| Texto completo | |
| Autor(es): |
Nogueira, Thiago
[1]
;
Dominutti, Pamela Alejandra
[1]
;
Franco de Carvalho, Lilian Rothschild
[2]
;
Fornaro, Adalgiza
[1]
;
Andrade, Maria de Fatima
[1]
Número total de Autores: 5
|
| Afiliação do(s) autor(es): | [1] Univ Sao Paulo IAG USP, Inst Astron Geophys & Atmospher Sci, Dept Atmospher Sci, Sao Paulo - Brazil
[2] Univ Sao Paulo IQ USP, Inst Chem, Dept Fundamental Chem, Sao Paulo - Brazil
Número total de Afiliações: 2
|
| Tipo de documento: | Artigo Científico |
| Fonte: | FUEL; v. 134, p. 505-513, OCT 15 2014. |
| Citações Web of Science: | 20 |
| Resumo | |
There is a consensus that particulate matter and gases pollutants originating from industry and vehicle emission processes in urban areas are important from the point of view of public health and climate change. Local anthropogenic emissions, especially those resulting from energy generation processes from the industrial and transport sector, are connected with those occurring at the regional and global scales. A major concern in the Metropolitan Area of Sao Paulo (MASP) is the impact of the large scale use of ethanol as a fuel and as an additive for Otto vehicles. In this study, atmospheric concentrations of ozone, nitrogen oxides (NO and NO2), formaldehyde and acetaldehyde were measured in the MASP in Brazil, over four seasons in 2012 and 2013. The results were compared with data collected in previous studies. Our results demonstrate that, although there was a large increase in the number of vehicles in the MASP that use ethanol ({''}flex-fuel{''} vehicles), technological advances in vehicle emissions control have prevented any significant increase in the atmospheric concentrations of aldehydes. In addition, an increase in the formaldehyde/acetaldehyde ratio has been observed. (C) 2014 Elsevier Ltd. All rights reserved. (AU) | |
| Processo FAPESP: | 08/58104-8 - Narrowing the uncertainties on aerosol and climate changes in São Paulo State: NUANCES-SPS |
| Beneficiário: | Maria de Fátima Andrade |
| Modalidade de apoio: | Auxílio à Pesquisa - Programa de Pesquisa sobre Mudanças Climáticas Globais - Temático |
| Processo FAPESP: | 11/18777-6 - Avaliação das emissões veiculares de compostos orgânicos e inorgânicos provenientes da combustão de biocombustíveis e suas contribuições na qualidade do ar na RMSP |
| Beneficiário: | Thiago Nogueira |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |