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1.
Potential pre-industrial–like new particle formation induced by pure biogenic organic vapors in Finnish peatland / Huang, Wei (Helsinki U.) ; Junninen, Heikki (Tartu, Inst. Phys.) ; Garmash, Olga (Tampere U. of Tech. ; Washington U., Seattle) ; Lehtipalo, Katrianne (Helsinki U.) ; Stolzenburg, Dominik (TU Vienna) ; Lampilahti, Janne L P (Helsinki U.) ; Ezhova, Ekaterina (Helsinki U.) ; Schallhart, Simon (STUK, Helsinki) ; Rantala, Pekka (Helsinki U.) ; Aliaga, Diego (Helsinki U.) et al.
Pure biogenic new particle formation (NPF) induced by highly oxygenated organic molecules (HOMs) could be an important mechanism for pre-industrial aerosol formation. However, it has not been unambiguously confirmed in the ambient due to the scarcity of truly pristine continental locations in the present-day atmosphere or the lack of chemical characterization of NPF precursors. [...]
2024 - 11 p. - Published in : Sci. Adv. 10 (2024) adm9191 Fulltext: PDF;
2.
Roll vortices induce new particle formation bursts in the planetary boundary layer / Lampilahti, Janne (Helsinki U.) ; Manninen, Hanna Elina (CERN) ; Leino, Katri (Helsinki U.) ; Väänänen, Riikka (Helsinki U.) ; Manninen, Antti (Finnish Meteorological Inst.) ; Mazon, Stephany Buenrostro (Helsinki U.) ; Nieminen, Tuomo (Helsinki U.) ; Leskinen, Matti (Helsinki U.) ; Enroth, Joonas (Helsinki U.) ; Bister, Marja (Helsinki U.) et al.
Recent studies have shown the importance of new particle formation (NPF) to global cloud condensation nuclei (CCN) production, as well as to air pollution in megacities. In addition to the necessary presence of low-volatility vapors that can form new aerosol particles, both numerical and observational studies have shown that the dynamics of the planetary boundary layer (BL) plays an important role in NPF. [...]
2020 - 14 p. - Published in : Atmos. Chem. Phys. 20 (2020) 11841-11854 Fulltext: PDF;
3.
Zeppelin-led study on the onset of new particle formation in the planetary boundary layer / Lampilahti, Janne (Helsinki U.) ; Manninen, Hanna E (CERN) ; Nieminen, Tuomo (Helsinki U.) ; Mirme, Sander (Tartu U.) ; Ehn, Mikael (Helsinki U.) ; Pullinen, Iida (Kuopio U.) ; Leino, Katri (Helsinki U.) ; Schobesberger, Siegfried (Helsinki U. ; Kuopio U.) ; Kangasluoma, Juha (Helsinki U.) ; Kontkanen, Jenni (Helsinki U.) et al.
We compared observations of aerosol particle formation and growth in different parts of the planetary boundary layer at two different environments that have frequent new particle formation (NPF) events. In summer 2012 we had a campaign in Po Valley, Italy (urban background), and in spring 2013 a similar campaign took place in Hyytiälä, Finland (rural background). [...]
2021 - 15 p. - Published in : Atmos. Chem. Phys. 21 (2021) 12649-12663 Fulltext: PDF;
4.
The driving factors of new particle formation and growth in the polluted boundary layer / Xiao, Mao ; Hoyle, Christopher R ; Dada, Lubna ; Stolzenburg, Dominik ; Kürten, Andreas ; Wang, Mingyi ; Lamkaddam, Houssni ; Garmash, Olga ; Mentler, Bernhard ; Molteni, Ugo et al.
New particle formation (NPF) is a significant source of atmospheric particles, affecting climate and air quality. Understanding the mechanisms involved in urban aerosols is important to develop effective mitigation strategies. [...]
2021 - 17 p. - Published in : Atmos. Chem. Phys. 21 (2021) 14275-14291 Fulltext: PDF; Supplement: PDF;
5.
Vertical profiles of sub-3 nm particles over the boreal forest / Leino, Katri (Helsinki U.) ; Lampilahti, Janne (Helsinki U.) ; Poutanen, Pyry (Helsinki U.) ; Väänänen, Riikka (Helsinki U.) ; Manninen, Antti (Helsinki U.) ; Buenrostro Mazon, Stephany (Helsinki U.) ; Dada, Lubna (Helsinki U.) ; Franck, Anna (Helsinki U.) ; Wimmer, Daniela (Helsinki U.) ; Aalto, Pasi P (Helsinki U.) et al.
This work presents airborne observations of sub3 nm particles in the lower troposphere and investigates new particle formation (NPF) within an evolving boundary layer (BL). We studied particle concentrations together with supporting gas and meteorological data inside the planetary BL over a boreal forest site in Hyytiälä, southern Finland. [...]
2019 - 12 p. - Published in : Atmos. Chem. Phys. 19 (2019) 4127-4138 Fulltext: PDF; External link: Fulltext
6.
Molecular understanding of the suppression of new-particle formation by isoprene / Heinritzi, Martin (Frankfurt U.) ; Dada, Lubna (Helsinki U.) ; Simon, Mario (Frankfurt U.) ; Stolzenburg, Dominik (Vienna U.) ; Wagner, Andrea C (Frankfurt U. ; U. Colorado, Boulder) ; Fischer, Lukas (Innsbruck U.) ; Ahonen, Lauri R (Helsinki U.) ; Amanatidis, Stavros (Caltech, Pasadena (main)) ; Baalbaki, Rima (Helsinki U.) ; Baccarini, Andrea (PSI, Villigen) et al.
Nucleation of atmospheric vapours produces more than half of global cloud condensation nuclei and so has an important influence on climate. Recent studies show that monoterpene (C$_{10}$H$_{16}$) oxidation yields highly oxygenated products that can nucleate with or without sulfuric acid. [...]
2020 - 13 p. - Published in : Atmos. Chem. Phys. 20 (2020) 11809-11821
7.
Rapid growth of organic aerosol nanoparticles over a wide tropospheric temperature range / Stolzenburg, Dominik (Vienna U.) ; Fischer, Lukas (Innsbruck U.) ; Vogel, Alexander L (Frankfurt U. ; CERN ; PSI, Villigen) ; Heinritzi, Martin (Frankfurt U.) ; Schervish, Meredith (Carnegie Mellon U.) ; Simon, Mario (Frankfurt U.) ; Wagner, Andrea C (Frankfurt U.) ; Dada, Lubna (Helsinki U.) ; Ahonen, Lauri R (Helsinki U.) ; Amorim, Antonio (Lisbon U. ; CMAF, Lisbon) et al.
Nucleation and growth of aerosol particles from atmospheric vapors constitutes a major source of global cloud condensation nuclei (CCN). The fraction of newly formed particles that reaches CCN sizes is highly sensitive to particle growth rates, especially for particle sizes <10 nm, where coagulation losses to larger aerosol particles are greatest. [...]
2018 - 6 p. - Published in : Proc. Natl. Acad. Sci. U. S. A. 115 (2018) 9122-9127

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1 Lampilahti, Janne L P
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