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Cancer Health Center

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BPA Can Rub Off From Receipts, Money, Study Finds

Environmental Group Suggests Less Handling of Receipts, but Industry Says Chemical Exposure Is Low
WebMD Health News
Reviewed by Laura J. Martin, MD

Dec. 8, 2010 -- Bisphenol A or BPA, a common chemical found in plastics and other consumer products that's been linked to reproductive harm and other ills, can also be transferred to the skin from cash register receipts and dollar bills, according to a new investigation by two environmental advocacy groups.

"BPA is a developer used in the thermal paper," says Erika Schreder, a staff scientist at the Washington Toxics Coalition and author of the new report, "On the Money: BPA on Dollar Bills and Receipts." It's found in the receipts used by probably 95% of stores, she tells WebMD.

Together with the Safer Chemicals, Healthy Families coalition, the Washington Toxics Coalition researched the extent to which thermal paper containing BPA has permeated the market, whether BPA also escapes onto money that is usually close to those receipts in the wallet, and whether the chemical easily transfers to skin.

As a result of the investigation, Schreder recommends people handle receipts as little as possible. But a spokesperson for the Polycarbonate/BPA Global Group says there is no reason to worry.

A Closer Look: BPA in Receipts and Money

For the study, researchers collected 22 receipts made with thermal paper from 22 retailers in 10 states and Washington, D.C. The sites included grocery stores, home improvement, discount, and retail stores.

Researchers also collected dollar bills from 18 states and D.C., testing 22 in all.

BPA was found in what Schreder calls very large quantities in 11 of the 22 receipts -- in amounts up to 2.2% of the total weight.

BPA was found in 21 of the 22 bills tested.

Because the BPA used in thermal paper is not chemically bound, it is a concern, Schreder says. "We are definitely concerned about these levels of BPA in receipts because BPA is present in an unbound form, where it can easily transfer to our skin."

To see how easily it may transfer, researchers conducted tests mimicking a typical handling of receipts. BPA was transferred from receipts to fingers. Just 10 seconds of holding a receipt resulted in a transfer of up to 2.5 micrograms, the researchers found.

And rubbing the receipt -- similar to scrunching it or fiddling with it -- transferred about 15 times that amount.

"BPA is a hormone-disrupting chemical," Schreder says, capable of causing problems such as reproductive harm, early puberty, and infertility.

The big concern is overall exposure, she says, with BPA from receipts and money adding to the total.

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