-- Robert Preidt
TUESDAY, Feb. 22 (HealthDay News) -- Concentrations of bisphenol
A -- a chemical commonly used in making plastics -- are much lower
in Canadians than Americans, a new study has found.
Bisphenol A (BPA) is used in a wide range of common products,
from food packaging to electronic equipment and cars. Studies have
shown that the chemical affects the reproductive systems of animals
and this has raised concerns that it may have similar harmful
effects in humans.
In October 2010, Canada became the first country in the world to
declare BPA a health hazard.
The new study looked at BPA levels in Canadians and found that
children and adolescents had the highest levels. This may be due to
exposure to BPA in baby bottles or children's toys, or because
children eat more food relative to their body mass, compared with
adults, study author Laura Vandenberg, of the Center for
Regenerative and Developmental Biology at Tufts University in
Medford, Mass., explained.
Vandenberg also compared BPA concentrations in Canadians and
Americans, and found they were much lower in Canadians.
"The comparison between concentrations measured among Canadians and Americans are particularly interesting, because these two populations are often thought of as demographically similar," Vandenberg wrote in the report, published Feb. 22 in CMAJ: the Canadian Medical Association Journal. "Surprisingly, for each age group that was analyzed, the concentrations found among Canadians were about half those found in Americans."
Differences in the way food products are packaged in each
country may be a factor, she suggested.
The U.S. National Library of Medicine has more about
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