Overview of the ACMCC particulate organonitrates (pON) intercomparison

Alexandre Albinet (1) , Jean-Eudes Petit , Andrew Lambe , Athina Kalogridis , Liine Heikkinen , Frans Graeffe , Manuela Cirtog , Anais Feron , James Allan , Zainab Bibi , Tanguy Amodeo (1) , Nicolas Karoski (1) , Robin Aujay (1) , Laurent Meunier (1) , Camille Noblet (1) , François Lestremau (1) , Jean-Luc Besombes , Valérie Gros , Nicolas Bonnaire , Roland Sarda-Esteve , François Truong , Mikael Ehn , Tuija Jokinen , M. Aurela , Marek Maasikmets , Christina Marin , Luminita Marmureanu , Axel Eriksson , Erik Ahlberg , Evelyne Freney , Maria Cruz Minguillon , Philip Croteau , John Jayne , Leah Williams , Olivier Favez (1)

1 INERIS - Institut National de l'Environnement Industriel et des Risques

Particulate organonitrates (pON) account for significant fraction (5-80% by mass) of total OA in ambient air. They are formed from the reactions of volatile organic compounds (VOCs) with atmospheric oxidants (OH/NO3 radicals) and NOx. Their quantification can be achieved using aerosol mass spectrometry (AMS), based on the characteristic mass fragment ratio (NO2+/NO+) allowing the distinction from inorganic nitrate. However, the accuracy of the low-resolution aerosol chemical speciation monitor (ACSM) to determine pON has not yet been evaluated. At the Aerosol Chemical Monitor Calibration Centre (AMCC), an intercomparison for the measurements of pON has been performed in order to obtain a stable and constant generation of pON, so to compare simultaneously the response of nine different AMS/ACSM systems (long-TOF-AMS vs ACSMs; Quads vs TOFs; standard vs capture vaporizers), as well as to investigate the pON physical properties and chemical composition...

Mots clés: ORGANONITRATES; SECONDARY ORGANIC AEROSOL (SOA); ACSM; OXIDATION FLOW REACTOR (OFR)

Domaines: Sciences de l'environnement

Alexandre Albinet, Jean-Eudes Petit, Andrew Lambe, Athina Kalogridis, Liine Heikkinen, et al.. Overview of the ACMCC particulate organonitrates (pON) intercomparison. European Aerosol Conference (EAC 2019), Aug 2019, Gothenburg, Sweden. ⟨ineris-03237749⟩