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Indoor and Outdoor Levels and Sources of Submicron Particles (PM1) at Homes in Edmonton, Canada
Citation
Bari, MA and Kindzierski, WB and Wallace, LA and Wheeler, AJ and MacNeill, M and Heroux, M-E, Indoor and Outdoor Levels and Sources of Submicron Particles (PM1) at Homes in Edmonton, Canada, Environmental Science and Technology (Washington), 49, (11) pp. 6419-6429. ISSN 0013-936X (2015) [Refereed Article]
Copyright Statement
Copyright 2015 American Chemical Society
DOI: doi:10.1021/acs.est.5b01173
Abstract
Exposure to submicron particles (PM1) is of interest due to their possible chronic and acute health effects. Seven consecutive 24-h PM1 samples were collected during winter and summer 2010 in a total of 74 nonsmoking homes in Edmonton, Canada. Median winter concentrations of PM1 were 2.2 μg/m(3) (interquartile range, IQR = 0.8-6.1 μg/m(3)) and 3.3 μg/m(3) (IQR = 1.5-6.9 μg/m(3)) for indoors and outdoors, respectively. In the summer, indoor (median 4.4 μg/m(3), IQR = 2.4-8.6 μg/m(3)) and outdoor (median 4.3 μg/m(3), IQR = 2.6-7.4 μg/m(3)) levels were similar. Positive matrix factorization (PMF) was applied to identify and apportion indoor and outdoor sources of elements in PM1 mass. Nine sources contributing to both indoor and outdoor PM1 concentrations were identified including secondary sulfate, soil, biomass smoke and environmental tobacco smoke (ETS), traffic, settled and mixed dust, coal combustion, road salt/road dust, and urban mixture. Three additional indoor sources were identified i.e., carpet dust, copper-rich, and silver-rich. Secondary sulfate, soil, biomass smoke and ETS contributed more than 70% (indoors: 0.29 μg/m(3), outdoors: 0.39 μg/m(3)) of measured elemental mass in PM1. These findings can aid understanding of relationships between submicron particles and health outcomes for indoor/outdoor sources.
Item Details
Item Type: | Refereed Article |
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Keywords: | indoor air quality, sources, particulate matter |
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: | 101149 |
Year Published: | 2015 |
Web of Science® Times Cited: | 35 |
Deposited By: | Menzies Institute for Medical Research |
Deposited On: | 2015-06-10 |
Last Modified: | 2017-11-04 |
Downloads: | 0 |
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