'The present data raise urgent concerns that risks to human health have also been dramatically underestimated.'
At the end of November, the New York City Council announced that it would be considering four bills that aim to reduce paper waste from store receipts, including the obnoxiously long ones that have become synonymous with shopping at a particular drug store chain. But in addition to reducing the city's collective carbon footprint, the bills also raise the possibility of phasing out the use of receipt paper that is coated"Buying a candy bar shouldn’t require a four-foot receipt.
, it is still widely used—and a new study suggests that the U.S. Food and Drug Administration has significantly underestimated humans' exposure to the chemical., the authors explain that the human body quickly breaks BPA down into metabolites. The FDA and other agencies currently measure BPA exposure indirectly, by using an enzyme to convert metabolites in human urine back to BPA, and then measuring the amount of BPA present.
"To our knowledge, our data provide the first evidence that this is a flawed analytical tool for measurement of BPA levels,"." Importantly, because estimates of human exposure have been based almost exclusively on data from indirect methods, these findings provide compelling evidence that human exposure to BPA is far higher than has been assumed previously.
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