Journal
CHEMOSPHERE
Volume 68, Issue 3, Pages 472-478Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.chemosphere.2006.12.089
Keywords
PAH; n-alkanes; urban air; gas-particle partitioning; source apportionment
Categories
Ask authors/readers for more resources
Air samples were collected in an urban and industrialised area of Prato (Italy) during 2002, as part of a study to identify and measure aliphatic hydrocarbons and polycyclic aromatic hydrocarbons (PAHs). Total concentrations of aliphatic hydrocarbons ranged between 170 and 282 ng m(-3) in the gas phase and from 48.9 to 276 ng m(-3) in the particulate phase. The average total PAH concentrations (gas + particulate) were 59.4 +/- 26.5 ng m(-3), and both gas and particulate phase PAH concentrations decreased with increasing temperature. Source identification using diagnostic ratios and principal component analysis identified automobile traffic, in particular, the strong influence of diesel fuel burning, as the major PAH source. Gas-particle partition coefficients (K-p's) of n-alkane and PAHs were well correlated with the sub-cooled liquid vapour pressure (P-L(0)) and indicate stronger sorption of PAHs to aerosol particles compared with n-alkanes. (c) 2006 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available