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Review on urban vegetation and particle air pollution - Deposition and dispersion

Atmospheric environment (1994), 2015-03, Vol.105, p.130 [Peer Reviewed Journal]

ISSN: 1352-2310 ;ISSN: 1873-2844 ;EISSN: 1873-2844 ;DOI: 10.1016/j.atmosenv.2015.01.052

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Title:
Review on urban vegetation and particle air pollution - Deposition and dispersion
Author: Janhäll, Sara
Subjects: 15 Road: Environment ; air pollutant ; Air pollution ; Air quality ; Air quality improvement ; airborne particle ; atmospheric deposition ; atmospheric dispersion ; Atmospheric movements ; atmospheric pollution ; biofiltration ; Deposit (natural) ; Deposition ; Deposition surface ; Different particle sizes ; Dispersion ; Dispersion (waves) ; Distribution (gen) ; ecosystem ; ecosystem service ; Ecosystem services ; Ecosystems ; experimental study ; filtration ; human ; Impact study (environment) ; literature review ; Local air pollutions ; nature-society relations ; Particle size ; Particulate matter ; pollutant transport ; Pollution concentration ; Pollution deposition ; priority journal ; Review ; surface property ; Urban ; Urban area ; Urban growth ; Urban street canyon ; Vegetation ; vegetation dynamics ; wind ; wind tunnel
Is Part Of: Atmospheric environment (1994), 2015-03, Vol.105, p.130
Description: 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. © 2015 The Author.
Language: English
Identifier: ISSN: 1352-2310
ISSN: 1873-2844
EISSN: 1873-2844
DOI: 10.1016/j.atmosenv.2015.01.052
Source: SWEPUB Freely available online

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Review on urban vegetation and particle air pollution - Deposition and dispersion

ISSN: 1352-2310 ;ISSN: 1873-2844 ;EISSN: 1873-2844 ;DOI: 10.1016/j.atmosenv.2015.01.052

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