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Paper receipts also seen as source of BPA exposure

WASHINGTON - As lawmakers and health experts wrestle over whether a controversial chemical, bisphenol-A, should be banned from food and beverage containers, a new analysis by an environmental group suggests Americans are being exposed to BPA through another, surprising route: paper receipts.

The Environmental Working Group found BPA on 40 percent of the receipts it collected from supermarkets, automated teller machines, gas stations and chain stores. In some cases, the total amount of BPA on the receipt was 1,000 times the amount found in the epoxy lining of a can of food, another controversial use of the chemical.

Sonya Lunder, a senior analyst with the environmental group, says BPA's prevalence on receipts could help explain why the chemical can be detected in the urine of an estimated 93 percent of Americans, according to the Centers for Disease Control and Prevention.

"We've come across potentially major sources of BPA right here in our daily lives," Lunder said. "When you're carrying around a receipt in your wallet for months while you intend to return something, you could be shedding BPA into your home, into your environment. If you throw a receipt into a bag of food, and it's lying there against an apple, or you shove a receipt into your bag next to a baby pacifier, you could be getting all kinds of exposure and not realize it." What remains unknown is how much of the chemical that may rub off onto the hands is absorbed through the skin or whether people then ingest BPA by handling food or touching their mouths.

Among those surveyed, receipts from Safeway supermarkets contained the highest concentration of BPA. Brian Dowling, a Safeway spokesman, said the company is researching the issue and consulting with its suppliers of receipt paper.

First synthesized in 1891 and developed in the 1930s as a synthetic form of estrogen, bisphenol-A has been widely used in commercial products including plastic bottles, compact discs and dental sealants.

While it was regarded as safe for decades, recent research using sophisticated analytic techniques suggests that low doses of the compound can interfere with the endocrine system and cause a range of health effects, including reproductive problems and cancer.

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