Blood levels of BPA become source of controversy

Values reported for humans appear high, study charges, possibly suggesting contamination or exaggerated exposures

By Janet Raloff, 16:44 PM February 17, 2013

BOSTON — The ubiquity of the pollutant bisphenol A in many plastic products, food-can linings, cash-register receipts and dental resins means that everyone is exposed to it daily. But controversy remains about how much BPA people actually ingest or otherwise encounter. New data reported at a February 16 symposium raised red flags over the accuracy of previously reported human blood concentrations of BPA — amounts described over the years as being representative of the general population.

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