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

Available online: 15 Aug 2003 *

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