Aerosol emission in a road tunnel
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Author (Corporation)
Publication date
02.1997
Typ of student thesis
Course of study
Collections
Type
01A - Journal article
Editors
Editor (Corporation)
Supervisor
Parent work
Atmospheric Environment
Special issue
DOI of the original publication
Link
Series
Series number
Volume
31
Issue / Number
3
Pages / Duration
451-462
Patent number
Publisher / Publishing institution
Elsevier
Place of publication / Event location
Amsterdam
Edition
Version
Programming language
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Practice partner / Client
Abstract
Continuous measurements of aerosol emissions were performed within the scope of emission measurements in the Gubrist tunnel, a 3250 m long freeway tunnel near Zürich, Switzerland, from 20 September to 26 September 1993. The particles in the respirable size range (d < 3 μm) were found to be mainly tail pipe emissions with very small amount of tire wear and road dust. The calculated PM3 emission factor for diesel engines was about 310 mg/km, where the main part (63%) of the diesel vehicles were heavy-duty vehicles. Thirty-one percent of the PM3 emissions from diesel vehicles were black carbon and 0.86% particle bound PAR Due to the high fraction emitted by diesel engines the contribution of gasoline engines could not be evaluated by the statistical model. During their residence time in the tunnel the particles undergo significant changes, resulting in a more compact structure. It is concluded that this is mainly due to adsorption of volatile material from the gas phase to the particle surface.
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ISBN
ISSN
1352-2310
0004-6981
0004-6981
Language
English
Created during FHNW affiliation
No
Strategic action fields FHNW
Publication status
Published
Review
Peer review of the complete publication
Open access category
Closed
License
Citation
Weingartner, E., Keller, C., Stahel, W., Burtscher, H., & Baltensperger, U. (1997). Aerosol emission in a road tunnel. Atmospheric Environment, 31(3), 451–462. https://doi.org/10.1016/s1352-2310(96)00193-8