Emission of aldehydes from light duty diesel vehicles
Autor(a) principal: | |
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Data de Publicação: | 2005 |
Outros Autores: | , |
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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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 |