
There is a wide known chemical called Bisphenol-A also known as BPA that has been widely researched and is used in many of our plastics including, sippy cups, the epoxy linings of canned food, baby bottles, nalgene bottles and countless other items (#7 on the bottom).
The FDA just ruled that this chemical is not dangerous when many legitimate scientists and other independently financed studies (unbiased studies) have proved it's direct connection to obesity, developmental problems, risk for heart attack, breast cancer, prostate cancer, and increased risk of type II diabetes, hypertension,
dyslipidemia.
This is scary seeing how the FDA should ban any chemical that is linked to any health risk and they haven't. The two most recent studies performed by the FDA were both paid for by the plastic industry.
When the plastic that contains BPA is heated up, ran through the dishwasher, or exposed to boiling water the chemical breaks down and BPA seeps into the food contents in the container.
Last night I just through away about 10 bottles with the #7 on the bottom, containing BPA. I will look through my Tupperware this weekend!
7 Ways to beat BPA, in order of Importance:
1. Ditch the clear plastic baby bottles, right now. All the research that says there are problems point at the effect of the estrogen-like BPA on children as being the most significant.
2. Tin cans are often lined in plastic BPA and sit around a long time; get rid of older tin cans, particularly if they contain tomatoes and other acidic fruits.
3. Don't use your polycarbonate bottle for hot drinks.
4. Polycarbonate bottles get crazed and cracked as they get older; that increases surface area. Get rid of old ones.
5. Replace your Polycarbonate bottle with a Sigg, Kleen Kanteen, or the new BPA free Camelbak, particularly if pregnant or pre-pubescent.
6. Replace jugs where water sits around a long time, like Brita knockoffs. (Brita says they are BPA free)
7. Stop using jugged water cooler water, get a filter and cooler that uses city water. It is a big jug so there probably isn't much of a problem, but why are you drinking bottled water anyways?
Here are just a few of the hundreds of studies that have been done on this chemical:
http://www.chej.org/BPA_Website.htm
http://www.ewg.org/reports/bisphenola
http://www.environmentcalifornia.org/reports/environmental-health/envi ro...
http://www.mindfully.org/Plastic/Plasticizers/Phthalates-Bisphenol-A-D ev...
http://www.cbc.ca/health/story/2008/01/30/bisphenol-study.html
Ap Article and Sources:
http://www.ourstolenfuture.org/NewScience/oncompounds/bisphenola/2005/2005-0921alonso-magdalenaetal.htm
http://www.earthtimes.org/articles/show/fda-decision-on-bpa-outrages-h ea...
http://www.treehugger.com/files/2008/04/bpa-in-water.php
http://greenopolis.com/myopolis/blogs/david+d/big-plastic-paid-off-the-fda