Scopus: 202 citations, Web of Science: 188 citations,
Identification and quantification of organic aerosol from cooking and other sources in Barcelona using aerosol mass spectrometer data
Mohr, C. (Paul Scherrer Institut. Laboratory of Atmospheric Chemistry)
DeCarlo, P. F. (Paul Scherrer Institut. Laboratory of Atmospheric Chemistry)
Heringa, M. F. (Paul Scherrer Institut. Laboratory of Atmospheric Chemistry)
Chirico, R. (Paul Scherrer Institut. Laboratory of Atmospheric Chemistry)
Slowik, J. G. (Paul Scherrer Institut. Laboratory of Atmospheric Chemistry)
Richter, R. (Paul Scherrer Institut. Laboratory of Atmospheric Chemistry)
Reche Andúgar, Cristina (Institut de Diagnosi Ambiental i Estudis de l'Aigua)
Alastuey, Andrés (Institut de Diagnosi Ambiental i Estudis de l'Aigua)
Querol Carceller, Xavier (Institut de Diagnosi Ambiental i Estudis de l'Aigua)
Seco Guix, Roger (Centre de Recerca Ecològica i Aplicacions Forestals)
Peñuelas, Josep (Centre de Recerca Ecològica i Aplicacions Forestals)
Jiménez, J. L. (University of Colorado. Department of Chemistry and Biochemistry)
Crippa, M. (Paul Scherrer Institut. Laboratory of Atmospheric Chemistry)
Zimmermann, R. (University of Rostock. Institute of Chemistry)
Baltensperger, U. (Paul Scherrer Institut. Laboratory of Atmospheric Chemistry)
Prévot, A. S. H. (Paul Scherrer Institut. Laboratory of Atmospheric Chemistry)

Date: 2012
Abstract: PM1 (particulate matter with an aerodynamic diameter <1 μm) non-refractory components and black carbon were measured continuously together with additional air quality and atmospheric parameters at an urban background site in Barcelona, Spain, during March 2009 (campaign DAURE, Determination of the sources of atmospheric Aerosols in Urban and Rural Environments in the western Mediterranean). Positive matrix factorization (PMF) was conducted on the organic aerosol (OA) data matrix measured by an aerosol mass spectrometer, on both unit mass(UMR) and high resolution (HR) data. Five factors or sources could be identified: LV-OOA (low-volatility oxygenated OA), related to regional, aged secondary OA; SVOOA (semi-volatile oxygenated OA), a fresher oxygenated OA; HOA (hydrocarbon-like OA, related to traffic emissions); BBOA (biomass burning OA) from domestic heating or agricultural biomass burning activities; and COA (cook-ing OA). LV-OOA contributed 28 % to OA, SV-OOA 27 %, COA 17 %, HOA 16 %, and BBOA 11 %. The COA HR spectrum contained substantial signal from oxygenated ions (O:C: 0. 21) whereas the HR HOA spectrum had almost exclusively contributions from chemically reduced ions (O:C:0. 03). If we assume that the carbon in HOA is fossil while that in COA and BBOA is modern, primary OA in Barcelona contains a surprisingly high fraction (59 %) of non-fossil car-bon. This paper presents a method for estimating cooking organic aerosol in ambient datasets based on the fractions of organic mass fragments at m/z 55 and 57: their data points fall into a V-shape in a scatter plot, with strongly influenced HOA data aligned to the right arm and strongly influenced COA data points aligned to the left arm. HR data show that this differentiation is mainly driven by the oxygen-containing ions C₃H₃O+ and C₃H₅O+, even though their contributions to m/z 55 and 57 are low compared to the reduced ions C₄H+₇ and C₄H+₉. A simple estimation method based on the markers m/z 55, 57, and 44 is developed here and allows for a first-order-estimation of COA in urban air. This study emphasizes the importance of cooking activities for ambient air quality and confirms the importance of chemical composition measurements with a high mass and time resolution.
Note: Número d'acord de subvenció EC/FP7/610028
Note: Número d'acord de subvenció EC/FP6/036833-2
Note: Número d'acord de subvenció MICINN/CGL2007-30502-E/CLI
Note: Número d'acord de subvenció MICINN/CGL2010-17172
Note: Número d'acord de subvenció MICINN/CSD2008-00040
Rights: Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original. Creative Commons
Language: Anglès.
Document: article ; recerca ; publishedVersion
Published in: Atmospheric chemistry and physics, Vol. 12, issue 4 (Feb. 2012) , p. 1649-1665, ISSN 1680-7316

DOI: 10.5194/acp-12-1649-2012


17 p, 2.3 MB

The record appears in these collections:
Research literature > UAB research groups literature > Research Centres and Groups (scientific output) > Experimental sciences > CREAF (Centre de Recerca Ecològica i d'Aplicacions Forestals) > Imbalance-P
Articles > Research articles
Articles > Published articles

 Record created 2018-01-29, last modified 2018-10-20



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