Using miniaturised scanning mobility particle sizers to observe size distribution patterns of quasi-ultrafine aerosols inhaled during city commuting

Portable miniaturised scanning mobility particle sizer (SMPS) instruments measuring atmospheric particles within the 10–241 nm size range were used to track particle number size distributions and concentrations during near-simultaneous pedestrian, bicycle, bus, car, tram and subway commuting journey...

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Autores: Moreno, Teresa, Reche, Cristina, Ahn, Kang-Ho, Eun, Hee Ram, Kim, Woo Young, Kim, Hee-Sang, Fernández-Iriarte, Amaia, Amato, Fulvio, Querol, Xavier
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2020
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/221117
Acceso en línea:http://hdl.handle.net/10261/221117
Access Level:acceso abierto
Palabra clave:Commuting air quality
SMPS
Ultrafine
New particle formation
Nucleation
Road traffic
Nanoparticles
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spelling Using miniaturised scanning mobility particle sizers to observe size distribution patterns of quasi-ultrafine aerosols inhaled during city commutingMoreno, TeresaReche, CristinaAhn, Kang-HoEun, Hee Ram Kim, Woo YoungKim, Hee-SangFernández-Iriarte, AmaiaAmato, FulvioQuerol, XavierCommuting air qualitySMPSUltrafineNew particle formationNucleationRoad trafficNanoparticlesPortable miniaturised scanning mobility particle sizer (SMPS) instruments measuring atmospheric particles within the 10–241 nm size range were used to track particle number size distributions and concentrations during near-simultaneous pedestrian, bicycle, bus, car, tram and subway commuting journeys in Barcelona, Spain on 4th-6th July 2018. The majority of particles in this size range were <100 nm, with k-means cluster analysis identifying peaks at 15–22 nm, 30–40 nm, and 45–75 nm. Around 10–25% of the particles measured however were >100 nm (especially in the subway environment) and so lie outside the commonly defined range of “ultrafine” particles (UFP, or <100 nm particles). The study demonstrated in detail how personal exposure to quasi-UFP (QUFP, <241 nm), most of which present in the city streets are produced by road traffic, varies greatly depending on the transport mode and route chosen. Proximity to fresh traffic exhaust sources, such as in a car with open windows, on-road cycling, walking downwind of busy roads, or in a subway station contaminated by roadside air, enhances commuter exposure to particles <30 nm in size. In contrast, travelling inside air-conditioned bus or tram offers greater protection to the commuter from high concentrations of fresh exhaust. Ultrafine number size distributions in traffic-contaminated city air typically peak in the size range 30–70 nm, but they can be shifted to finer sizes not only by increased content of fresh proximal exhaust emissions but also by bursts of new particle formation (NPF) events in the city. One such afternoon photochemical nucleation NPF event was identified during our Barcelona study and recognised in different transport modes, including underground in the subway system. The integration of static urban background air monitoring station information with particle number concentration and size distribution data obtained from portable miniaturised SMPS instruments during commuting journeys opens new approaches to investigating city air quality by offering a level of detail not previously available.The authors thank the following colleagues who helped carry the Hy-SMPS instrument on the commuting journeys: Andrés Alastuey, Cristina Carnerero, Miguel Escudero, Maria Izquierdo, Alessia Mancuso, Antonio Pacitto, Marco Pandolfi, Anna Ripoll, Apostolos Salmatonidis, Mar Viana, Jesus Yus. This work was supported by the Spanish Ministry of Economy and Competitiveness and FEDER funds within the I + D Projects CGL 2016-78594-R (HOUSE) and CGL 2016–79132 (BUSAIR), and the Catalan Research Agency (AGAUR 2017 SGR41) of the Generalitat de Catalunya.Peer reviewedElsevierMinisterio de Economía y Competitividad (España)Moreno, Teresa [0000-0003-3235-1027]Reche, Cristina [0000-0002-3387-3989]Amato, Fulvio [0000-0003-1546-9154]Querol, Xavier [0000-0002-6549-9899]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202020202020info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/221117reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CGL 2016-78594-Rinfo:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CGL 2016–79132https://doi.org/10.1016/j.envres.2020.109978Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2211172026-05-22T06:33:51Z
dc.title.none.fl_str_mv Using miniaturised scanning mobility particle sizers to observe size distribution patterns of quasi-ultrafine aerosols inhaled during city commuting
title Using miniaturised scanning mobility particle sizers to observe size distribution patterns of quasi-ultrafine aerosols inhaled during city commuting
spellingShingle Using miniaturised scanning mobility particle sizers to observe size distribution patterns of quasi-ultrafine aerosols inhaled during city commuting
Moreno, Teresa
Commuting air quality
SMPS
Ultrafine
New particle formation
Nucleation
Road traffic
Nanoparticles
title_short Using miniaturised scanning mobility particle sizers to observe size distribution patterns of quasi-ultrafine aerosols inhaled during city commuting
title_full Using miniaturised scanning mobility particle sizers to observe size distribution patterns of quasi-ultrafine aerosols inhaled during city commuting
title_fullStr Using miniaturised scanning mobility particle sizers to observe size distribution patterns of quasi-ultrafine aerosols inhaled during city commuting
title_full_unstemmed Using miniaturised scanning mobility particle sizers to observe size distribution patterns of quasi-ultrafine aerosols inhaled during city commuting
title_sort Using miniaturised scanning mobility particle sizers to observe size distribution patterns of quasi-ultrafine aerosols inhaled during city commuting
dc.creator.none.fl_str_mv Moreno, Teresa
Reche, Cristina
Ahn, Kang-Ho
Eun, Hee Ram
Kim, Woo Young
Kim, Hee-Sang
Fernández-Iriarte, Amaia
Amato, Fulvio
Querol, Xavier
author Moreno, Teresa
author_facet Moreno, Teresa
Reche, Cristina
Ahn, Kang-Ho
Eun, Hee Ram
Kim, Woo Young
Kim, Hee-Sang
Fernández-Iriarte, Amaia
Amato, Fulvio
Querol, Xavier
author_role author
author2 Reche, Cristina
Ahn, Kang-Ho
Eun, Hee Ram
Kim, Woo Young
Kim, Hee-Sang
Fernández-Iriarte, Amaia
Amato, Fulvio
Querol, Xavier
author2_role author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Economía y Competitividad (España)
Moreno, Teresa [0000-0003-3235-1027]
Reche, Cristina [0000-0002-3387-3989]
Amato, Fulvio [0000-0003-1546-9154]
Querol, Xavier [0000-0002-6549-9899]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Commuting air quality
SMPS
Ultrafine
New particle formation
Nucleation
Road traffic
Nanoparticles
topic Commuting air quality
SMPS
Ultrafine
New particle formation
Nucleation
Road traffic
Nanoparticles
description Portable miniaturised scanning mobility particle sizer (SMPS) instruments measuring atmospheric particles within the 10–241 nm size range were used to track particle number size distributions and concentrations during near-simultaneous pedestrian, bicycle, bus, car, tram and subway commuting journeys in Barcelona, Spain on 4th-6th July 2018. The majority of particles in this size range were <100 nm, with k-means cluster analysis identifying peaks at 15–22 nm, 30–40 nm, and 45–75 nm. Around 10–25% of the particles measured however were >100 nm (especially in the subway environment) and so lie outside the commonly defined range of “ultrafine” particles (UFP, or <100 nm particles). The study demonstrated in detail how personal exposure to quasi-UFP (QUFP, <241 nm), most of which present in the city streets are produced by road traffic, varies greatly depending on the transport mode and route chosen. Proximity to fresh traffic exhaust sources, such as in a car with open windows, on-road cycling, walking downwind of busy roads, or in a subway station contaminated by roadside air, enhances commuter exposure to particles <30 nm in size. In contrast, travelling inside air-conditioned bus or tram offers greater protection to the commuter from high concentrations of fresh exhaust. Ultrafine number size distributions in traffic-contaminated city air typically peak in the size range 30–70 nm, but they can be shifted to finer sizes not only by increased content of fresh proximal exhaust emissions but also by bursts of new particle formation (NPF) events in the city. One such afternoon photochemical nucleation NPF event was identified during our Barcelona study and recognised in different transport modes, including underground in the subway system. The integration of static urban background air monitoring station information with particle number concentration and size distribution data obtained from portable miniaturised SMPS instruments during commuting journeys opens new approaches to investigating city air quality by offering a level of detail not previously available.
publishDate 2020
dc.date.none.fl_str_mv 2020
2020
2020
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/221117
url http://hdl.handle.net/10261/221117
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CGL 2016-78594-R
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CGL 2016–79132
https://doi.org/10.1016/j.envres.2020.109978
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
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repository.mail.fl_str_mv
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