Title: Contribution of road traffic to ambient fine particle concentrations (PM₁₀) in Switzerland

Authors: Robert Gehrig, Christoph Hueglin, Wim Devos, Peter Hofer, Judith Kobler, Werner A. Stahel, Urs Baltensperger, Christian Monn

Addresses: Swiss Federal Laboratories for Materials Testing and Research (EMPA), CH-8600 Dubendorf, Switzerland. Swiss Federal Laboratories for Materials Testing and Research (EMPA), CH-8600 Dubendorf, Switzerland. Swiss Federal Laboratories for Materials Testing and Research (EMPA), CH-8600 Dubendorf, Switzerland. Swiss Federal Laboratories for Materials Testing and Research (EMPA), CH-8600 Dubendorf, Switzerland. Swiss Federal Laboratories for Materials Testing and Research (EMPA), CH-8600 Dubendorf, Switzerland. Seminar for Statistics, ETH Zurich, CH-8092 Zurich, Switzerland. Paul Scherrer Institute, CH-5232 Villigen PSI, Switzerland. Institute for Hygiene and Applied Physiology, ETH Zurich, CH-8092 Zurich, Switzerland

Abstract: A multivariate receptor model was applied to estimate the contribution of road traffic to ambient levels of fine particles (PM₁₀) at different locations in Switzerland. At two roadside sites with heavy local traffic, the road traffic was found to account for 46% and 64% of PM₁₀. At an urban background site, the estimated average road traffic contribution was 34%, whereas a slightly higher value was obtained at a suburban site (36%). These results are in agreement with the findings of a recent study, where a conceptually different approach (dispersion modelling) was applied.

Keywords: PM₁₀; source apportionment; receptor model.

DOI: 10.1504/IJVD.2001.001951

International Journal of Vehicle Design, 2001 Vol.27 No.1/2/3/4, pp.56-64

Published online: 15 Aug 2003 *

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