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The role of H2SO4-NH3 anion clusters in ion-induced aerosol nucleation mechanisms in the boreal forest
The role of H2SO4-NH3 anion clusters in ion-induced aerosol nucleation mechanisms in the boreal forest The role of H2SO4-NH3 anion clusters in ion-induced aerosol nucleation mechanisms in the boreal... Chao Yan et al.
Chao Yan1, Lubna Dada1, Clémence Rose1, Tuija Jokinen1, Wei Nie1,2, Siegfried Schobesberger1,3, Heikki Junninen1,4, Katrianne Lehtipalo1, Nina Sarnela1, Ulla Makkonen5, Olga Garmash1, Yonghong Wang1, Qiaozhi Zha1, Pauli Paasonen1, Federico Bianchi1, Mikko Sipilä1, Mikael Ehn1, Tuukka Petäjä1,2, Veli-Matti Kerminen1, Douglas R. Worsnop1,6, and Markku Kulmala1,2,7 Chao Yan et al. Chao Yan1, Lubna Dada1, Clémence Rose1, Tuija Jokinen1, Wei Nie1,2, Siegfried Schobesberger1,3, Heikki Junninen1,4, Katrianne Lehtipalo1, Nina Sarnela1, Ulla Makkonen5, Olga Garmash1, Yonghong Wang1, Qiaozhi Zha1, Pauli Paasonen1, Federico Bianchi1, Mikko Sipilä1, Mikael Ehn1, Tuukka Petäjä1,2, Veli-Matti Kerminen1, Douglas R. Worsnop1,6, & Markku Kulmala1,2,7
1Institute for Atmospheric và Earth System Research / Physics,Faculty of Science, University of Helsinki, P. O. Box 64, 00014, Helsinki,Finland 2Joint International Research Laboratory of Atmospheric & EarthSystem Sciences, School of Atmospheric Sciences, Nanjing University,Nanjing, 210046, china 3Department of Applied Physics, University of Eastern Finland, 70211Kuopio, Finland 4Institute of Physics, University of Tartu, Ülikooli 18, 50090 Tartu, Estonia 5Finnish Meteorological Institute, 00560 Helsinki, Finland 6Aerodyne Research, Inc., Billerica, MA 01821, USA 7Aerosol and Haze Laboratory, Beijing Advanced Innovation Center forSoft Matter Science & Engineering, Beijing University of ChemicalTechnology, Beijing, 100029, trung quốc
1Institute for Atmospheric and Earth System Research / Physics,Faculty of Science, University of Helsinki, P. O. Box 64, 00014, Helsinki,Finland 2Joint International Research Laboratory of Atmospheric và EarthSystem Sciences, School of Atmospheric Sciences, Nanjing University,Nanjing, 210046, đài loan trung quốc 3Department of Applied Physics, University of Eastern Finland, 70211Kuopio, Finland 4Institute of Physics, University of Tartu, Ülikooli 18, 50090 Tartu, Estonia 5Finnish Meteorological Institute, 00560 Helsinki, Finland 6Aerodyne Research, Inc., Billerica, MA 01821, USA 7Aerosol và Haze Laboratory, Beijing Advanced Innovation Center forSoft Matter Science và Engineering, Beijing University of ChemicalTechnology, Beijing, 100029, trung quốc
Correspondence: Chao Yan (chao.yan
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helsinki.fi)
New particle formation (NPF) provides a large source ofatmospheric aerosols, which affect the climate and human health. In recent chamber studies, ion-induced nucleation (IIN) has been discovered as an important pathway of formingparticles; however, atmospheric investigationremains incomplete. For this study, we investigated the air anioncompositions in the boreal forest in southern Finland for three consecutive springs, witha special focus on H2SO4-NH3 anion clusters. We foundthat the ratio between the concentrations of highly oxygenated organicmolecules (HOMs) và H2SO4 controlled the appearance ofH2SO4-NH3 clusters (3no.S13): all suchclusters were observed when