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American Chemical Society's Weekly PressPac


Harold J. W. Zandvliet, Ph.D.
University of Twente
MESA+ Institute for Nanotechnology.
Enschede, The Netherlands
Phone: 31(0) 53 489 3091
Fax: 31(0)53 489 1101


Potentially toxic flame retardants highest in California households
Environmental Science & Technology

In what may be an unintended consequence of efforts to make furniture safer and less flammable, residents of California have blood levels of potentially toxic flame retardants called PBDEs at levels nearly twice the national average, scientists from Massachusetts and California are reporting. Their study, the first to examine regional variations in PBDE levels in household dust and blood within the U.S., is scheduled for posting online Oct. 1 by ACS' semi-monthly journal Environmental Science & Technology.

In the new study, Ami Zota and colleagues note that PBDEs (polybrominated diphenyl ethers) are widely used as flame retardants in upholstered furniture and electronics. The materials are released into the environment as dust particles, where they can accumulate in homes as well as human blood and tissue. Although their exact effects in humans are unclear, studies in animals suggest that PBDEs may cause thyroid, developmental, and reproductive problems. Since California has among the most stringent furniture flammability standards, the researchers suspected that state residents may have higher levels of PBDE dust exposure than others in the United States.

To find out, the scientists compared data on PBDE concentrations in house dust from 49 California homes with concentrations reported from 120 Massachusetts homes and several other areas. The researchers also

Contact: Michael Woods
American Chemical Society

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