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Modelling the fate of ultrafine particles from exhaust pipe to rural background: an analysis of time scales for dilution, coagulation and deposition

Ketzel, M and Berkowicz, R LU (2004) In Atmospheric Environment 38(17). p.2639-2652
Abstract
We investigate the time scales of various dynamic processes during the evolution of the particle size distribution from its emission from a vehicle exhaust pipe through its dilution at kerbside and urban level. In addition, the situation in a road tunnel or near a highway is discussed. The derived formula framework allows the estimation of approximated time scales based on a given particle size distribution for the processes dilution with background air, coagulation, deposition and condensation. The variation of the time scales for these processes with "lifetime" of the exhaust particles and the dependence of the time scales on the particle size is shown. We identify the spatial or temporal scales under which the discussed processes are... (More)
We investigate the time scales of various dynamic processes during the evolution of the particle size distribution from its emission from a vehicle exhaust pipe through its dilution at kerbside and urban level. In addition, the situation in a road tunnel or near a highway is discussed. The derived formula framework allows the estimation of approximated time scales based on a given particle size distribution for the processes dilution with background air, coagulation, deposition and condensation. The variation of the time scales for these processes with "lifetime" of the exhaust particles and the dependence of the time scales on the particle size is shown. We identify the spatial or temporal scales under which the discussed processes are important and have to be included in operational particle pollution models. (C) 2004 Elsevier Ltd. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
particle size distribution, aerosol modelling, nanoparticles, source, traffic
in
Atmospheric Environment
volume
38
issue
17
pages
2639 - 2652
publisher
Elsevier
external identifiers
  • wos:000221365200004
  • scopus:1942478276
ISSN
1352-2310
DOI
10.1016/j.atmosenv.2004.02.020
language
English
LU publication?
yes
id
7ae127b0-db1f-4d75-879e-3c7d3dd4b278 (old id 279146)
date added to LUP
2007-10-23 18:19:17
date last changed
2017-11-05 04:24:29
@article{7ae127b0-db1f-4d75-879e-3c7d3dd4b278,
  abstract     = {We investigate the time scales of various dynamic processes during the evolution of the particle size distribution from its emission from a vehicle exhaust pipe through its dilution at kerbside and urban level. In addition, the situation in a road tunnel or near a highway is discussed. The derived formula framework allows the estimation of approximated time scales based on a given particle size distribution for the processes dilution with background air, coagulation, deposition and condensation. The variation of the time scales for these processes with "lifetime" of the exhaust particles and the dependence of the time scales on the particle size is shown. We identify the spatial or temporal scales under which the discussed processes are important and have to be included in operational particle pollution models. (C) 2004 Elsevier Ltd. All rights reserved.},
  author       = {Ketzel, M and Berkowicz, R},
  issn         = {1352-2310},
  keyword      = {particle size distribution,aerosol modelling,nanoparticles,source,traffic},
  language     = {eng},
  number       = {17},
  pages        = {2639--2652},
  publisher    = {Elsevier},
  series       = {Atmospheric Environment},
  title        = {Modelling the fate of ultrafine particles from exhaust pipe to rural background: an analysis of time scales for dilution, coagulation and deposition},
  url          = {http://dx.doi.org/10.1016/j.atmosenv.2004.02.020},
  volume       = {38},
  year         = {2004},
}