Citation

Brown FR, Whitehead TP, Park JS, Metayer C, Petreas MX. Environ. Res. 2014; 135C: 9-14.

Affiliation

Environmental Chemistry Laboratory, Department of Toxic Substances Control, 700 Heinz Avenue Suite 100, Berkeley, CA 94710, USA.

Copyright

(Copyright © 2014, Elsevier Publishing)

DOI

10.1016/j.envres.2014.08.022

PMID

25261858

Abstract

Eleven novel brominated flame retardants (NBFRs) were analyzed in dust samples from California homes as a part of the Northern California Childhood Leukemia Study (NCCLS) and from the living quarters of California fire stations as a part of the Firefighter Occupational Exposure (FOX) study using high resolution gas chromatography/mass spectrometry. The eleven NBFRs were α- and β-1,2-dibromo-4-(1,2-dibromoethyl)cyclohexane (α- and β-DBE-DBCH), 2-bromoallyl 2,3,6-tribromophenylether (BATE), pentabromotoluene (PBT), pentabromoethylbenzene (PBEB), 2,3-dibromopropyl 2,4,6-tribromophenyl ether (TBP-DBPE), hexabromobenzene (HBB), 2-ethylhexyl-2,3,4,5-tetrabromobenzoate (EH-TBB), 1,2-bis(2,4,6-tribromophenoxy) ethane (BTBPE), bis(2-ethylhexyl) tetrabromophthalate (BEH-TEBP), and decabromodiphenylethane (DBDPE). Six of the seven NBFRs that are produced in relatively small quantities (i.e., α-, β-DBE-DBCH, BATE, PBEB, PBT, TBP-DBPE) were measured close to or below the limit of quantitation (0.64ng/g) in both the NCCLS and FOX samples, and the seventh, HBB, was measured at median concentrations of 1.85ng/g and 9.40ng/g in the NCCLS and FOX samples, respectively. The remaining four NBFRs, EH-TBB, BEH-TEBP, BTBPE, and DBDPE, are produced in higher quantities, and were detected at median concentrations of 337ng/g, 186ng/g, 22.3ng/g, and 82.8ng/g, respectively in the NCCLS samples, and at median concentrations of 2687ng/g, 2076ng/g, 28.4ng/g, and 161ng/g, respectively, in the FOX samples. Concentrations of NBFRs in the NCCLS and FOX dust samples were several times lower than concentrations of PBDEs previously measured in the same samples. Concentrations of NBFRs in the NCCLS and FOX dust samples were generally comparable to concentrations of NBFRs in other studies of house dust from the US and Canada.

Language: en