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Indicators of residential traffic exposure: Modelled NOX, traffic proximity, and self-reported exposure in RHINE III
Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Occupational and Environmental Medicine. Univ Iceland, Engn & Nat Sci, Reykjavik, Iceland; Univ Gothenburg, Inst Med, Sect Occupat & Environm Med, Dept Publ Hlth & Community Med,Sahlgrenska Acad, Gothenburg, Sweden.
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2017 (English)In: Atmospheric Environment, ISSN 1352-2310, Vol. 167, p. 416-425Article in journal (Refereed) Published
Abstract [en]

Few studies have investigated associations between self-reported and modelled exposure to traffic pollution. The objective of this study was to examine correlations between self-reported traffic exposure and modelled (a) NOx and (b) traffic proximity in seven different northern European cities; Aarhus (Denmark), Bergen (Norway), Gothenburg, Ulna and Uppsala (Sweden), Reykjavik (Iceland), and Tartu (Estonia). We analysed data from the RHINE III (Respiratory Health in Northern Europe, www.rhine.nu) cohorts of the seven study cities. Traffic proximity (distance to the nearest road with >10,000 vehicles per day) was calculated and vehicle exhaust (NOx) was modelled using dispersion models and land-use regression (LUR) data from 2011. Participants were asked a question about self-reported traffic intensity near bedroom window and another about traffic noise exposure at the residence. The data were analysed using rank correlation (Kendall's tau) and inter-rater agreement (Cohen's Kappa) between tertiles of modelled NOx and traffic proximity tertile and traffic proximity categories (0-150 metres (m), 150 -200 m, >300 m) in each centre. Data on variables of interest were available for 50-99% of study participants per each cohort. Mean modelled NOx levels were between 6.5 and 16.0 mu g/m(3); median traffic intensity was between 303 and 10,750 m in each centre. In each centre, 7.7-18.7% of respondents reported exposure to high traffic intensity and 3.6-16.3% of respondents reported high exposure to traffic noise. Self-reported residential traffic exposure had low or no correlation with modelled exposure and traffic proximity in all centres, although results were statistically significant (tau = 0.057-0.305). Self reported residential traffic noise correlated weakly (tau = 0.090-0.255), with modelled exposure in all centres except Reykjavik. Modelled NOx\] had the highest correlations between self-reported and modelled traffic exposure in five of seven centres, traffic noise exposure had the highest correlation with traffic proximity in tertiles in three centres. Self-reported exposure to high traffic intensity and traffic noise at each participant's residence had low or weak although statistically significant correlations with modelled vehicle exhaust pollution levels and traffic proximity.

Place, publisher, year, edition, pages
2017. Vol. 167, p. 416-425
Keywords [en]
Traffic exposure, Noise exposure, Dispersion models, Land-use regression models, NOx, Cohort study
National Category
Occupational Health and Environmental Health
Identifiers
URN: urn:nbn:se:umu:diva-142482DOI: 10.1016/j.atmosenv.2017.08.015ISI: 000412612200036Scopus ID: 2-s2.0-85028350198OAI: oai:DiVA.org:umu-142482DiVA, id: diva2:1161623
Available from: 2017-11-30 Created: 2017-11-30 Last updated: 2018-06-09Bibliographically approved

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Carlsen, Hanne KrageModig, LarsForsberg, BertilOlsson, DavidOrru, Hans

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