Turns out I may have been making things worse.
And while there are conflicting findings with respect to BPA, plastic water bottles, and adverse effects on humans, some researchers point out the following:
http://www.ourstolenfuture.com/NewScience/oncompounds/bisphenola/2005/2005-0413vomsaalandhughes.htm
More reading:
http://www.infocafe.com/index.php?name=News&file=article&sid=247
http://doctorariel.blogspot.com/2007/07/plastic-blues-how-your-water-bottle-can.html
http://leas.ca/On-the-Trail-of-Water-Bottle-Toxins.htm
I've heard that stainless steel or glass water bottles are good alternative, but apparently not all plastic bottles are bad:
http://en.wikipedia.org/wiki/Nalgene#Controversy
I'm sure a lot of you are familiar with the general problems of reusing plastic water bottles.
They've been addressed in D & S before: http://www.sherdog.net/forums/showthread.php?t=651664&highlight=water+bottles
But here's something you might not know:
According to several recent studies, polycarbonate plastic readily leaches a chemical called bisphenol-A (BPA) into foods and liquids that are stored in containers made from it. BPA has been identified as an endocrine disrupting chemical, or a chemical that easily mimics hormones when absorbed by the human body. In the case of BPA, the hormone being mimicked is estrogen.
(from http://leas.ca/On-the-Trail-of-Water-Bottle-Toxins.htm)
Some additional elaboration on the subject:
What happens when this plastic does get into your body? ... This type of plastic stays in the body. It is quite active. It disrupts hormones by fooling the body to recognize it as the hormone estrogen. This form of estrogen does not have the same effect as a biological form. It is more likely to result in harmful effects. This means that for women, it may increase their risk of breast cancer. In men, it can lower sperm count and contribute to infertility. An exogenous estrogen, as this is called, does not break down after time, as the natural estrogens to.
(http://doctorariel.blogspot.com/2007/07/plastic-blues-how-your-water-bottle-can.html)
And the kicker is that this warning applies to Nalgene bottles (or any hard plastic, reuseable water bottles made with BPA).
And it gets worse:
The chemical can leach from the plastic, especially when the containers are heated, cleaned with harsh detergents or exposed to acidic foods or drinks.
(from http://www.infocafe.com/index.php?name=News&file=article&sid=247).
And I thought I was in the clear as far as reusable water bottle issues go because I use a Nalgene bottle, wash it often with hot soapy water, and periodically sanitizing it with diluted bleach. Turns out I may have been making things worse.
And while there are conflicting findings with respect to BPA, plastic water bottles, and adverse effects on humans, some researchers point out the following:
In the last 7 years (through to December 2004), 115 relevant studies have been published. None of the 11 funded by industry reported adverse effects at low level, whereas 94 of 104 government-funded studies found effects. These many studies were conducted in academic laboratories in Japan, the US and Europe.
http://www.ourstolenfuture.com/NewScience/oncompounds/bisphenola/2005/2005-0413vomsaalandhughes.htm
More reading:
http://www.infocafe.com/index.php?name=News&file=article&sid=247
http://doctorariel.blogspot.com/2007/07/plastic-blues-how-your-water-bottle-can.html
http://leas.ca/On-the-Trail-of-Water-Bottle-Toxins.htm
I've heard that stainless steel or glass water bottles are good alternative, but apparently not all plastic bottles are bad:
An alternative is available in the polyethylene versions of these products (made out of HDPE, Nalgene's traditional material), which are free of these chemicals. They can be identified by their greater flexibility, their translucent, "milky" appearance, and by the number 2 triangular plastic recycling symbol on the bottom, rather than the number 7 on a polycarbonate bottle.
http://en.wikipedia.org/wiki/Nalgene#Controversy