Bisphenol A, from baby bottles to tin cans |

Jun 1 2008, 08:55 PM
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![]() Group: Administrator Posts: 4,961 Joined: 1-April 07 Member No.: 875 |
This chemical has recently shown up in the news lately.
Bisphenol A, mimics the female hormone estrogen, it has been found to affect fish in parts per trillion. It leaches out of certain plastics and the unnecessary epoxy linings in tin canned food. http://www.environmentaldefence.ca/pressro...news.php?id=306 "The study, Toxic Baby Bottles in Canada: Bisphenol A Leaching from Popular Brands of Polycarbonate Baby Bottles, found bisphenol A leaches at significant levels from plastic baby bottles when they are heated. Lab results found leaching of bisphenol A with a range of 5-8 ng/ml (parts per billion) among the bottles tested. Recent scientific research shows that bisphenol A can be harmful at doses below the levels found in the study." So what does the gov't do? http://www.hc-sc.gc.ca/ahc-asc/media/nr-cp.../2008_59_e.html "Canada is the first country in the world to complete a risk assessment of bisphenol A in consultation with industry and other stakeholders, and to initiate a 60 day public comment period on whether to ban the importation, sale and advertising of polycarbonate baby bottles which contain bisphenol A." But the amount of BPA in the plastic of baby bottles is only 5-8 parts per billion. Yet, it has been found in canned foods at levels as high as 17.9 parts per billion!: http://www.cbc.ca/consumer/story/2008/05/3...ns.html?ref=rss "Recent tests showed the presence of BPA in tomato sauce at 18.2 parts per billion and at 17.9 parts per billion in apple juice, according to a report by the Globe and Mail. The study also found trace amounts in apple juice, beer, canned soup and vegetables." Don't they use epoxy, on the inside of beer cans? Ever felt like you were being unwittingly marinaded? Use glass bottles, not cans. imo, lunk |
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Jun 1 2008, 09:46 PM
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#2
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![]() Group: Administrator Posts: 4,961 Joined: 1-April 07 Member No.: 875 |
http://toxsci.oxfordjournals.org/cgi/content/full/60/2/296
"Bisphenol A (BPA) is a monomer in polycarbonate plastics and a constituent of epoxy and polystyrene resins found extensively in food packaging and dental sealants. Human exposure to BPA is significant (Brotons et al., 1995Go; Olea et al., 1996Go), and its estrogenic activity is well established (Dodds and Lawson, 1936Go; Steinmetz et al., 1997Go). The ubiquitous organochlorine pesticide o,p'-DDT is also well documented as weakly estrogenic (Soto et al., 1995Go) and is present in human tissues (Hunter et al., 1997Go)." BPA is found in Styrofoam, too? You would think that a pharmaceutical company would contract out their plastic bottle division: http://www.the-innovation-group.com/ChemPr...sphenol%20A.htm "*Millions of pounds per year of bisphenol-A (4,4-isopropylidene diphenol, or BPA). All US producers make BPA through an acid-catalyzed condensation reaction of phenol with acetone. All companies have captive phenol and acetone supplies for BPA production and all except SUNOCO have captive BPA requirements for downstream resins. In 1999, Bayer expanded BPA production at Bayport, Tex., to 350-million-pounds, to serve the company's polycarbonate requirements at the site." I think I'm getting a headache. |
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lunk Bisphenol A Jun 1 2008, 08:55 PM
Timothy Osman QUOTE Don't they use epoxy, on the inside of b... Jun 1 2008, 09:08 PM
Timothy Osman I don't know what you're worried about Lun... Jun 2 2008, 01:17 AM
Oceans Flow QUOTE dental sealants
OMG! You scared me for ... Jun 2 2008, 05:13 AM
dMole QUOTE (Oceans Flow @ Jun 2 2008, 03:13 AM... Jun 2 2008, 07:30 AM
Omega892R09 QUOTE (dMole @ May 31 2008, 10:30 AM) Has... Jun 2 2008, 12:24 PM
lunk Shampoo...
There is something about the name.
T... Jun 2 2008, 11:20 AM
dMole Next item: Teratogens
http://msds.chem.ox.ac.uk/t... Jun 2 2008, 01:39 PM
Omega892R09 QUOTE (dMole @ May 31 2008, 03:39 PM) And... Jun 2 2008, 04:16 PM
lunk Teratogens seem to be anything that is suspected o... Jun 2 2008, 02:34 PM
dMole I believe that lunk is thinking of "carcinoge... Jun 2 2008, 02:42 PM
lunk Thanks,
I stand corrected, they are much more ins... Jun 2 2008, 03:02 PM
lunk My little spin on cancer,
or any disease...
The h... Jun 5 2008, 01:55 AM
lunk http://www.cbc.ca/documentaries/docplayer_...ml?id... Nov 11 2008, 02:57 PM
beatles64 I am skipping to the bottom here, so I hope I have... Nov 13 2008, 11:57 AM
lunk QUOTE (beatles64 @ Nov 13 2008, 07:57 AM)... Nov 13 2008, 12:17 PM
beatles64 I agree....I will admit that the occasional visine... Nov 13 2008, 12:27 PM
lunk It's necessary to wear goggles,
when spraying... Nov 13 2008, 12:45 PM
lunk QUOTE Bisphenol A (BPA) is a plastics chemical inv... Nov 30 2008, 03:24 PM
dMole On phenol groups:
A microbiology professor of min... Nov 30 2008, 04:27 PM
lunk Inorganic chemistry, all stems from sulfuric acid.... Nov 30 2008, 04:51 PM
dMole Backing up to Visine and tetrahydrozaline hydrochl... Nov 30 2008, 04:55 PM
lunk I wonder what happens when all these, unnecessary ... Nov 30 2008, 05:34 PM
lunk Bisphenol A was discovered, a long time ago, to be... Jan 1 2009, 09:11 PM
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