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Article: A cohort study of traffic-related air pollution and mortality in Toronto, Ontario, Canada.(Research)(Report)
- Article from:
- Environmental Health Perspectives
- Article date:
- May 1, 2009
- Author:
CopyrightCOPYRIGHT 2009 National Institute of Environmental Health Sciences. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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BACKGROUND: Chronic exposure to traffic-related air pollution (TRAP) may contribute to premature mortality, but few studies to date have addressed this topic.
OBJECTIVES: In this study we assessed the association between TRAP and mortality in Toronto, Ontario, Canada.
METHODS: We collected nitrogen dioxide samples over two seasons using duplicate two-sided Ogawa passive diffusion samplers at 143 locations across Toronto. We calibrated land use regressions to predict [NO.sub.2] exposure on a fine scale within Toronto. We used interpolations to predict levels of particulate matter with aerodynamic diameter [less than or equal to]2.5 um ([PM.sub.2.5]) and ...