Short‐range urban dispersion experiments using fixed and moving sources

Four perfluorocarbon tracer dispersion experiments were carried out in central London, United Kingdom in 2004. These experiments were supplementary to the dispersion of air pollution and penetration into the local environment (DAPPLE) campaign and consisted of ground level releases, roof level relea...

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Bibliographic Details
Published in:Atmospheric science letters 2009-04, Vol.10 (2), p.59-65
Main Authors: Shallcross, D. E., Martin, D., Price, C. S., Nickless, G., White, I. R., Petersson, F., Britter, R. E., Neophytou, M. K., Tate, J. E., Tomlin, A. S., Belcher, S. E., Barlow, J. F., Robins, A.
Format: Article
Language:English
Subjects:
Air pollution
dapple
Dispersion
mobile source
Nonuniformity
perfluorocarbon
Perfluorocarbons
Soil contamination
tracer
Tracers
Traffic speed
Velocity
Wind observation
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Summary:Four perfluorocarbon tracer dispersion experiments were carried out in central London, United Kingdom in 2004. These experiments were supplementary to the dispersion of air pollution and penetration into the local environment (DAPPLE) campaign and consisted of ground level releases, roof level releases and mobile releases; the latter are believed to be the first such experiments to be undertaken. A detailed description of the experiments including release, sampling, analysis and wind observations is given. The characteristics of dispersion from the fixed and mobile sources are discussed and contrasted, in particular, the decay in concentration levels away from the source location and the additional variability that results from the non‐uniformity of vehicle speed. Copyright © 2009 Royal Meteorological Society
ISSN:1530-261X
1530-261X
DOI:10.1002/asl.211