Application of a three-layer photochemical box model in an Athens street canyon

Proyou, AG; Ziomas, IC; Stathopoulos, A

dc.contributor.author	Proyou, AG	en
dc.contributor.author	Ziomas, IC	en
dc.contributor.author	Stathopoulos, A	en
dc.date.accessioned	2014-03-01T01:13:35Z
dc.date.available	2014-03-01T01:13:35Z
dc.date.issued	1998	en
dc.identifier.issn	1047-3289	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/12587
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-0032080455&partnerID=40&md5=8aec5ed24fea80bb1b330049372ba994	en
dc.subject.classification	Engineering, Environmental	en
dc.subject.classification	Environmental Sciences	en
dc.subject.classification	Meteorology & Atmospheric Sciences	en
dc.subject.other	Computational methods	en
dc.subject.other	Exhaust gases	en
dc.subject.other	Gas emissions	en
dc.subject.other	Mathematical models	en
dc.subject.other	Meteorology	en
dc.subject.other	Photochemical reactions	en
dc.subject.other	Three layer photochemical box model	en
dc.subject.other	Air pollution	en
dc.subject.other	air monitoring	en
dc.subject.other	air pollution	en
dc.subject.other	air quality	en
dc.subject.other	article	en
dc.subject.other	exhaust gas	en
dc.subject.other	greece	en
dc.subject.other	priority journal	en
dc.subject.other	urban area	en
dc.title	Application of a three-layer photochemical box model in an Athens street canyon	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	1998	en
heal.abstract	The aim of this paper is to show that a photochemical box model could describe the air pollution diurnal profiles within a typical street canyon in the city of Athens. As sophisticated three-dimensional dispersion models are computationally expensive and they cannot serve to simulate pollution levels in the scale of an urban street canyon, a suitably modified three-layer photochemical box model was applied. A street canyon of Athens with heavy traffic was chosen to apply the aforementioned model. The model was used to calculate pollutant concentrations during two days with meteorological conditions favoring pollutant accumulation. Road traffic emissions were calculated based on existing traffic load measurements. Meteorological data, as well as various pollutant concentrations, in order to compare with the model results, were provided by available measurements. The calculated concentrations were found to be in good agreement with measured concentration levels and show that, when traffic load and traffic composition data are available, this model can be used to predict pollution episodes. It is noteworthy that high concentrations persisted, even after additional traffic restriction measures were taken on the second day because of the high pollution levels.The aim of this paper is to show that a photochemical box model could describe the air pollution diurnal profiles within a typical street canyon in the city of Athens. As sophisticated three-dimensional dispersion models are computationally expensive and they cannot serve to simulate pollution levels in the scale of an urban street canyon, a suitably modified three-layer photochemical box model was applied. A street canyon of Athens with heavy traffic was chosen to apply the aforementioned model. The model was used to calculate pollutant concentrations during two days with meteorological conditions favoring pollutant accumulation. Road traffic emissions were calculated based on existing traffic load measurements. Meteorological data, as well as various pollutant concentrations, in order to compare with the model results, were provided by available measurements. The calculated concentrations were found to be in good agreement with measured concentration levels and show that, when traffic load and traffic composition data are available, this model can be used to predict pollution episodes. It is noteworthy that high concentrations persisted, even after additional traffic restriction measures were taken on the second day because of the high pollution levels.	en
heal.publisher	Air & Waste Management Assoc, Pittsburgh, PA, United States	en
heal.journalName	Journal of the Air and Waste Management Association	en
dc.identifier.isi	ISI:000073670200005	en
dc.identifier.volume	48	en
dc.identifier.issue	5	en
dc.identifier.spage	427	en
dc.identifier.epage	433	en