Nutopia Forum Index
Bay Area Forum for Asians
Log in to check your private messages
Advanced Search traditional simplified
star FAQ Search Memberlist Usergroups Register Log in star
青鳥   聖域回音 (全)   回音(全)   洛克人小說   寵物貼圖   Bay Area Happenings   素菜食譜   Free Medical Info   Random things   每日一女   牆紙桌布下載   流行音樂  
家常食譜   簡易微波爐食譜   小電影   免費軟硬電腦教學   IBM Content Manager  
Username:    Password:    Log me on automatically each visit   
                                                      
Nutopia Forum Index
Nutopia Forum Index Free Medical Info Study: BPA Is in Wide Variety of Paper Products
View previous topic :: View next topic
Post new topic     Reply to topic Page 1 of 1
Study: BPA Is in Wide Variety of Paper Products Sat Dec 03, 2011 8:26 am
Author Message
DoctorNutopia
萬人迷
萬人迷

Joined: 06 Nov 2009
Posts: 2981
Reply with quote

Post subject: Study: BPA Is in Wide Variety of Paper Products

Bookmark and Share
URL
Embed
Link
BBCode


Study: BPA Is in Wide Variety of Paper Products


Dec. 2, 2011 -- It seems there's no escaping the chemical bisphenol A (BPA), which is used to make plastics like water bottles and to coat the insides of aluminum cans.

Now a new study shows that BPA is also in a wide variety of paper products, including napkins, toilet paper, tickets, food wrappers, newspapers, and printer paper.

"The concentrations are very high in the paper products," says study researcher Kurunthachalam Kannan, PhD, a research scientist at the New York State Department of Health.

Kannan tested more than 200 paper samples from 15 different types of products.

He found BPA levels in paper that were 100 to 1 million times higher than amounts detected in canned and packaged foods.

The study is published in the journal Environmental Science and Technology.

Researchers say that because only a fraction of that is absorbed through the skin, most people probably pick up far less BPA handling paper than they do from their diets.

But those amounts may wind up being significant for people like cashiers or printers who have to touch a lot of BPA-tainted paper as part of their jobs.

"We've been focused on food, but there could be certain groups of people that could be exposed through other routes and other sources," says Joseph Braun, PhD, a research fellow at the Harvard School of Public Health, who is studying how BPA may affect kids' behavior. He was not involved in the latest study.

In Braun's studies, pregnant women who worked as cashiers had BPA levels that were about 30% higher than pregnant women who had different kinds of jobs.

BPA in Recycled Paper How did BPA get into paper? Probably recycling, researchers say.

A thin coating of powdered BPA is used on some kinds of heat-sensitive paper, like cash register receipts, shipping labels, and lottery tickets.

Researchers estimate that tossed thermal paper contributes about 33.5 tons of BPA to the environment each year.

About 30% of thermal paper winds up being recycled, introducing BPA into many different kinds of items.

That's concerning, researchers say, because BPA is chemically similar to the hormone estrogen. It has been linked to problems with reproduction and sexual development, to behavioral and developmental problems in young children, and to some kinds of cancer.

Experts say such studies are suggestive, but not conclusive. And they insist that there's no danger from BPA in paper.

"These are trivial exposures," far below the tolerable safe levels of BPA set by the Environmental Protection Agency, says John Heinze, PhD, executive director of the Environmental Health Research Foundation in Chantilly, Va., a nonprofit organization that does research for the American Chemistry Council, an industry group. "They don't really raise any concerns for safety. That's really what their data show."

http://www.webmd.com/cancer/news/20111202/study-bpa-is-in-wide-variety-of-paper-products?src=RSS_PUBLIC
View user's profile Send private message
Back to top
Study: BPA Is in Wide Variety of Paper Products Sat Dec 03, 2011 8:26 am
Author Message
Special Offers!
萬人迷
萬人迷

Joined: 06 Nov 2009
Posts: 2981
Reply with quote

Post subject:


Medical Info Blog








Study: BPA Is in Wide Variety of Paper Products




Study: BPA Is in Wide Variety of Paper Products
波多野结衣新 白性阁 華德妹 楊丞琳 ?ㄦ??茬?圭? 佐佐木希 
http;//www.kk44kk;net 黑絲 春暖花论坛公告区 逢澤莉娜 www.156sao 
moteloudian 涓や釜缇?濂虫??甯???濠峰┓??绱???txt qimi999 立花里子edk 惠美梨全集 
覃绮君 wwwyU777 美女诱惑 www.kk44kk 冲田杏梨快播 
对魔忍青山菜菜 涓讳汉????????????灏?璇 亚洲无码 春暖花开 城通网盘姬川丽 weimei 
qvodzy.org Mikie Hara 靓妹仔之失贞 torrent www,sex8cc@gmail 中川翔子 
瀹?????澶ц??浜轰??烘??27) 凌辱女友颖颖 青春美鲍美尻 sex8 春暖花开 论坛公告 周泓 ?鄞?览锊 
cqwww.net苍井空339 美幼专区 hohosex.com 关婷娜rufang ed2k 田中瞳 
AV封面 SEX8 性吧春暖花开 cqwww.net ??濂?娆㈣８? 比思论坛 大尺佑香 
水?虢蚴?vod 槟榔西施 cna5 淫娃燕小茹 Q播 明泽吉步 
View user's profile Send private message
Back to top
Post new topic     Reply to topic Page 1 of 1
Display posts from previous:
Back to top
Related Links:

Study: BPA Is in Wide Variety of Paper Products Study: BPA Is in Wide Variety of Paper Products Study: BPA Is in Wide Variety of Paper Products Study: BPA Is in Wide Variety of Paper Products Study: BPA Is in Wide Variety of Paper Products Study: BPA Is in Wide Variety of Paper Products Study: BPA Is in Wide Variety of Paper Products

Powered by phpBB 2001, 2002 phpBB Group
Powered by SO Software Online
Theme designed by What Is Real!? 2005
Register your domain name and build your site at UNI.CC
All times are GMT + 8 Hours