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Potentially Toxic Flame Retardants Highest In California Households

Date:
October 8, 2008
Source:
American Chemical Society
Summary:
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.

Scientists report that California residents have higher-than-average blood levels of a possibly toxic flame retardant called PBDEs, which are used in upholstered furniture and electronics.
Credit: Arlene Blum

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 compared data on blood levels of PBDEs in California residents to blood levels in residents of other regions. They found that PBDE levels in California homes were four to 10 times higher than other U.S. areas. They also found that blood levels of some PBDEs were significantly higher in California residents than the rest of the country.

"These findings raise concern about pending regulations and performance standards that encourage the widespread use of chemical flame retardants, which are toxic or whose safety is uncharacterized," the article states.


Story Source:

The above story is based on materials provided by American Chemical Society. Note: Materials may be edited for content and length.


Journal Reference:

  1. Zota et al. Elevated House Dust and Serum Concentrations of PBDEs in California: Unintended Consequences of Furniture Flammability Standards? Environmental Science & Technology, 1967; 0 (0): 0 DOI: 10.1021/es801792z

Cite This Page:

American Chemical Society. "Potentially Toxic Flame Retardants Highest In California Households." ScienceDaily. ScienceDaily, 8 October 2008. <www.sciencedaily.com/releases/2008/10/081006170710.htm>.
American Chemical Society. (2008, October 8). Potentially Toxic Flame Retardants Highest In California Households. ScienceDaily. Retrieved April 23, 2014 from www.sciencedaily.com/releases/2008/10/081006170710.htm
American Chemical Society. "Potentially Toxic Flame Retardants Highest In California Households." ScienceDaily. www.sciencedaily.com/releases/2008/10/081006170710.htm (accessed April 23, 2014).

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