Por favor, use este identificador para citar o enlazar este ítem:
https://repositorio.ufba.br/handle/ri/5899
metadata.dc.type: | Artigo de Periódico |
Título : | Particle-associated polycyclic aromatic hydrocarbons and their dry deposition fluxes from a bus-station in the Rio de Janeiro metropolitan area, Brazil |
Otros títulos : | Journal of the Brazilian Chemical Society |
Autor : | Machado, Mauro C. S. Loyola, Josiane Quiterio, Simone L. Rocha, Gisele Olímpio da Andrade, Jailson Bittencourt de Arbilla, Graciela |
metadata.dc.creator: | Machado, Mauro C. S. Loyola, Josiane Quiterio, Simone L. Rocha, Gisele Olímpio da Andrade, Jailson Bittencourt de Arbilla, Graciela |
Resumen : | Total particulate matter and PM10 samples were collected from August 2006 to February 2007 in Mayor José Carlos Lacerda bus station. 16 priority PAHs compounds emitted by heavy-duty vehicles on typical conditions of operation were analyzed by using GC/MS. ΣPAH accounted for 0.0018% of the TSP mass and 0.0012% of the PM10 mass. Total PAH contents on the particle phase were 3.57 ng m-3 and 2.59 ng m-3 for TSP and PM10, respectively. Contributions of carcinogenic USEPA priority PAHs (B[a]An, B[b]F, B[k]F, B[a]Py, IPy and DB[ah]A) were 1.86 ng m-3 (52% of total PAHs) and 1.40 ng m-3 (54% of total PAHs), for TSP and PM10 samples, respectively. Diagnostic ratios and multivariate statistical analysis were, in general, similar to those reported for soil dust except for the Flt/Flt+Py) ratio, 0.34, compatible with diesel emissions. Dry deposition fluxes were in the range of 0.022-0.603 and 0.016-0.436 μg m-2 day-1 for compounds in TSP and PM10, respectively. |
Palabras clave : | polycyclic aromatic hydrocarbons TSP PM10 Diagnostic ratios Bus station Dry deposition Diesel emissions |
URI : | http://www.repositorio.ufba.br/ri/handle/ri/5899 |
Fecha de publicación : | 2009 |
Aparece en las colecciones: | Artigo Publicado em Periódico (Química) |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
__www.scielo.br_pdf_jbchs_v20n9_02.pdf | 160,97 kB | Adobe PDF | Visualizar/Abrir |
Los ítems de DSpace están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.