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Article: Intake fraction of nonreactive motor vehicle exhaust in Hong Kong

TitleIntake fraction of nonreactive motor vehicle exhaust in Hong Kong
Authors
KeywordsCarbon monoxide
Exposure
Intake fraction
Regional pollutant transport
Vehicle emission
Issue Date2010
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/atmosenv
Citation
Atmospheric Environment, 2010, v. 44 n. 15, p. 1913-1918 How to Cite?
Abstract
The intake fraction (iF) of nonreactive constituents of exhaust from mobile vehicles in the urban area of Hong Kong is investigated using available monitoring data for carbon monoxide (CO) as a tracer of opportunity. Correcting for regional transport of carbon monoxide into Hong Kong, the annual-average iF for nonreactive motor vehicle emissions within the city is estimated to be around 270 per million. This estimated iF is much higher than values previously reported for vehicle emissions in US urban areas, Helsinki and Beijing, and somewhat lower than those reported for a densely populated street canyon in downtown Manhattan, New York City, or for emissions into indoor environments. The reported differences in intake fractions in various cities mainly result from the differences in local population densities. Our analysis highlights the importance of accounting for the influence of upwind transport of pollutants when using ambient data to estimate iF for an urban area. For vehicle exhaust in Hong Kong, it is found that the in/near vehicle microenvironment contributes similarly to the indoor home environment when accounting for the overall iF for children and adults. © 2010 Elsevier Ltd.
Persistent Identifierhttp://hdl.handle.net/10722/124853
ISSN
2013 Impact Factor: 3.062
2013 SCImago Journal Rankings: 1.776
ISI Accession Number ID
Funding AgencyGrant Number
Research Grants Council of Hong Kong Special Administrative Region, ChinaHKU 7145/07E
CIBSE HK Branch
Funding Information:

The work described was supported by the Research Grants Council of Hong Kong Special Administrative Region, China (Project No. HKU 7145/07E) and a CIBSE HK Branch grant. We thank Hong Kong Environmental Protection Department and Hong Kong Observatory for provision of the air pollution and weather data sets. We also thank an anonymous reviewer for his/her valuable comments and suggestions to improve the paper.

References

 

Author Affiliations
  1. The University of Hong Kong
  2. UC Berkeley
DC FieldValueLanguage
dc.contributor.authorLuo, Zen_HK
dc.contributor.authorLi, Yen_HK
dc.contributor.authorNazaroff, WWen_HK
dc.date.accessioned2010-10-31T10:57:49Z-
dc.date.available2010-10-31T10:57:49Z-
dc.date.issued2010en_HK
dc.identifier.citationAtmospheric Environment, 2010, v. 44 n. 15, p. 1913-1918en_HK
dc.identifier.issn1352-2310en_HK
dc.identifier.urihttp://hdl.handle.net/10722/124853-
dc.description.abstractThe intake fraction (iF) of nonreactive constituents of exhaust from mobile vehicles in the urban area of Hong Kong is investigated using available monitoring data for carbon monoxide (CO) as a tracer of opportunity. Correcting for regional transport of carbon monoxide into Hong Kong, the annual-average iF for nonreactive motor vehicle emissions within the city is estimated to be around 270 per million. This estimated iF is much higher than values previously reported for vehicle emissions in US urban areas, Helsinki and Beijing, and somewhat lower than those reported for a densely populated street canyon in downtown Manhattan, New York City, or for emissions into indoor environments. The reported differences in intake fractions in various cities mainly result from the differences in local population densities. Our analysis highlights the importance of accounting for the influence of upwind transport of pollutants when using ambient data to estimate iF for an urban area. For vehicle exhaust in Hong Kong, it is found that the in/near vehicle microenvironment contributes similarly to the indoor home environment when accounting for the overall iF for children and adults. © 2010 Elsevier Ltd.en_HK
dc.languageengen_HK
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/atmosenven_HK
dc.relation.ispartofAtmospheric Environmenten_HK
dc.subjectCarbon monoxideen_HK
dc.subjectExposureen_HK
dc.subjectIntake fractionen_HK
dc.subjectRegional pollutant transporten_HK
dc.subjectVehicle emissionen_HK
dc.titleIntake fraction of nonreactive motor vehicle exhaust in Hong Kongen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1352-2310&volume=44&issue=15&spage=1913&epage=1918&date=2010&atitle=Intake+fraction+of+nonreactive+motor+vehicle+exhaust+in+Hong+Kongen_HK
dc.identifier.emailLi, Y:liyg@hkucc.hku.hken_HK
dc.identifier.authorityLi, Y=rp00151en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.atmosenv.2010.02.016en_HK
dc.identifier.scopuseid_2-s2.0-77950948405en_HK
dc.identifier.hkuros180422en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-77950948405&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume44en_HK
dc.identifier.issue15en_HK
dc.identifier.spage1913en_HK
dc.identifier.epage1918en_HK
dc.identifier.eissn1873-2844-
dc.identifier.isiWOS:000277539700010-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridLuo, Z=35746716000en_HK
dc.identifier.scopusauthoridLi, Y=7502094052en_HK
dc.identifier.scopusauthoridNazaroff, WW=7006235747en_HK
dc.identifier.citeulike6709568-

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