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Ambient concentrations and dosimetry of inhaled size-segregated particulate matter during periods of low urban mobility in Braganca, Portugal

2022Journal article Open access
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dc.contributor.authorCipoli, Yago Alonso
dc.contributor.authorTargino, Admir Creso
dc.contributor.authorKrecl, Patricia
dc.contributor.authorFurst, Leonardo
dc.contributor.authorAlves, Célia
dc.contributor.authorFeliciano, Manuel
dc.date.accessioned2023-03-06T12:10:49Z
dc.date.available2023-03-06T12:10:49Z
dc.date.issued2022
dc.description.abstractThe restrictive measures in place during the COVID-19 pandemic provided a timely scenario to investigate the effects of human activities on air quality, and the extent to which mobility reduction strategies can impact atmospheric pollutant levels. Real-time concentrations of PM1, PM2.5 and PM(10 )were measured using a mobile platform in a small city of Portugal, during morning and afternoon rush hours, in two distinct phases of the pandemic: emergency phase (cold period, lockdown) and calamity phase (warm period, less restricted). The Multiple-Path Particle Dosimetry Model (MPPD) was used to calculate the PM deposition for adults. Large spatiotemporal variabilities and pronounced changes in mean PM concentrations were observed, with lower concentrations in the calamity phase: PM1 = 2.33 +/- 1.61 mu g m(-3); PM2.5 = 5.15 +/- 2.77 mu g m(-3); PM10 = 23.30 +/- 21.53 mu g m(-3) than in the emergency phase: PM1 = 16.85 +/- 31.80 mu g m(-3); PM2.5 = 30.92 +/- 31.93 mu g m(-3); PM10 = 111.27 +/- 104.53 mu g m(-3). These changes are explained by a combination of meteorological factors and local emissions, mainly residential firewood burning. Regarding regional deposition, PM1 was the main contributor to deposition in the tracheobronchial (5%) and pulmonary (12%) regions, and PM10 in the head region (92%). In general, total deposition doses were higher for males than for females. This work quantitatively demonstrated that even with a 38% reduction in urban mobility during the lockdown, the use of firewood for residential heating is the main contributor to the high concentrations of PM and the respective inhaled dose.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationCipoli, Yago Alonso; Targino, Admir Creso; Krecl, Patricia; Furst, Leonardo; Alves, Célia; Feliciano, Manuel. (2022). Ambient concentrations and dosimetry of inhaled size-segregated particulate matter during periods of low urban mobility in Braganca, Portugal. Atmospheric Pollution Research. ISSN 1309-1042. 13:9, p. 1-11pt_PT
dc.identifier.issn1309-1042
dc.identifier.urihttp://hdl.handle.net/10198/27476
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherTurkish National Committee for Air Pollution and Control
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectSize-segregated particulate matterpt_PT
dc.subjectMobile monitoringpt_PT
dc.subjectLockdownpt_PT
dc.subjectExposure assessmentpt_PT
dc.subjectMPPD dosimetry modelpt_PT
dc.titleAmbient concentrations and dosimetry of inhaled size-segregated particulate matter during periods of low urban mobility in Braganca, Portugalpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.titleAtmospheric Pollution Researchpt_PT
person.familyNameCipoli
person.familyNameFurst
person.familyNameFeliciano
person.givenNameYago Alonso
person.givenNameLeonardo
person.givenNameManuel
person.identifierhttps://scholar.google.com/citations?hl=pt-PT&user=LtiMRYcAAAAJ
person.identifier.ciencia-idA915-F508-3C88
person.identifier.ciencia-idA41D-C8EF-8809
person.identifier.ciencia-id2D11-7230-702B
person.identifier.orcid0000-0002-2818-4409
person.identifier.orcid0000-0002-0313-4915
person.identifier.orcid0000-0002-3147-4511
person.identifier.scopus-author-id6603358480
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication6e89f0dc-406a-46ba-b76a-9cd5317875d2
relation.isAuthorOfPublication3f5a5cfc-304b-405b-8d80-64c584bd249e
relation.isAuthorOfPublicationccb9c69d-2820-493b-ab44-77b0538814fa
relation.isAuthorOfPublication.latestForDiscovery3f5a5cfc-304b-405b-8d80-64c584bd249e

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