eCite Digital Repository

Predictors of indoor BTEX concentrations in Canadian residences


Wheeler, AJ and Wong, SL and Khoury, C and Zhu, J, Predictors of indoor BTEX concentrations in Canadian residences, Health Reports, 24, (5) pp. 11-17. ISSN 0840-6529 (2013) [Refereed Article]


Copyright Statement

Copyright 2013 Minister of Industry Statistics Canada Open Licence Agreement -

Official URL:


Background: Benzene, toluene, ethylbenzene and m-, p-xylenesand o-xylene (BTEX) are a group of volatile organic compounds that originate from similar sources. Given the potentially negative health implications of BTEX exposure and their prevalence in residential indoor air, it is important to understand typical residential concentrations and identify predictors.

Data and methods: The 2009 to 2011 Canadian Health Measures Survey included an indoor air component. Questionnaires were administered, and respondents were asked to deploy an air sampler in their home for 7 consecutive days. This analysis is based on BTEX data from 5,191 respondents. Mean BTEX concentrations were examined overall, and by dwelling type and garage configuration. Stepwise regression models were used to examine potential sources of BTEX components.

Results: Means were 1.95 μg/m (benzene), 19.17 μg/m (toluene), 4.09 μg/m (ethylbenzene), 14.42 μg/m (m-, p-xylenes), and 4.16 μg/m (o-xylene). Significant predictors of the presence of BTEX included a garage on the property, regular smoking in the home, renovations in the past month, number of occupants, use of paint remover, and use of fragrance.

Interpretation: Results of this nationally representative study found that BTEX concentrations are relatively low among Canadian residences, and identified several different indoor sources.

Item Details

Item Type:Refereed Article
Keywords:benzene, indoor air quality, toluene, volatile organic compounds, xylenes
Research Division:Commerce, Management, Tourism and Services
Research Group:Human resources and industrial relations
Research Field:Occupational and workplace health and safety
Objective Division:Health
Objective Group:Public health (excl. specific population health)
Objective Field:Public health (excl. specific population health) not elsewhere classified
UTAS Author:Wheeler, AJ (Dr Amanda Wheeler)
ID Code:101133
Year Published:2013
Web of Science® Times Cited:32
Deposited By:Menzies Institute for Medical Research
Deposited On:2015-06-10
Last Modified:2017-11-03
Downloads:249 View Download Statistics

Repository Staff Only: item control page