Scopus: 84 cites, Web of Science: 78 cites,
Fossil versus contemporary sources of fine elemental and organic carbonaceous particulate matter during the DAURE campaign in Northeast Spain
Minguillon, M. C. (Institut de Diagnosi Ambiental i Estudis de l'Aigua)
Perron, N. (Paul Scherrer Institut. Laboratory of Atmospheric Chemistry)
Querol Carceller, Xavier (Institut de Diagnosi Ambiental i Estudis de l'Aigua)
Szidat, S. (University of Bern. Department of Chemistry and Biochemistry (Suïssa))
S. M. Fahrni (Paul Scherrer Institut. Laboratory of Atmospheric Chemistry)
Alastuey, Andrés (Institut de Diagnosi Ambiental i Estudis de l'Aigua)
Jiménez, J. L. (University of Colorado. Department of Chemistry and Biochemistry)
Mohr, C. (Paul Scherrer Institut. Laboratory of Atmospheric Chemistry)
Ortega, A. M. (University of Colorado. Department of Atmospheric and Oceanic Science)
Day, D. A. (University of Colorado. Department of Chemistry and Biochemistry)
Lanz, V. A. (Paul Scherrer Institut. Laboratory of Atmospheric Chemistry)
Wacker, L. (Laboratory of Ion Beam Physics, ETH Honggerberg (Suïssa))
Reche Andúgar, Cristina (Institut de Diagnosi Ambiental i Estudis de l'Aigua)
Cusack, Michael (Institut de Diagnosi Ambiental i Estudis de l'Aigua)
Amato, F. (Institut de Diagnosi Ambiental i Estudis de l'Aigua)
Kiss, G. (University of Pannonia, Air Chemistry Group of the Hungarian Academy of Sciences)
Hoffer, A. (University of Pannonia, Air Chemistry Group of the Hungarian Academy of Sciences)
Decesari, S. (Istituto di Scienze dell'Atmosfera e del Clima)
Moretti, F. (Istituto di Scienze dell'Atmosfera e del Clima)
Hillamo, R. (Finnish Meteorological Institute, Air Quality Research, (Finlandia))
Teinilä, K. (Finnish Meteorological Institute, Air Quality Research, (Finlandia))
Seco Guix, Roger (Centre de Recerca Ecològica i Aplicacions Forestals)
Peñuelas, Josep (Centre de Recerca Ecològica i Aplicacions Forestals)
Metzger, A. (Innsbruck University. Institute of Ion Physics and Applied Physics)
Schallhart, S. (Innsbruck University. Institute of Ion Physics and Applied Physics)
Muller, M. (Innsbruck University. Institute of Ion Physics and Applied Physics)
Hansel, A. (Innsbruck University. Institute of Ion Physics and Applied Physics)
Burkhart, J. F. (Norwegian Institute for Air Research (Norway))
Baltensperger, U. (Paul Scherrer Institut. Laboratory of Atmospheric Chemistry)
Prévôt, A. S. H. (Paul Scherrer Institut. Laboratory of Atmospheric Chemistry)

Data: 2011
Resum: We present results from the international field campaign DAURE (Determination of the sources of atmospheric Aerosols in Urban and Rural Environments in the Western Mediterranean), with the objective of apportioning the sources of fine carbonaceous aerosols. Submicron fine particulate matter (PM₁) samples were collected during February–March 2009 and July 2009 at an urban background site in Barcelona (BCN) and at a forested regional background site in Montseny (MSY). We present radiocarbon (¹⁴C) analysis for elemental and organic carbon (EC and OC) and source apportionment for these data. We combine the results with those from component analysis of aerosol mass spectrometer (AMS) measurements, and compare to levoglucosan-based estimates of biomass burning OC, source apportionment of filter data with inorganic composition + EC + OC, submicron bulk potassium (K) concentrations, and gaseous acetonitrile concentrations. At BCN, 87 % and 91 % of the EC on average, in winter and summer, respectively, had a fossil origin, whereas at MSY these fractions were 66 % and 79 %. The contribution of fossil sources to organic carbon (OC) at BCN was 40 % and 48 %, in winter and summer, respectively, and 31 % and 25 % at MSY. The combination of results obtained using the ¹⁴C technique, AMS data, and the correlations between fossil OC and fossil EC imply that the fossil OC at Barcelona is ∼47 % primary whereas at MSY the fossil OC is mainly secondary (∼85 %). Day-to-day variation in total carbonaceous aerosol loading and the relative contributions of different sources predominantly depended on the meteorological transport conditions. The estimated biogenic secondary OC at MSY only increased by ∼40 % compared to the order-of-magnitude increase observed for biogenic volatile organic compounds (VOCs) between winter and summer, which highlights the uncertainties in the estimation of that component. Biomass burning contributions estimated using the 14C technique ranged from similar to slightly higher than when estimated using other techniques, and the different estimations were highly or moderately correlated. Differences can be explained by the contribution of secondary organic matter (not included in the primary biomass burning source estimates), and/or by an overestimation of the biomass burning OC contribution by the ¹⁴C technique if the estimated biomass burning EC/OC ratio used for the calculations is too high for this region. Acetonitrile concentrations correlate well with the biomass burning EC determined by ¹⁴C. K is a noisy tracer for biomass burning.
Nota: Número d'acord de subvenció EC/FP6/36833
Nota: Número d'acord de subvenció EC/FP7/610028
Nota: Número d'acord de subvenció MICINN/CGL2007-30502-E/CLI
Nota: Número d'acord de subvenció MINECO/CSD2007-00067
Nota: Número d'acord de subvenció MICINN/CSD2008-00040
Nota: Número d'acord de subvenció MICINN/CGL2010-19464/CLI
Nota: Número d'acord de subvenció MICINN/CGL2010-17172
Drets: 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
Llengua: Anglès
Document: article ; recerca ; publishedVersion
Publicat a: Atmospheric chemistry and physics, Vol. 11, issue 23 (Des. 2011) , p. 12067-12084, ISSN 1680-7316

DOI: 10.5194/acp-11-12067-2011


18 p, 418.6 KB

El registre apareix a les col·leccions:
Documents de recerca > Documents dels grups de recerca de la UAB > Centres i grups de recerca (producció científica) > Ciències > CREAF (Centre de Recerca Ecològica i d'Aplicacions Forestals) > Imbalance-P
Articles > Articles de recerca
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 Registre creat el 2018-02-14, darrera modificació el 2018-05-31



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