Size-segregated particulate matter and gaseous emissions from motor vehicles in a road tunnel

In order to address road traffic emissions, studies need to be performed under realistic driving conditions where the input from other sources is minimised. Measurements in traffic tunnels have been used for quantifying emissions, but so far no study has established emission factors (EFs) for Southe...

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Autores: Alves, Célia A., Gomes, Joana, Nunes, Teresa, Duarte, Márcio, Calvo, Ana, Custódio, Danilo, Pio, Casimiro, Karanasiou, Angeliki, Querol, Xavier
Tipo de documento: artigo
Estado:Versión aceptada para publicación
Data de publicação:2015
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositório:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/344932
Acesso em linha:http://hdl.handle.net/10261/344932
https://api.elsevier.com/content/abstract/scopus_id/84906771317
Access Level:Acceso aberto
Palavra-chave:Size-segregated particles
Emission factors
Exhaust gases
Non-exhaust emissions
OC/EC
Road tunnel
http://metadata.un.org/sdg/11
http://metadata.un.org/sdg/3
Ensure healthy lives and promote well-being for all at all ages
Make cities and human settlements inclusive, safe, resilient and sustainable
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spelling Size-segregated particulate matter and gaseous emissions from motor vehicles in a road tunnelAlves, Célia A.Gomes, JoanaNunes, TeresaDuarte, MárcioCalvo, AnaCustódio, DaniloPio, CasimiroKaranasiou, AngelikiQuerol, XavierSize-segregated particlesEmission factorsExhaust gasesNon-exhaust emissionsOC/ECRoad tunnelhttp://metadata.un.org/sdg/11http://metadata.un.org/sdg/3Ensure healthy lives and promote well-being for all at all agesMake cities and human settlements inclusive, safe, resilient and sustainableIn order to address road traffic emissions, studies need to be performed under realistic driving conditions where the input from other sources is minimised. Measurements in traffic tunnels have been used for quantifying emissions, but so far no study has established emission factors (EFs) for Southern Europe. To fill this gap, a sampling campaign was carried out for one week in the Liberdade Avenue tunnel (Braga, Portugal). The campaign included the monitoring of gaseous pollutants (CO2, CO, NOx) and suspended particulate matter (PM) at two sites, one in the tunnel and another in an urban background location. Organic and elemental carbon (OC and EC) in size-segregated particles (PM0.5, PM0.5-1, PM1-2.5 and PM2.5-10) were determined by a thermal-optical system, whereas major and trace elements were analysed by ICP-MS and ICP-AES. PM0.5 accounted for 56% of the PM10 mass, while PM2.5-10 represented only 12%. The carbonaceous fraction was concentrated in PM0.5, encompassing 88% of the EC and 67% of the OC present in PM10. Elements attributable to non-exhaust emissions could be divided into two groups. Fe, Ba, Cu, Sb, Sn and Zn, from tyre and brake wear, were more abundant in particles between 1 and 2μm. Ca, Al, K, Sr and Ti, associated with soil resuspension, were mainly present in particles >2μm. The average EFs of CO, CO2 and NOx were 212, 4.02 and 1.22gveh-1km-1, respectively, while values of 152mgPM10veh-1km-1 and 133mgPM2.5veh-1km-1 were obtained for the particles. OC and EC emission factor was 39mgveh-1km-1 for PM10. The corresponding OC and EC values for PM2.5 were 34 and 38mgveh-1km-1. The EFs are slightly lower than those found for other tunnels, but within the ranges presented by the EMEP/EEA inventory. © 2014 Elsevier B.V.This work was funded by the Portuguese Science Foundation through the project “Source apportionment of URBan Emissions of primary particulate matter”, PTDC/AAC-AMB/117956/2010 (URBE). Special thanks are given to the Braga City Council, Municipal Police and University of Minho for all the logistic support. An acknowledgement is also given to António Vicente Araújo from the North Regional Coordination and Development Commission (CCDR-N) for his support with the operation of the NOx analysers.Peer reviewedElsevierConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202420242015info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/344932https://api.elsevier.com/content/abstract/scopus_id/84906771317reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésAtmospheric Researchhttps://doi.org/10.1016/j.atmosres.2014.08.002Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3449322026-05-22T06:33:51Z
dc.title.none.fl_str_mv Size-segregated particulate matter and gaseous emissions from motor vehicles in a road tunnel
title Size-segregated particulate matter and gaseous emissions from motor vehicles in a road tunnel
spellingShingle Size-segregated particulate matter and gaseous emissions from motor vehicles in a road tunnel
Alves, Célia A.
Size-segregated particles
Emission factors
Exhaust gases
Non-exhaust emissions
OC/EC
Road tunnel
http://metadata.un.org/sdg/11
http://metadata.un.org/sdg/3
Ensure healthy lives and promote well-being for all at all ages
Make cities and human settlements inclusive, safe, resilient and sustainable
title_short Size-segregated particulate matter and gaseous emissions from motor vehicles in a road tunnel
title_full Size-segregated particulate matter and gaseous emissions from motor vehicles in a road tunnel
title_fullStr Size-segregated particulate matter and gaseous emissions from motor vehicles in a road tunnel
title_full_unstemmed Size-segregated particulate matter and gaseous emissions from motor vehicles in a road tunnel
title_sort Size-segregated particulate matter and gaseous emissions from motor vehicles in a road tunnel
dc.creator.none.fl_str_mv Alves, Célia A.
Gomes, Joana
Nunes, Teresa
Duarte, Márcio
Calvo, Ana
Custódio, Danilo
Pio, Casimiro
Karanasiou, Angeliki
Querol, Xavier
author Alves, Célia A.
author_facet Alves, Célia A.
Gomes, Joana
Nunes, Teresa
Duarte, Márcio
Calvo, Ana
Custódio, Danilo
Pio, Casimiro
Karanasiou, Angeliki
Querol, Xavier
author_role author
author2 Gomes, Joana
Nunes, Teresa
Duarte, Márcio
Calvo, Ana
Custódio, Danilo
Pio, Casimiro
Karanasiou, Angeliki
Querol, Xavier
author2_role author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Size-segregated particles
Emission factors
Exhaust gases
Non-exhaust emissions
OC/EC
Road tunnel
http://metadata.un.org/sdg/11
http://metadata.un.org/sdg/3
Ensure healthy lives and promote well-being for all at all ages
Make cities and human settlements inclusive, safe, resilient and sustainable
topic Size-segregated particles
Emission factors
Exhaust gases
Non-exhaust emissions
OC/EC
Road tunnel
http://metadata.un.org/sdg/11
http://metadata.un.org/sdg/3
Ensure healthy lives and promote well-being for all at all ages
Make cities and human settlements inclusive, safe, resilient and sustainable
description In order to address road traffic emissions, studies need to be performed under realistic driving conditions where the input from other sources is minimised. Measurements in traffic tunnels have been used for quantifying emissions, but so far no study has established emission factors (EFs) for Southern Europe. To fill this gap, a sampling campaign was carried out for one week in the Liberdade Avenue tunnel (Braga, Portugal). The campaign included the monitoring of gaseous pollutants (CO2, CO, NOx) and suspended particulate matter (PM) at two sites, one in the tunnel and another in an urban background location. Organic and elemental carbon (OC and EC) in size-segregated particles (PM0.5, PM0.5-1, PM1-2.5 and PM2.5-10) were determined by a thermal-optical system, whereas major and trace elements were analysed by ICP-MS and ICP-AES. PM0.5 accounted for 56% of the PM10 mass, while PM2.5-10 represented only 12%. The carbonaceous fraction was concentrated in PM0.5, encompassing 88% of the EC and 67% of the OC present in PM10. Elements attributable to non-exhaust emissions could be divided into two groups. Fe, Ba, Cu, Sb, Sn and Zn, from tyre and brake wear, were more abundant in particles between 1 and 2μm. Ca, Al, K, Sr and Ti, associated with soil resuspension, were mainly present in particles >2μm. The average EFs of CO, CO2 and NOx were 212, 4.02 and 1.22gveh-1km-1, respectively, while values of 152mgPM10veh-1km-1 and 133mgPM2.5veh-1km-1 were obtained for the particles. OC and EC emission factor was 39mgveh-1km-1 for PM10. The corresponding OC and EC values for PM2.5 were 34 and 38mgveh-1km-1. The EFs are slightly lower than those found for other tunnels, but within the ranges presented by the EMEP/EEA inventory. © 2014 Elsevier B.V.
publishDate 2015
dc.date.none.fl_str_mv 2015
2024
2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/344932
https://api.elsevier.com/content/abstract/scopus_id/84906771317
url http://hdl.handle.net/10261/344932
https://api.elsevier.com/content/abstract/scopus_id/84906771317
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Atmospheric Research
https://doi.org/10.1016/j.atmosres.2014.08.002
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,81155

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