Exposure of children to ultrafine particles in primary schools in Portugal

Detalhes bibliográficos
Autor(a) principal: Rufo, João Cavaleiro
Data de Publicação: 2015
Outros Autores: Madureira, Joana, Paciência, Inês, Slezakova, Klara, Pereira, Maria do Carmo, Pereira, Cristiana, Teixeira, João Paulo, Pinto, Mariana, Moreira, André, Fernandes, Eduardo de Oliveira
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.18/4054
Resumo: Children spend a large part of their time at schools, which might be reflected as chronic exposure. Ultrafine particles (UFP) are generally associated with a more severe toxicity compared to fine and coarse particles, due to their ability to penetrate cell membranes. In addition, children tend to be more susceptible to UFP-mediated toxicity compared to adults, due to various factors including undeveloped immune and respiratory systems and inhalation rates. Thus, the purpose of this study was to determine indoor UFP number concentrations in Portuguese primary schools. Ultrafine particles were sampled between January and March 2014 in 10 public primary schools (35 classrooms) located in Porto, Portugal. Overall, the average indoor UFP number concentrations were not significantly different from outdoor concentrations (8.69 × 10(3) vs. 9.25 × 10(3) pt/cm(3), respectively; considering 6.5 h of indoor occupancy). Classrooms with distinct characteristics showed different trends of indoor UFP concentrations. The levels of carbon dioxide were negatively correlated with indoor UFP concentrations. Occupational density was significantly and positively correlated with UFP concentrations. Although the obtained results need to be interpreted with caution since there are no guidelines for UFP levels, special attention needs to be given to source control strategies in order to reduce major particle emissions and ensure good indoor air quality.
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spelling Exposure of children to ultrafine particles in primary schools in PortugalAir PollutantsAir PollutionChildEnvironmental MonitoringHumansParticulate MatterPortugalInhalation ExposureParticle SizeSchoolsIndoorAr e Saúde OcupacionalPortugalChildren spend a large part of their time at schools, which might be reflected as chronic exposure. Ultrafine particles (UFP) are generally associated with a more severe toxicity compared to fine and coarse particles, due to their ability to penetrate cell membranes. In addition, children tend to be more susceptible to UFP-mediated toxicity compared to adults, due to various factors including undeveloped immune and respiratory systems and inhalation rates. Thus, the purpose of this study was to determine indoor UFP number concentrations in Portuguese primary schools. Ultrafine particles were sampled between January and March 2014 in 10 public primary schools (35 classrooms) located in Porto, Portugal. Overall, the average indoor UFP number concentrations were not significantly different from outdoor concentrations (8.69 × 10(3) vs. 9.25 × 10(3) pt/cm(3), respectively; considering 6.5 h of indoor occupancy). Classrooms with distinct characteristics showed different trends of indoor UFP concentrations. The levels of carbon dioxide were negatively correlated with indoor UFP concentrations. Occupational density was significantly and positively correlated with UFP concentrations. Although the obtained results need to be interpreted with caution since there are no guidelines for UFP levels, special attention needs to be given to source control strategies in order to reduce major particle emissions and ensure good indoor air quality.This study was performed in the framework of the ARIA project financed by Fundação para a Ciência e Tecnologia (PTDC/DTP-PA/1522/2012, FCOMP-01-0124-FEDER-028709), the project “E2BE” (NORTE-07-0124-FEDER-000036) financed by the Portuguese CCDR-N through the European Union FEDER programme, and the fellowship SFRH/BPD/65722/2009.Taylor & FrancisRepositório Científico do Instituto Nacional de SaúdeRufo, João CavaleiroMadureira, JoanaPaciência, InêsSlezakova, KlaraPereira, Maria do CarmoPereira, CristianaTeixeira, João PauloPinto, MarianaMoreira, AndréFernandes, Eduardo de Oliveira2016-10-19T13:34:09Z20152015-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.18/4054engJ Toxicol Environ Health A. 2015;78(13-14):904-14. doi: 10.1080/15287394.2015.1048866.1528-739410.1080/15287394.2015.1048866info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-20T15:40:06Zoai:repositorio.insa.pt:10400.18/4054Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T18:38:50.337612Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Exposure of children to ultrafine particles in primary schools in Portugal
title Exposure of children to ultrafine particles in primary schools in Portugal
spellingShingle Exposure of children to ultrafine particles in primary schools in Portugal
Rufo, João Cavaleiro
Air Pollutants
Air Pollution
Child
Environmental Monitoring
Humans
Particulate Matter
Portugal
Inhalation Exposure
Particle Size
Schools
Indoor
Ar e Saúde Ocupacional
Portugal
title_short Exposure of children to ultrafine particles in primary schools in Portugal
title_full Exposure of children to ultrafine particles in primary schools in Portugal
title_fullStr Exposure of children to ultrafine particles in primary schools in Portugal
title_full_unstemmed Exposure of children to ultrafine particles in primary schools in Portugal
title_sort Exposure of children to ultrafine particles in primary schools in Portugal
author Rufo, João Cavaleiro
author_facet Rufo, João Cavaleiro
Madureira, Joana
Paciência, Inês
Slezakova, Klara
Pereira, Maria do Carmo
Pereira, Cristiana
Teixeira, João Paulo
Pinto, Mariana
Moreira, André
Fernandes, Eduardo de Oliveira
author_role author
author2 Madureira, Joana
Paciência, Inês
Slezakova, Klara
Pereira, Maria do Carmo
Pereira, Cristiana
Teixeira, João Paulo
Pinto, Mariana
Moreira, André
Fernandes, Eduardo de Oliveira
author2_role author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Repositório Científico do Instituto Nacional de Saúde
dc.contributor.author.fl_str_mv Rufo, João Cavaleiro
Madureira, Joana
Paciência, Inês
Slezakova, Klara
Pereira, Maria do Carmo
Pereira, Cristiana
Teixeira, João Paulo
Pinto, Mariana
Moreira, André
Fernandes, Eduardo de Oliveira
dc.subject.por.fl_str_mv Air Pollutants
Air Pollution
Child
Environmental Monitoring
Humans
Particulate Matter
Portugal
Inhalation Exposure
Particle Size
Schools
Indoor
Ar e Saúde Ocupacional
Portugal
topic Air Pollutants
Air Pollution
Child
Environmental Monitoring
Humans
Particulate Matter
Portugal
Inhalation Exposure
Particle Size
Schools
Indoor
Ar e Saúde Ocupacional
Portugal
description Children spend a large part of their time at schools, which might be reflected as chronic exposure. Ultrafine particles (UFP) are generally associated with a more severe toxicity compared to fine and coarse particles, due to their ability to penetrate cell membranes. In addition, children tend to be more susceptible to UFP-mediated toxicity compared to adults, due to various factors including undeveloped immune and respiratory systems and inhalation rates. Thus, the purpose of this study was to determine indoor UFP number concentrations in Portuguese primary schools. Ultrafine particles were sampled between January and March 2014 in 10 public primary schools (35 classrooms) located in Porto, Portugal. Overall, the average indoor UFP number concentrations were not significantly different from outdoor concentrations (8.69 × 10(3) vs. 9.25 × 10(3) pt/cm(3), respectively; considering 6.5 h of indoor occupancy). Classrooms with distinct characteristics showed different trends of indoor UFP concentrations. The levels of carbon dioxide were negatively correlated with indoor UFP concentrations. Occupational density was significantly and positively correlated with UFP concentrations. Although the obtained results need to be interpreted with caution since there are no guidelines for UFP levels, special attention needs to be given to source control strategies in order to reduce major particle emissions and ensure good indoor air quality.
publishDate 2015
dc.date.none.fl_str_mv 2015
2015-01-01T00:00:00Z
2016-10-19T13:34:09Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.18/4054
url http://hdl.handle.net/10400.18/4054
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv J Toxicol Environ Health A. 2015;78(13-14):904-14. doi: 10.1080/15287394.2015.1048866.
1528-7394
10.1080/15287394.2015.1048866
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Taylor & Francis
publisher.none.fl_str_mv Taylor & Francis
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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