Predicting personal exposure to airborne carbonyls using residential measurements and time/activity data

As a part of the Relationships of Indoor, Outdoor, and Personal Air (RIOPA) study, 48 h integrated residential indoor, outdoor, and personal exposure concentrations of 10 carbonyls were simultaneously measured in 234 homes selected from three US cities using the Passive Aldehydes and Ketones Sampler...

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Bibliographic Details
Published in:Atmospheric environment (1994) 2007-08, Vol.41 (25), p.5280-5288
Main Authors: Liu, Weili, Zhang, Junfeng (Jim), Korn, Leo R., Zhang, Lin, Weisel, Clifford P., Turpin, Barbara, Morandi, Maria, Stock, Tom, Colome, Steve
Format: Article
Language:English
Subjects:
Air toxics
Air. Soil. Water. Waste. Feeding
Aldehydes
Biological and medical sciences
Carbonyls
Environment. Living conditions
Indoor concentration
Medical sciences
Personal exposure
Public health. Hygiene
Public health. Hygiene-occupational medicine
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Summary:As a part of the Relationships of Indoor, Outdoor, and Personal Air (RIOPA) study, 48 h integrated residential indoor, outdoor, and personal exposure concentrations of 10 carbonyls were simultaneously measured in 234 homes selected from three US cities using the Passive Aldehydes and Ketones Samplers (PAKS). In this paper, we examine the feasibility of using residential indoor concentrations to predict personal exposures to carbonyls. Based on paired t-tests, the means of indoor concentrations were not different from those of personal exposure concentrations for eight out of the 10 measured carbonyls, indicating indoor carbonyls concentrations, in general, well predicted the central tendency of personal exposure concentrations. In a linear regression model, indoor concentrations explained 47%, 55%, and 65% of personal exposure variance for formaldehyde, acetaldehyde, and hexaldehyde, respectively. The predictability of indoor concentrations on cross-individual variability in personal exposure for the other carbonyls was poorer, explaining
ISSN:1352-2310
1873-2844
DOI:10.1016/j.atmosenv.2006.05.089