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Associations Between Ambient PM2.5 Concentrations and Respiratory Symptoms in Melbourne, 1998-2005

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Bennett, C and Simpson, P and Raven, J and Skoric, B and Powell, J and Wolfe, RC and Walters, EH and Abramson, MJ (2007) Associations Between Ambient PM2.5 Concentrations and Respiratory Symptoms in Melbourne, 1998-2005. Journal of Toxicology and Environmental Health, Part A, 70 (19). pp. 1613-1618. ISSN 1528-7394

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Abstract

Particulate matter (PM) has been widely associated with adverse
effects on respiratory health, both overseas and in Australia. This
study aimed to investigate the impacts of ambient particles of <2.5
mm diameter (PM2.5) in Melbourne on adverse respiratory symptoms.
Two cohorts of adults were recruited in 1992–1998, and completed
detailed respiratory questionnaires in 1998–1999 and 2004–
2005. The mean age at baseline was 37.2 years, 55% were female,
and the mean time lapsed between the baseline and follow-up questionnaires
was 5.2 years. PM2.5 exposure was assessed from gravimetric
data and routine nephelometry at monitoring stations located
centrally with respect to the residence of most participants. Daily
exposures to PM2.5 were averaged over the previous 12 months and
mean daily exposure was 6.8 mg/m3. Logistic regression models were
used to examine associations between PM2.5 exposure and adverse
respiratory symptoms. Adjustment was made for age, gender, current
smoking status, and medication use, but further adjustment for
atopy did not alter the results. There was insufficient variability in
PM2.5 exposure among participants over the study period to provide
convincing evidence for or against associations between PM2.5 and
adverse respiratory symptoms.

Item Type: Article
Journal or Publication Title: Journal of Toxicology and Environmental Health, Part A
Page Range: pp. 1613-1618
ISSN: 1528-7394
Identification Number - DOI: 10.1080/15287390701434695
Additional Information:

The definitive version is available online at
http://www.informaworld.com/smpp/content?

Date Deposited: 02 Jul 2008 02:01
Last Modified: 18 Nov 2014 03:44
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