Emission of aldehydes from light duty diesel vehicles

Detalhes bibliográficos
Autor(a) principal: Abrantes, Rui de
Data de Publicação: 2005
Outros Autores: Assunção, João V de, Hirai, Edegar Yoshio
Tipo de documento: Artigo
Idioma: por
eng
Título da fonte: Revista de Saúde Pública
Texto Completo: https://www.revistas.usp.br/rsp/article/view/31892
Resumo: OBJECTIVE: To characterize acetaldehyde and formaldehyde emissions, which are harmful gases to human health and not yet regulated for diesel engines. METHODS: Standardized tests were performed in four diesel light duty commercial vehicles, using a frame dynamometer and test procedure FTP-75. The pollutants were analyzed by high performance liquid chromatography. RESULTS: Results have shown acetaldehyde emission ranged from 5.9 to 45.4 mg/km, and formaldehyde emission from 16.5 to 115.2 mg/km. The average emission for aldehyde sum was 58.7 mg/km, ranging from 22.4 to 160.6 mg/km. The proportion between the two substances remained constant, close to 74% for formaldehydes and 26% for acetaldehydes. CONCLUSIONS: The emission of diesel vehicle aldehydes was significant when compared with actual spark ignition vehicle emissions, or with the foresee limit for Otto cycle vehicles in Brazilian legislation. Establishing emission limits for these substances also in diesel vehicles is imperative in the light of the vehicle fleet growth, toxicity of these compounds, and their contribution as precursors in ozone gas formation reactions in low troposphere.
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spelling Emission of aldehydes from light duty diesel vehicles Caracterização das emissões de aldeídos de veículos do ciclo diesel Substâncias perigosasAldeídosAcetaldeídoFormaldeídoEmissões de veículosPoluição do arHazardous substancesAldehydesAcetaldehydeFormaldehydeVehicle emissionsAir pollution OBJECTIVE: To characterize acetaldehyde and formaldehyde emissions, which are harmful gases to human health and not yet regulated for diesel engines. METHODS: Standardized tests were performed in four diesel light duty commercial vehicles, using a frame dynamometer and test procedure FTP-75. The pollutants were analyzed by high performance liquid chromatography. RESULTS: Results have shown acetaldehyde emission ranged from 5.9 to 45.4 mg/km, and formaldehyde emission from 16.5 to 115.2 mg/km. The average emission for aldehyde sum was 58.7 mg/km, ranging from 22.4 to 160.6 mg/km. The proportion between the two substances remained constant, close to 74% for formaldehydes and 26% for acetaldehydes. CONCLUSIONS: The emission of diesel vehicle aldehydes was significant when compared with actual spark ignition vehicle emissions, or with the foresee limit for Otto cycle vehicles in Brazilian legislation. Establishing emission limits for these substances also in diesel vehicles is imperative in the light of the vehicle fleet growth, toxicity of these compounds, and their contribution as precursors in ozone gas formation reactions in low troposphere. OBJETIVO: Caracterizar as emissões de acetaldeído e formaldeído, substâncias nocivas para a saúde das pessoas e cujas emissões dos veículos a diesel ainda não estão regulamentadas. MÉTODOS: Testes padronizados foram realizados em quatro veículos leves comerciais do ciclo diesel, testados num dinamômetro de chassis, usando o procedimento de teste FTP-75. Os poluentes foram analisados por cromatografia líquida de alta eficiência. RESULTADOS: Os resultados mostraram que a emissão de acetaldeído variou de 5,9 a 45,4 mg/km e a de formaldeído variou de 16,5 a 115,2 mg/km. A emissão média para a soma dos aldeídos foi de 58,7 mg/km, variando de 22,5 mg/km a 160 mg/km. A proporção entre os dois se manteve constante, próximo de 74% de formaldeído e 26% de acetaldeído. CONCLUSÕES: A emissão de aldeídos provenientes de veículos movidos a diesel foi significativa quando comparada com as emissões reais dos veículos de ignição por centelha ou com o limite previsto para os veículos do ciclo Otto na legislação brasileira. O estabelecimento de limites de emissão para essas substâncias para veículos a diesel mostra-se importante, considerando o crescimento da frota de veículos a diesel, a toxicidade desses compostos e sua participação como precursores nas reações de formação de gás ozônio na baixa troposfera. Universidade de São Paulo. Faculdade de Saúde Pública2005-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://www.revistas.usp.br/rsp/article/view/3189210.1590/S0034-89102005000300021Revista de Saúde Pública; Vol. 39 No. 3 (2005); 479-485 Revista de Saúde Pública; Vol. 39 Núm. 3 (2005); 479-485 Revista de Saúde Pública; v. 39 n. 3 (2005); 479-485 1518-87870034-8910reponame:Revista de Saúde Públicainstname:Universidade de São Paulo (USP)instacron:USPporenghttps://www.revistas.usp.br/rsp/article/view/31892/33865https://www.revistas.usp.br/rsp/article/view/31892/33866Copyright (c) 2017 Revista de Saúde Públicainfo:eu-repo/semantics/openAccessAbrantes, Rui deAssunção, João V deHirai, Edegar Yoshio2012-07-08T22:41:29Zoai:revistas.usp.br:article/31892Revistahttps://www.revistas.usp.br/rsp/indexONGhttps://www.revistas.usp.br/rsp/oairevsp@org.usp.br||revsp1@usp.br1518-87870034-8910opendoar:2012-07-08T22:41:29Revista de Saúde Pública - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Emission of aldehydes from light duty diesel vehicles
Caracterização das emissões de aldeídos de veículos do ciclo diesel
title Emission of aldehydes from light duty diesel vehicles
spellingShingle Emission of aldehydes from light duty diesel vehicles
Abrantes, Rui de
Substâncias perigosas
Aldeídos
Acetaldeído
Formaldeído
Emissões de veículos
Poluição do ar
Hazardous substances
Aldehydes
Acetaldehyde
Formaldehyde
Vehicle emissions
Air pollution
title_short Emission of aldehydes from light duty diesel vehicles
title_full Emission of aldehydes from light duty diesel vehicles
title_fullStr Emission of aldehydes from light duty diesel vehicles
title_full_unstemmed Emission of aldehydes from light duty diesel vehicles
title_sort Emission of aldehydes from light duty diesel vehicles
author Abrantes, Rui de
author_facet Abrantes, Rui de
Assunção, João V de
Hirai, Edegar Yoshio
author_role author
author2 Assunção, João V de
Hirai, Edegar Yoshio
author2_role author
author
dc.contributor.author.fl_str_mv Abrantes, Rui de
Assunção, João V de
Hirai, Edegar Yoshio
dc.subject.por.fl_str_mv Substâncias perigosas
Aldeídos
Acetaldeído
Formaldeído
Emissões de veículos
Poluição do ar
Hazardous substances
Aldehydes
Acetaldehyde
Formaldehyde
Vehicle emissions
Air pollution
topic Substâncias perigosas
Aldeídos
Acetaldeído
Formaldeído
Emissões de veículos
Poluição do ar
Hazardous substances
Aldehydes
Acetaldehyde
Formaldehyde
Vehicle emissions
Air pollution
description OBJECTIVE: To characterize acetaldehyde and formaldehyde emissions, which are harmful gases to human health and not yet regulated for diesel engines. METHODS: Standardized tests were performed in four diesel light duty commercial vehicles, using a frame dynamometer and test procedure FTP-75. The pollutants were analyzed by high performance liquid chromatography. RESULTS: Results have shown acetaldehyde emission ranged from 5.9 to 45.4 mg/km, and formaldehyde emission from 16.5 to 115.2 mg/km. The average emission for aldehyde sum was 58.7 mg/km, ranging from 22.4 to 160.6 mg/km. The proportion between the two substances remained constant, close to 74% for formaldehydes and 26% for acetaldehydes. CONCLUSIONS: The emission of diesel vehicle aldehydes was significant when compared with actual spark ignition vehicle emissions, or with the foresee limit for Otto cycle vehicles in Brazilian legislation. Establishing emission limits for these substances also in diesel vehicles is imperative in the light of the vehicle fleet growth, toxicity of these compounds, and their contribution as precursors in ozone gas formation reactions in low troposphere.
publishDate 2005
dc.date.none.fl_str_mv 2005-06-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://www.revistas.usp.br/rsp/article/view/31892
10.1590/S0034-89102005000300021
url https://www.revistas.usp.br/rsp/article/view/31892
identifier_str_mv 10.1590/S0034-89102005000300021
dc.language.iso.fl_str_mv por
eng
language por
eng
dc.relation.none.fl_str_mv https://www.revistas.usp.br/rsp/article/view/31892/33865
https://www.revistas.usp.br/rsp/article/view/31892/33866
dc.rights.driver.fl_str_mv Copyright (c) 2017 Revista de Saúde Pública
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2017 Revista de Saúde Pública
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Universidade de São Paulo. Faculdade de Saúde Pública
publisher.none.fl_str_mv Universidade de São Paulo. Faculdade de Saúde Pública
dc.source.none.fl_str_mv Revista de Saúde Pública; Vol. 39 No. 3 (2005); 479-485
Revista de Saúde Pública; Vol. 39 Núm. 3 (2005); 479-485
Revista de Saúde Pública; v. 39 n. 3 (2005); 479-485
1518-8787
0034-8910
reponame:Revista de Saúde Pública
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Revista de Saúde Pública
collection Revista de Saúde Pública
repository.name.fl_str_mv Revista de Saúde Pública - Universidade de São Paulo (USP)
repository.mail.fl_str_mv revsp@org.usp.br||revsp1@usp.br
_version_ 1800221783663575040

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