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metadata.dc.type: | Artigo de Periódico |
Title: | Toxicity of biodiesel, diesel and biodiesel/diesel blends: comparative sub-lethal effects of water-soluble fractions to microalgae species |
Other Titles: | Bulletin of Environmental Contamination and Toxicology |
Authors: | Pereira, Solange Andrade Araújo, Vinicius Queiroz Rebouças, Márcio das Virgens Vieira, Fernanda Seabra Vianna Almeida, Marcos Vinicio A. de Chinalia, Fábio Alexandre Nascimento, Iracema Andrade |
metadata.dc.creator: | Pereira, Solange Andrade Araújo, Vinicius Queiroz Rebouças, Márcio das Virgens Vieira, Fernanda Seabra Vianna Almeida, Marcos Vinicio A. de Chinalia, Fábio Alexandre Nascimento, Iracema Andrade |
Abstract: | The water-soluble-fractions (WSF) from biodiesel and biodiesel/diesel blends were compared to diesel in their sub-lethal toxicity to microalgae. Chemical analyses of aromatics, non-aromatics hydrocarbons and methanol were carried out in the WSF, the former showing positive correlation with increasing diesel concentrations (B100 < B5 < B3 < B2 < D). Biodiesel interacted with the aqueous matrix, generating methanol, which showed lower toxicity than the diesel contaminants in blends. The WSF caused 50% culture growth inhibition (IC50-96 h) at concentrations varying from 2.3 to 85.6%, depending on the tested fuels and species. However, the same species sensitivity trend (S. costatum > N. oculata > T.chuii > P. subcapitata) was observed for all the tested fuels. |
Keywords: | Toxicity Microalgae Biodiesel Blends |
metadata.dc.rights: | Acesso Aberto |
URI: | http://repositorio.ufba.br/ri/handle/ri/15698 |
Issue Date: | 2012 |
Appears in Collections: | Artigo Publicado em Periódico (Biologia) |
Files in This Item:
File | Description | Size | Format | |
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Solange A. Pereira.pdf | 297,77 kB | Adobe PDF | View/Open |
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