%0 Journal Article
%T Particle-associated polycyclic aromatic hydrocarbons and their dry deposition fluxes from a bus-station in the Rio de Janeiro metropolitan area, Brazil
%A Machado
%A Mauro C. S.
%A Loyola
%A Josiane
%A Quiterio
%A Simone L.
%A Rocha
%A Gisele O. da
%A Andrade
%A Jailson B. de
%A Arbilla
%A Graciela
%J Journal of the Brazilian Chemical Society
%D 2009
%I Sociedade Brasileira de Qu¨ªmica, SBQ
%R 10.1590/S0103-50532009000900002
%X total particulate matter and pm10 samples were collected from august 2006 to february 2007 in mayor jos¨¦ carlos lacerda bus station. 16 priority pahs compounds emitted by heavy-duty vehicles on typical conditions of operation were analyzed by using gc/ms. ¦Òpah 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 ¦Ìg m-2 day-1 for compounds in tsp and pm10, respectively.
%K polycyclic aromatic hydrocarbons
%K tsp
%K pm10
%K diagnostic ratios
%K bus station
%K dry deposition
%K diesel emissions.
%U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0103-50532009000900002&lng=en&nrm=iso&tlng=en