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Review on urban vegetation and particle air pollution: Deposition and dispersion
Swedish National Road and Transport Research Institute, Society, environment and transport, Environment.ORCID iD: 0000-0002-2679-2611
2015 (English)In: Atmospheric Environment, ISSN 1352-2310, E-ISSN 1873-2844, Vol. 105, 130-137 p.Article in journal (Refereed) Published
Abstract [en]

Urban vegetation affects air quality through influencing pollutant deposition and dispersion. Both processes are described by many existing models and experiments, on-site and in wind tunnels, focussing e.g. on urban street canyons and crossings or vegetation barriers adjacent to traffic sources. There is an urgent need for well-structured experimental data, including detailed empirical descriptions of parameters that are not the explicit focus of the study.

This review revealed that design and choice of urban vegetation is crucial when using vegetation as an ecosystem service for air quality improvements. The reduced mixing in trafficked street canyons on adding large trees increases local air pollution levels, while low vegetation close to sources can improve air quality by increasing deposition. Filtration vegetation barriers have to be dense enough to offer large deposition surface area and porous enough to allow penetration, instead of deflection of the air stream above the barrier. The choice between tall or short and dense or sparse vegetation determines the effect on air pollution from different sources and different particle sizes.

Place, publisher, year, edition, pages
Elsevier, 2015. Vol. 105, 130-137 p.
Keyword [en]
Vegetation, Air pollution, Particulate matter, Impact study (environment), Pollution concentration, Deposit (natural), Distribution (gen), Urban area
National Category
Environmental Sciences
Research subject
10 Road: Transport, society, policy and planning, 15 Road: Environment
Identifiers
URN: urn:nbn:se:vti:diva-7787DOI: 10.1016/j.atmosenv.2015.01.052ScopusID: 2-s2.0-84921742877OAI: oai:DiVA.org:vti-7787DiVA: diva2:794669
Funder
Swedish Research Council FormasSwedish Environmental Protection AgencySwedish Energy Agency
Available from: 2015-03-12 Created: 2015-03-12 Last updated: 2016-02-02Bibliographically approved

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf