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Please use this identifier to cite or link to this item: http://repositorio.ufba.br/ri/handle/ri/15562

Title: Particle emission from heavy-duty engine fuelled with blended diesel and biodiesel
Other Titles: Environmental Monitoring and Assessment
Authors: Sousa, Eliane Teixeira
Martins, Leila Droprinchinski
Silva Júnior, Carlos Roberto da
Solci, Maria Cristina
Pinto, Jurandir Pereira
Souza, Davi Zacarias
Vasconcellos, Pérola de Castro
Guarieiro, Aline Lefol Nani
Guarieiro, Lílian Lefol Nani
Andrade, Jailson Bittencourt de
Keywords: Biodiesel;Particulate matter;Emissions;Diesel;PAH
Issue Date: 2012
Abstract: In this study, particulate matter (PM) were characterized from a place impacted by heavy-duty vehicles (Bus Station) fuelled with diesel/biodiesel fuel blend (B3) in the city of Londrina, Brazil. Sixteen priority polycyclic aromatic hydrocarbons (PAH) concentrations were analyzed in the samples by their association with atmospheric PM, mass size distributions and major ions (fluorite, chloride, bromide, nitrate, phosphate, sulfate, nitrite, oxalate; fumarate, formate, succinate and acetate; lithium, sodium, potassium, magnesium, calcium and ammonium). Results indicate that major ions represented 21.2% particulate matter mass. Nitrate, sulfate, and ammonium, respectively, presented the highest concentration levels, indicating that biodiesel may also be a significant source for these ions, especially nitrate. Dibenzo[a,h]anthracene and indeno[1,2,3,-cd]pyrene were the main PAH found, and a higher fraction of PAH particles was found in diameters lower than 0.25 μm in Londrina bus station. The fine and ultrafine particles were dominant among the PM evaluated, suggesting that biodiesel decreases the total PAH emission. However, it does also increase the fraction of fine and ultrafine particles when compared to diesel.
Description: Texto completo: acesso restrito. p. 2663-2676
URI: http://repositorio.ufba.br/ri/handle/ri/15562
ISSN: 0167-6369
Appears in Collections:Artigos Publicados em Periódicos (Quimica)

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