Assessment of long-term exposure to air pollution in a longitudinal national health survey

Guay, M; Stieb, DM; Smith-Doiron, M

HERO ID

758861

Reference Type

Journal Article

Year

2011

Language

English

PMID

20606704

HERO ID 758861
In Press No
Year 2011
Title Assessment of long-term exposure to air pollution in a longitudinal national health survey
Authors Guay, M; Stieb, DM; Smith-Doiron, M
Journal Journal of Exposure Science & Environmental Epidemiology
Volume 21
Issue 4
Page Numbers 337-342
Abstract Self-reported data on the municipality of residence were used to assess long-term exposure to outdoor air pollution from 1980 to 2002 in the longitudinal Canadian National Population Health Survey. Exposure to carbon monoxide, nitrogen dioxide, ozone, sulfur dioxide, and particulate matter was determined using data obtained from fixed-site air pollution monitors operated principally in urban areas. Four different methods of attributing pollution exposure were used based on residence in (1) 1980, (2) 1994, (3) 1980 and 1994, and (4) at all locations between 1980 and 2002. Between 1,693 and 4,274 of 10,515 members of the cohort could be assigned exposures to individual pollutants using these methods. On average, subjects spent 71.4% of the 1980-2002 period in the census subdivision where they lived in 1980. A single exposure measure in 1980 or 1994 or a mean of the two measures was highly correlated (r>0.7, P<0.0001) with a measure which accounted for all moves between 1980 and 2002. Although our ability to characterize long-term exposure was constrained by a lack of data from fixed-site monitors, the low frequency of moves meant that measures based on a single year generally provided a good approximation of long-term exposure at the census subdivision level.
Doi 10.1038/jes.2010.37
Pmid 20606704
Wosid WOS:000291858700001
Is Certified Translation No
Dupe Override No
Comments Source: Web of Science WOS:000291858700001
Is Public Yes
Language Text English
Keyword air pollution; long-term exposure; epidemiology
Is Qa No