Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/111871
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dc.contributor.authorWang, Y.en
dc.contributor.authorZhou, Y.en
dc.contributor.authorZuo, J.en
dc.contributor.authorRameezdeen, R.en
dc.date.issued2018en
dc.identifier.citationInternational Journal of Environmental Research and Public Health, 2018; 15(3):482-1-482-30en
dc.identifier.issn1661-7827en
dc.identifier.issn1660-4601en
dc.identifier.urihttp://hdl.handle.net/2440/111871-
dc.description.abstractParticle emissions derived from construction activities have a significant impact on the local air quality, while the canyon effect with reduced natural ventilation contributes to the highest particulate pollution in urban environments. This study attempted to examine the effect of PM10 emissions derived from the construction of a rail transit system in an urban street canyon. Using a 3D computational fluid dynamic (CFD) model based on a real street canyon with different height ratios, this study formulates the impact of height ratio and wind directions on the dispersion and concentration of PM10. The results indicate that parallel flow would cause the concentration of PM10 at the end of the street canyons in all height ratios, and the trends in horizontal, vertical and lateral planes in all street canyons are similar. While in the condition of perpendicular flow, double-eddy circulations occur and lead to the concentration of PM10 in the middle part of the street canyon and leeward of backwind buildings in all height ratios. Furthermore, perpendicular flow will cause the concentration of PM10 to increase if the upwind buildings are higher than the backwind ones. This study also shows that the dispersion of PM10 is strongly associated with wind direction in and the height ratios of the street canyons. Certain measures could, therefore, be taken to prevent the impact on people in terms of the PM10 concentration and the heights of street canyons identified in this research. Potential mitigation strategies are suggested, include measurements below 4 m according to governmental regulations, dust shields, and atomized water.en
dc.description.statementofresponsibilityYang Wang, Ying Zhou, Jian Zuo and Raufdeen Rameezdeenen
dc.language.isoenen
dc.publisherMDPIen
dc.rightsThis is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).en
dc.subjectPM10; computational fluid dynamic (CFD); construction activity; height ratio; urban street canyon; wind directionen
dc.titleA computational fluid dynamic (CFD) simulation of PM₁₀ dispersion caused by rail transit construction activity: a real urban street canyon modelen
dc.title.alternativeA computational fluid dynamic (CFD) simulation of PM(10) dispersion caused by rail transit construction activity: a real urban street canyon modelen
dc.typeJournal articleen
dc.identifier.rmid0030083669en
dc.identifier.doi10.3390/ijerph15030482en
dc.identifier.pubid399821-
pubs.library.collectionArchitecture publicationsen
pubs.library.teamDS10en
pubs.verification-statusVerifieden
pubs.publication-statusPublisheden
dc.identifier.orcidZuo, J. [0000-0002-8279-9666]en
Appears in Collections:Architecture publications

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