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Exposure of chronic obstructive pulmonary disease patients to particulate matter: relationships between personal and ambient air concentrations.

Content Provider	Scilit
Author	Ebelt, Stefanie T. Petkau, A. John Vedal, Sverre Fisher, Teri V. Brauer, Michael
Copyright Year	2000
Description	Most time-series studies of particulate air pollution and acute health outcomes assess exposure of the study population using fixed-site outdoor measurements. To address the issue of exposure misclassification, we evaluate the relationship between ambient particle concentrations and personal exposures of a population expected to be at risk of particle health effects. Sampling was conducted within the Vancouver metropolitan area during April-September 1998. Sixteen subjects (non-smoking, ages 54-86) with physician-diagnosed chronic obstructive pulmonary disease (COPD) wore personal $PM_{2 5}$ monitors for seven 24-hr periods, randomly spaced approximately 1.5 weeks apart. Time-activity logs and dwelling characteristics data were also obtained for each subject. Daily 24-hr ambient $PM_{10}$ and $PM_{2.5}$ concentrations were measured at five fixed sites spaced throughout the study region. $SO_{4} ^{2-}$, which is found almost exclusively in the fine particle fraction and which does not have major indoor sources, was measured in all $PM_{2 5}$ samples as an indicator of accumulation mode particu-late matter of ambient origin.
Related Links	http://www.tandfonline.com/doi/pdf/10.1080/10473289.2000.10464166?needAccess=true
Ending Page	1094
Page Count	14
Starting Page	1081
ISSN	10962247
e-ISSN	21622906
DOI	10.1080/10473289.2000.10464166
Journal	Journal of the Air & Waste Management Association
Issue Number	7
Volume Number	50
Language	English
Publisher	Informa UK Limited
Publisher Date	2000-07-01
Access Restriction	Open
Subject Keyword	Journal: Journal of the Air & Waste Management Association Public, Environmental and Occupational Health Accumulation Mode Time Activity Ambient Measurements Personal Pm2.5 Dwelling Characteristics Mode Particulate Ambient Origin Using So4
Content Type	Text
Resource Type	Article
Subject	Atmospheric Science Pollution Waste Management and Disposal Management, Monitoring, Policy and Law

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