European Aerosol Phenomenology -- 8: Harmonised Source Apportionment of Organic Aerosol using 22 Year-long ACSM/AMS Datasets
Creators: name: Chen, Gang
name: Canonaco, Francesco
name: Tobler, Anna
name: Aas, Wenche
name: Alastuey, Andres
name: Allan, James
name: Atabakhsh, Samira
name: Aurela, Minna
name: Baltensperger, Urs
name: Bougiatioti, Aikaterini
name: De Brito, Joel F.
name: Ceburnis, Darius
name: Chazeau, Benjamin
name: Chebaicheb, Hasna
name: Daellenbach, Kaspar R.
name: Ehn, Mikael
name: Haddad, Imad El
name: Eleftheriadis, Konstantinos
name: Favez, Olivier
name: Flentje, Harald
name: Font, Anna
name: Fossum, Kirsten
name: Freney, Evelyn
name: Gini, Maria
name: Green, David C
name: Heikkinen, Liine
name: Herrmann, Hartmut
name: Kalogridis, Athina-Cerise
name: Keernik, Hannes
name: Lhotka, Radek
name: Lin, Chunshui
name: Lunder, Chris
name: Maasikmets, Marek
name: Manousakas, Manousos I.
name: Marchand, Nicolas
name: Marin, Cristina
name: Marmureanu, Luminita
name: Mihalopoulos, Nikolaos
name: Močnik, Griša
name: Nęcki, Jaroslaw
name: O'Dowd, Colin
name: Ovadnevaite, Jurgita
name: Peter, Thomas
name: Petit, Jean-Eudes
name: Pikridas, Michael
name: Platt, Stephen Matthew
name: Pokorná, Petra
name: Poulain, Laurent
name: Priestman, Max
name: Riffault, Véronique
name: Rinaldi, Matteo
name: Różański, Kazimierz
name: Schwarz, Jaroslav
name: Sciare, Jean
name: Simon, Leïla
name: Skiba, Alicja
name: Slowik, Jay G.
name: Sosedova, Yulia
name: Stavroulas, Iasonas
name: Styszko, Katarzyna
name: Teinemaa, Erik
name: Timonen, Hilkka
name: Tremper, Anja
name: Vasilescu, Jeni
name: Via, Marta
name: Vodička, Petr
name: Wiedensohler, Alfred
name: Zografou, Olga
name: Minguillón, María Cruz
name: Prévôt, André S. H.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences
subject: FOS: Physical sciences

description: Organic aerosol (OA) is a key component to total submicron particulate matter (PM1), and comprehensive knowledge of OA sources across Europe is crucial to mitigate PM1 levels. Europe has a well-established air quality research infrastructure from which yearlong datasets using 21 aerosol chemical speciation monitors (ACSMs) and 1 aerosol mass spectrometer (AMS) were gathered during 2013-2019. It includes 9 non-urban and 13 urban sites. This study developed a state-of-the-art source apportionment protocol to analyse long-term OA mass spectrum data by applying the most advanced source apportionment strategies (i.e., rolling PMF, ME-2, and bootstrap). This harmonised protocol enables the quantifications of the most common OA components such as hydrocarbon-like OA (HOA), biomass burning OA (BBOA), cooking-like OA (COA), more oxidised-oxygenated OA (MO-OOA), and less oxidised-oxygenated OA (LO-OOA). Other components such as coal combustion OA (CCOA), solid fuel OA (SFOA: mainly mixture of coal and peat combustion), cigarette smoke OA (CSOA), sea salt (mostly inorganic but part of the OA mass spectrum), coffee OA, and ship industry OA could also be separated at a few specific sites. Oxygenated OA (OOA) components make up most of the submicron OA mass (average = 71.1%, a range of 43.7-100%). Solid fuel combustion-related OA components (i.e., BBOA, CCOA, and SFOA) are still considerable with in total 16.0% yearly contribution to the OA, yet mainly during winter months (21.4%). Overall, this comprehensive protocol works effectively across all sites governed by different sources and generates robust and consistent source apportionment results. Our work presents a comprehensive overview of OA sources in Europe with a unique combination of high time resolution and long-term data coverage (9-36 months), providing essential information to improve/validate air quality, health impact, and climate models.