Journal cover Journal topic
Atmospheric Chemistry and Physics An interactive open-access journal of the European Geosciences Union
Journal topic

Journal metrics

IF value: 5.414
IF5.414
IF 5-year value: 5.958
IF 5-year
5.958
CiteScore value: 9.7
CiteScore
9.7
SNIP value: 1.517
SNIP1.517
IPP value: 5.61
IPP5.61
SJR value: 2.601
SJR2.601
Scimago H <br class='widget-line-break'>index value: 191
Scimago H
index
191
h5-index value: 89
h5-index89
Volume 11, issue 23
Atmos. Chem. Phys., 11, 12499–12515, 2011
https://doi.org/10.5194/acp-11-12499-2011
© Author(s) 2011. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue: European Integrated Project on Aerosol-Cloud-Climate and Air...

Atmos. Chem. Phys., 11, 12499–12515, 2011
https://doi.org/10.5194/acp-11-12499-2011
© Author(s) 2011. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 13 Dec 2011

Research article | 13 Dec 2011

Sources and atmospheric processing of organic aerosol in the Mediterranean: insights from aerosol mass spectrometer factor analysis

L. Hildebrandt1, E. Kostenidou2, V. A. Lanz3, A. S. H. Prevot3, U. Baltensperger3, N. Mihalopoulos2,4, A. Laaksonen5,6, N. M. Donahue1, and S. N. Pandis1,2 L. Hildebrandt et al.
  • 1Center for Atmospheric Particle Studies, Carnegie Mellon University, Pittsburgh, PA, USA
  • 2Institute of Chemical Engineering and High Temperature Chemical Processes (ICE-HT), Foundation of Research and Technology (FORTH), Patra, Greece
  • 3Laboratory of Atmospheric Chemistry, Paul Scherrer Institut, Villigen, Switzerland
  • 4Environmental Chemical Processes Laboratory (ECPL), University of Crete, Heraklion, Greece
  • 5Department of Applied Physics, University of Eastern Finland, Kuopio, Finland
  • 6Finnish Meteorological Institute, Helsinki, Finland

Abstract. Atmospheric particles were measured in the late winter (25 February–26 March 2009) at a remote coastal site on the island of Crete, Greece during the Finokalia Aerosol Measurement Experiment-2009. A quadrupole aerosol mass spectrometer (Q-AMS) was employed to quantify the size-resolved chemical composition of non-refractory submicron aerosol, and a thermodenuder was used to analyze the organic aerosol (OA) volatility. Complementary measurements included particle size distributions from a scanning mobility particle sizer, inorganic and organic particle composition from filter analysis, air ion concentrations, O3, NOx and NOy concentrations, and meteorological measurements. Factor analysis was performed on the OA mass spectra, and the variability in OA composition could best be explained with three OA components. The oxygenated organic aerosol (OOA) was similar in composition and volatility to the summertime OA previously measured at this site and may represent an effective endpoint in particle-phase oxidation of organics. The two other OA components, one associated with amines (Amine-OA) and the other probably associated with the burning of olive branches (OB-OA), had very low volatility but were less oxygenated. Hydrocarbon-like organic aerosol (HOA) was not detected. The absence of OB-OA and Amine-OA in the summer data may be due to lower emissions and/or photochemical conversion of these components to OOA.

Publications Copernicus
Download
Citation
Altmetrics
Final-revised paper
Preprint