Study: BPA Often Undetectable in Blood of Adults
Most of the Chemical Is Quickly Eliminated in Urine, Researchers Say
Impact of BPA on Children Unknown
The CDC’s Calafat says the finding that blood levels of bioactive BPA are much lower than urine levels is not a big surprise.
“Based on the properties of BPA we would expect to see this,” she says.
The study appears in the September issue of the Journal of Toxicological Sciences.
In a news release, the industry trade group North American Metal Packaging Alliance called the research a “landmark study” providing “definitive evidence that adverse health effects from bisphenol A are highly unlikely.”
Sonya Lunder, who is a senior analyst with the research and advocacy organization Environmental Working Group, says although the findings are somewhat reassuring for adults, the study did not address the safety of BPA exposure in developing fetuses, babies, and children.
“Ninety-five percent of Americans have measurable BPA in their urine on any given day,” she tells WebMD. “A longstanding concern has been that children, infants, and developing fetuses may have no ability or very limited ability to metabolize this chemical the way adults do.”
Calafat says a host of studies funded by a $14 million grant from the American Recovery and Reinvestment Act should shed new light on the safety or harms of BPA exposure in adults and children within the next year or so.