File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Emissions of gas- and particle-phase polycyclic aromatic hydrocarbons (PAHs) in the Shing Mun Tunnel, Hong Kong

TitleEmissions of gas- and particle-phase polycyclic aromatic hydrocarbons (PAHs) in the Shing Mun Tunnel, Hong Kong
Authors
KeywordsHong Kong
Emission factor
Gas- and particle PAHs
PAH
Tunnel
Issue Date2009
Citation
Atmospheric Environment, 2009, v. 43, n. 40, p. 6343-6351 How to Cite?
AbstractReal-world vehicle emission factors for seventeen gas and particulate polycyclic aromatic hydrocarbons (PAHs) were quantified in the Shing Mun Tunnel, Hong Kong during summer and winter 2003. Naphthalene, acenaphthylene, and acenaphthene were the most abundant gas PAHs while fluoranthene and pyrene were the most abundant in the particle phase. Most (98%) of the gas PAHs consisted of two- and three-aromatic rings whereas most of the particle-phase PAHs were in four- (∼60%) and five-ring (∼17%) for fresh exhaust emissions. Average emission factors for the gas- and particle PAHs were 950-2564 μg veh-1 km-1 and 22-354 μg veh-1 km-1, respectively. Good correlations were found between diesel markers (fluoranthene and pyrene; 0.85) and gasoline markers (benzo(ghi)perylene and indeno(1,2,3-cd)pyrene; 0.96). Higher PAH emission factors were associated with a higher fraction of diesel-fueled vehicles (DV) passing through the tunnel. Separate emission factors were determined from diesel and non-diesel exhaust by the regression intercept method. The average PAH emission factor (i.e., sum of gas and particle phases) from DV (3085 ± 1058 μg veh-1 km -1) was ∼5 times higher than that from non-diesel-fueled vehicles (NDV, 566 ± 428 μg veh-1 km -1). Ratios of DV to NDV emission factors were high for diesel markers (>24) and low for gasoline markers (<0.4). © 2009 Elsevier Ltd. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/207018
ISSN
2015 Impact Factor: 3.459
2015 SCImago Journal Rankings: 1.999

 

DC FieldValueLanguage
dc.contributor.authorHo, Kinfai-
dc.contributor.authorHo, Steven Sai Hang-
dc.contributor.authorLee, Sichen-
dc.contributor.authorCheng, Yan-
dc.contributor.authorChow, Judith C.-
dc.contributor.authorWatson, John G.-
dc.contributor.authorLouie, Peter Kwok Keung-
dc.contributor.authorTian, Linwei-
dc.date.accessioned2014-12-09T04:31:15Z-
dc.date.available2014-12-09T04:31:15Z-
dc.date.issued2009-
dc.identifier.citationAtmospheric Environment, 2009, v. 43, n. 40, p. 6343-6351-
dc.identifier.issn1352-2310-
dc.identifier.urihttp://hdl.handle.net/10722/207018-
dc.description.abstractReal-world vehicle emission factors for seventeen gas and particulate polycyclic aromatic hydrocarbons (PAHs) were quantified in the Shing Mun Tunnel, Hong Kong during summer and winter 2003. Naphthalene, acenaphthylene, and acenaphthene were the most abundant gas PAHs while fluoranthene and pyrene were the most abundant in the particle phase. Most (98%) of the gas PAHs consisted of two- and three-aromatic rings whereas most of the particle-phase PAHs were in four- (∼60%) and five-ring (∼17%) for fresh exhaust emissions. Average emission factors for the gas- and particle PAHs were 950-2564 μg veh-1 km-1 and 22-354 μg veh-1 km-1, respectively. Good correlations were found between diesel markers (fluoranthene and pyrene; 0.85) and gasoline markers (benzo(ghi)perylene and indeno(1,2,3-cd)pyrene; 0.96). Higher PAH emission factors were associated with a higher fraction of diesel-fueled vehicles (DV) passing through the tunnel. Separate emission factors were determined from diesel and non-diesel exhaust by the regression intercept method. The average PAH emission factor (i.e., sum of gas and particle phases) from DV (3085 ± 1058 μg veh-1 km -1) was ∼5 times higher than that from non-diesel-fueled vehicles (NDV, 566 ± 428 μg veh-1 km -1). Ratios of DV to NDV emission factors were high for diesel markers (>24) and low for gasoline markers (<0.4). © 2009 Elsevier Ltd. All rights reserved.-
dc.languageeng-
dc.relation.ispartofAtmospheric Environment-
dc.subjectHong Kong-
dc.subjectEmission factor-
dc.subjectGas- and particle PAHs-
dc.subjectPAH-
dc.subjectTunnel-
dc.titleEmissions of gas- and particle-phase polycyclic aromatic hydrocarbons (PAHs) in the Shing Mun Tunnel, Hong Kong-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.atmosenv.2009.09.025-
dc.identifier.scopuseid_2-s2.0-71049134302-
dc.identifier.volume43-
dc.identifier.issue40-
dc.identifier.spage6343-
dc.identifier.epage6351-

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats