Concentrations of brominated flame retardants in dust from United Kingdom cars, homes, and offices: causes of variability and implications for human exposure

Harrad, S; Ibarra, C; Abdallah, MAE; Boon, R; Neels, H; Covaci, A

HERO ID

1005148

Reference Type

Journal Article

Year

2008

Language

English

PMID

18558431

HERO ID 1005148
In Press No
Year 2008
Title Concentrations of brominated flame retardants in dust from United Kingdom cars, homes, and offices: causes of variability and implications for human exposure
Authors Harrad, S; Ibarra, C; Abdallah, MAE; Boon, R; Neels, H; Covaci, A
Journal Environment International
Volume 34
Issue 8
Page Numbers 1170-1175
Abstract Average concentrations of polybrominated diphenyl ethers (PBDEs) in dust in 30 homes, 18 offices, and 20 cars were 260,000, 31,000, and 340,000 ng SigmaPBDEs g(-1) respectively. Concentrations of BDEs 47, 99, 100, and 154 in cars exceeded significantly (p<0.05) those in homes and offices. Average concentrations of 1,2-bis(2,4,6-tribromophenoxy)ethane (TBE) and decabromodiphenyl ethane (DBDPE) in homes, offices, and cars respectively were lower at 120, 7.2, and 7.7 ng g(-1) (TBE) and 270, 170, and 400 ng g(-1) (DBDPE). BDE-209 concentrations in three samples are the highest to date at 2,600,000 (car), 2,200,000 (home), and 1,400,000 ng g(-1) (home). UK toddlers daily consuming 200 mg dust contaminated at the 95th percentile concentration, ingest 180 ng (Sigma)tri-hexa-BDEs and 310 microg BDE-209 day(-1). For TBE, exposure was lower than for PBDEs and hexabromocyclododecanes (HBCDs), while that for DBDPE was similar in magnitude to (Sigma)tri-hexa-BDEs, but less than for BDE-209 and HBCDs. BDE-209 concentrations recorded in ten samples taken at monthly intervals in one room varied 400-fold, implying caution when using single measurements of dust contamination for exposure assessment. Significant negative correlation was observed in one room between concentrations of BDE-47, 99, and 153 and dust loading (g dust m(-2) floor), suggesting "dilution" occurs at higher dust loadings.
Doi 10.1016/j.envint.2008.05.001
Pmid 18558431
Wosid WOS:000260368500012
Is Certified Translation No
Dupe Override No
Is Public Yes
Language Text English
Keyword Brominated flame retardants; Indoor dust; Human exposure; spatial variability; Temporalvariability; PDBEs; Decabromodiphenyl ethane; 1,2-bis(2,4,6-tribromophenoxy)ethane
Is Peer Review Yes
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