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Article: Intake fraction of nonreactive motor vehicle exhaust in Hong Kong
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TitleIntake fraction of nonreactive motor vehicle exhaust in Hong Kong
 
AuthorsLuo, Z1
Li, Y1
Nazaroff, WW2
 
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
 
CitationAtmospheric Environment, 2010, v. 44 n. 15, p. 1913-1918 [How to Cite?]
DOI: http://dx.doi.org/10.1016/j.atmosenv.2010.02.016
 
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.
 
ISSN1352-2310
2013 Impact Factor: 3.062
2013 SCImago Journal Rankings: 1.776
 
DOIhttp://dx.doi.org/10.1016/j.atmosenv.2010.02.016
 
ISI Accession Number IDWOS:000277539700010
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.

 
ReferencesReferences in Scopus
 
DC FieldValue
dc.contributor.authorLuo, Z
 
dc.contributor.authorLi, Y
 
dc.contributor.authorNazaroff, WW
 
dc.date.accessioned2010-10-31T10:57:49Z
 
dc.date.available2010-10-31T10:57:49Z
 
dc.date.issued2010
 
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.
 
dc.description.natureLink_to_subscribed_fulltext
 
dc.identifier.citationAtmospheric Environment, 2010, v. 44 n. 15, p. 1913-1918 [How to Cite?]
DOI: http://dx.doi.org/10.1016/j.atmosenv.2010.02.016
 
dc.identifier.citeulike6709568
 
dc.identifier.doihttp://dx.doi.org/10.1016/j.atmosenv.2010.02.016
 
dc.identifier.eissn1873-2844
 
dc.identifier.epage1918
 
dc.identifier.hkuros180422
 
dc.identifier.isiWOS:000277539700010
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.

 
dc.identifier.issn1352-2310
2013 Impact Factor: 3.062
2013 SCImago Journal Rankings: 1.776
 
dc.identifier.issue15
 
dc.identifier.openurl
 
dc.identifier.scopuseid_2-s2.0-77950948405
 
dc.identifier.spage1913
 
dc.identifier.urihttp://hdl.handle.net/10722/124853
 
dc.identifier.volume44
 
dc.languageeng
 
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/atmosenv
 
dc.publisher.placeUnited Kingdom
 
dc.relation.ispartofAtmospheric Environment
 
dc.relation.referencesReferences in Scopus
 
dc.subjectCarbon monoxide
 
dc.subjectExposure
 
dc.subjectIntake fraction
 
dc.subjectRegional pollutant transport
 
dc.subjectVehicle emission
 
dc.titleIntake fraction of nonreactive motor vehicle exhaust in Hong Kong
 
dc.typeArticle
 
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Author Affiliations
  1. The University of Hong Kong
  2. UC Berkeley