Modelling organic aerosol concentrations and properties during ChArMEx summer campaigns of 2012 and 2013 in the western Mediterranean region

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dc.contributor.author Chrit, Mounir
dc.contributor.author Sartelet, Karine
dc.contributor.author Sciare, Jean
dc.contributor.author Pey Betrán, Jorge
dc.contributor.author Marchand, Nicolas
dc.contributor.author Couvidat, Florian
dc.contributor.author Sellegri, Karine
dc.contributor.author Beekmann, Matthias
dc.date.accessioned 2020-09-17T15:01:29Z
dc.date.available 2020-09-17T15:01:29Z
dc.date.issued 2017-10-23
dc.identifier.citation Atmospheric Chemistry and Physics, vol.17, n.20, 12509-12531 es_ES
dc.identifier.issn 1680-7324
dc.identifier.uri http://hdl.handle.net/20.500.12468/331
dc.description.abstract In the framework of the Chemistry-Aerosol Mediterranean Experiment, a measurement site was set up at a remote site (Ersa) on Corsica Island in the northwestern Mediterranean Sea. Measurement campaigns performed during the summers of 2012 and 2013 showed high organic aerosol concentrations, mostly from biogenic origin. This work aims to represent the organic aerosol concentrations and properties (oxidation state and hydrophilicity) using the air-quality model Polyphemus with a surrogate approach for secondary organic aerosol (SOA) formation. Biogenic precursors are isoprene, monoterpenes and sesquiterpenes. In this work, the following model oxidation products of monoterpenes are added: (i) a carboxylic acid (MBTCA) to represent multi-generation oxidation products in the low-NOx regime, (ii) organic nitrate chemistry and (iii) extremely low-volatility organic compounds (ELVOCs) formed by ozonolysis. The model shows good agreement of measurements of organic concentrations for both 2012 and 2013 summer campaigns. The modelled oxidation property and hydrophilic organic carbon properties of the organic aerosols also agree reasonably well with the measurements. The influence of the different chemical processes added to the model on the oxidation level of organics is studied. Measured and simulated water-soluble organic carbon (WSOC) concentrations show that even at a remote site next to the sea, about 64 % of the organic carbon is soluble. The concentrations of WSOC vary with the origins of the air masses and the composition of organic aerosols. The marine organic emissions only contribute to a few percent of the organic mass in PM1, with maxima above the sea. es_ES
dc.description.sponsorship Centre d'Enseignement et de Recherche en Environnement Atmosphérique, Université Paris-Est, France es_ES
dc.description.sponsorship Laboratoire des Sciences du Climat et de l'Environnement, Centre National de la Recherche Scientifique, France es_ES
dc.description.sponsorship Laboratoire des Sciences du Climat et de l'Environnement, Commissariat à l'Énergie Atomique et aux énergies alternatives, France es_ES
dc.description.sponsorship Laboratoire des Sciences du Climat et de l'Environnement, Université de Versailles Saint-Quentin-en-Yvelines, France es_ES
dc.description.sponsorship Laboratoire des Sciences du Climat et de l'Environnement, Institut Pierre Simon Laplace, France es_ES
dc.description.sponsorship Laboratoire des Sciences du Climat et de l'Environnement, Université Paris-Saclay, France es_ES
dc.description.sponsorship Energy, Environment and Water Research Center, The Cyprus Institute, Cyprus es_ES
dc.description.sponsorship Laboratoire de Chimie de l'Environnement, Aix-Marseille University, France es_ES
dc.description.sponsorship Laboratoire de Chimie de l'Environnement, Centre National de la Recherche Scientifique, France es_ES
dc.description.sponsorship Instituto Geológico y Minero de España, España es_ES
dc.description.sponsorship Institut National de l'Environnement Industriel et des Risques, France es_ES
dc.description.sponsorship Laboratoire de Météorologie Physique, Centre National de la Recherche Scientifique, France es_ES
dc.description.sponsorship Laboratoire Interuniversitaire des Systèmes Atmosphériques, Centre National de la Recherche Scientifique, France es_ES
dc.description.sponsorship Laboratoire Interuniversitaire des Systèmes Atmosphériques, Institut Pierre Simon Laplace, France es_ES
dc.description.sponsorship Laboratoire Interuniversitaire des Systèmes Atmosphériques, Université Paris-Est Créteil, France es_ES
dc.description.sponsorship Laboratoire Interuniversitaire des Systèmes Atmosphériques, Université Paris Diderot, France es_ES
dc.language.iso en es_ES
dc.publisher European Geosciences Union, Copernicus Publications es_ES
dc.relation SAF-MED es_ES
dc.relation ChArMEx es_ES
dc.rights Acceso abierto es_ES
dc.subject aerosol es_ES
dc.subject propiedad química es_ES
dc.subject Región Mediterránea es_ES
dc.subject reacción química es_ES
dc.subject carbono orgánico es_ES
dc.title Modelling organic aerosol concentrations and properties during ChArMEx summer campaigns of 2012 and 2013 in the western Mediterranean region es_ES
dc.type Postprint es_ES
dc.relation.publisherversion https://acp.copernicus.org/articles/17/12509/2017/ es_ES
dc.description.funder French National Research Agency, Francia es_ES
dc.identifier.doi https://doi.org/10.5194/acp-17-12509-2017 es_ES
dc.coverage.spatialStudy Ersa, Córcega es_ES


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