Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/4785
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dc.contributorDepartment of Civil and Environmental Engineering-
dc.contributorDepartment of Mechanical Engineering-
dc.creatorLau, J-
dc.creatorHung, WT-
dc.creatorCheung, CS-
dc.date.accessioned2014-12-11T08:28:55Z-
dc.date.available2014-12-11T08:28:55Z-
dc.identifier.issn0269-7491-
dc.identifier.urihttp://hdl.handle.net/10397/4785-
dc.language.isoenen_US
dc.publisherPergamon Pressen_US
dc.rightsEnvironmental pollution © 2011 Elsevier B.V. All rights reserved. The journal web site is located at http://www.sciencedirect.com.en_US
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Environmental pollution. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Environmental pollution, vol. 163, (Apr 2012), p. 14-23, DOI: 10.1016/j.envpol.2011.12.021en_US
dc.subjectVehicle emissionen_US
dc.subjectRemote sensingen_US
dc.subjectGaseous emission factoren_US
dc.subjectModel yearen_US
dc.titleObservation of increases in emission from modern vehicles over time in Hong Kong using remote sensingen_US
dc.typeJournal/Magazine Articleen_US
dc.description.otherinformationAuthor name used in this manuscript: W. T. Hungen_US
dc.identifier.spage14-
dc.identifier.epage23-
dc.identifier.volume163-
dc.identifier.doi10.1016/j.envpol.2011.12.021-
dcterms.abstractIn this study on-road gaseous emissions of vehicles are investigated using remote sensing measurements collected over three different periods. The results show that a high percentage of gaseous pollutants were emitted from a small percentage of vehicles. Liquified Petroleum Gas (LPG) vehicles generally have higher gaseous emissions compared to other vehicles, particularly among higher-emitting vehicles.Vehicles with high vehicle specific power (VSP) tend to have lower CO and HC emissions while petrol and LPG vehicles tend to have higher NO emissions when engine load is high. It can be observed that gaseous emission factors of petrol and LPG vehicles increase greatly within 2 years of being introduced to the vehicle fleet, suggesting that engine and catalyst performance deteriorate rapidly. It can be observed that LPG vehicles have higher levels of gaseous emissions than petrol vehicles, suggesting that proper maintenance of LPG vehicles is essential in reducing gaseous emissions from vehicles.-
dcterms.accessRightsopen accessen_US
dcterms.bibliographicCitationEnvironmental pollution, Apr. 2012, v. 163, p.14-23-
dcterms.isPartOfEnvironmental pollution-
dcterms.issued2012-04-
dc.identifier.isiWOS:000301395400003-
dc.identifier.scopus2-s2.0-84855447557-
dc.identifier.pmid22325426-
dc.identifier.eissn1873-6424-
dc.identifier.rosgroupidr59178-
dc.description.ros2011-2012 > Academic research: refereed > Publication in refereed journal-
dc.description.oaAccepted Manuscripten_US
dc.identifier.FolderNumberOA_IR/PIRAen_US
dc.description.pubStatusPublisheden_US
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