Non-PBDE halogenated flame retardants in Canadian indoor house dust: sampling, analysis, and occurrence

Environmental Science and Pollution Research International
Xinghua FanFang Wu

Abstract

An analytical method was developed for the measurement of 18 novel halogenated flame retardants in house dust. Sample preparation was based on ultrasound-assisted solvent extraction and clean up with solid phase extraction (SPE). Sample extracts were analyzed by gas chromatography-mass spectrometry (GC/MS) operated in electron capture negative ion (ECNI) chemical ionization mode. Baseline data from 351 fresh (active) dust samples collected under the Canadian House Dust Study (CHDS) revealed that five out of 18 target chemicals were present with detection frequencies higher than 90 %. Median (range) concentrations for these five compounds were as follows: 104 (<1.5-13,000) ng/g for 2-ethylhexyl-2,3,4,5-tetrabromobenzoate (EHTBB), 8.5 (<1.7-2390) ng/g for 1,2-bis(2,4,6-tribromophenoxy)ethane (BTBPE), 10.2 (<1.7-430) ng/g for hexabromobenzene (HBB), 2.9 (<1.2-1410) ng/g for syn-dechlorane plus (syn-DP) and 5.6 (<1.9-1570) ng/g for anti-dechlorane plus (anti-DP). A comparison of two sampling methods in a subset of 40 homes showed significant positive correlations between samples of "active" dust and samples taken directly from the household vacuum cleaner for all target compounds having median values above their corresponding metho...Continue Reading

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Citations

Mar 18, 2017·Indoor Air·P E RasmussenH D Gardner
Apr 14, 2017·Environmental Science & Technology·Robin E DodsonJoseph G Allen
May 31, 2017·Environmental Health Perspectives·Cynthia G GoodyerJonathan Chevrier
Jan 19, 2019·Environmental Science and Pollution Research International·Hongtao ShangPat E Rasmussen
May 28, 2019·International Journal of Toxicology·Michael G WadeAlison C Holloway
May 3, 2018·International Journal of Obesity : Journal of the International Association for the Study of Obesity·Vian PeshdaryElla Atlas
Jun 28, 2018·Environmental Science and Pollution Research International·Jianqiang SunAnping Zhang

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