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Citation
Tags
HERO ID
787630
Reference Type
Journal Article
Title
Personal exposure to HBCDs and its degradation products via ingestion of indoor dust
Author(s)
Abdallah, MA; Harrad, S
Year
2009
Is Peer Reviewed?
1
Journal
Environment International
ISSN:
0160-4120
EISSN:
1873-6750
Volume
35
Issue
6
Page Numbers
870-876
Language
English
PMID
19344952
DOI
10.1016/j.envint.2009.03.002
Web of Science Id
WOS:000267415500006
Abstract
Personal exposures via ingestion of indoor dust to alpha-, beta-, and gamma-hexabromocyclododecanes (HBCDs) and the degradation products (pentabromocyclododecenes (PBCDs) and tetrabromocyclododecadienes (TBCDs)) were estimated for 21 UK adults. Under an average dust ingestion scenario, personal exposures ranged from 4.5 to 1851 ng SigmaHBCDs day(-1); while the range under a high dust ingestion scenario was 11 to 4630 ng SigmaHBCDs day(-1). On average, personal exposure to SigmaHBCDs via dust ingestion in this study was 35% alpha-, 11% beta-, and 54% gamma-HBCD. However, while exposure to beta-HBCD (4-18% of SigmaHBCDs) was relatively consistent with the proportion of this diastereomer in the HBCD commercial formulation; exposures to alpha- and gamma-isomers (11-58% and 29-82% of SigmaHBCDs respectively) showed substantial variation from the commercial formulation pattern. Personal exposures to SigmaTBCDs (median=0.2 ng day(-1) under an average dust ingestion scenario) and SigmaPBCDs (1.4 ng day(-1)) were significantly lower (p<0.05) than for SigmaHBCDs (48 ng day(-1)). Despite this, the exposure of one participant to SigmaPBCDs exceeded the exposure to SigmaHBCDs received by 85% of the other participants. On average, house dust provided the major contribution to personal exposure via dust ingestion to all target compounds due to the large time fraction spent in houses. In contrast, although participants spent less time in cars than in offices, car dust makes a higher average contribution (17%) to SigmaHBCDs exposure than office dust (13%).
Keywords
HBCDs; Degradation products; Indoor dust; Personal exposure; LC/MS/MS
Tags
IRIS
•
Hexabromocyclododecane (HBCD)
Database Searches
Pubmed
WOS
Excluded/Not on Topic
NAAQS
•
ISA-PM (2019)
OPPT REs
•
OPPT_Cyclic Aliphatic Bromine Cluster (HBCD)_C. Engineering
Data screening total
Screening: Excluded
•
OPPT_Cyclic Aliphatic Bromine Cluster (HBCD)_D. Exposure
Total – title/abstract screening
On topic
Peer review
Primary source
Supplemental search
Supplemental other
•
OPPT_Cyclic Aliphatic Bromine Cluster (HBCD)_E. Fate
Total – title/abstract screening
Off topic
•
OPPT_Cyclic Aliphatic Bromine Cluster (HBCD)_F. Human Health
Total – title/abstract screening
Off topic
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