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Formation of Highly Oxygenated Organic Molecules from $\alpha$-Pinene Ozonolysis: Chemical Characteristics, Mechanism, and Kinetic Model Development
/ Molteni, Ugo (PSI, Villigen) ; Simon, Mario (Frankfurt U.) ; Heinritzi, Martin (Frankfurt U.) ; Hoyle, Christopher R (PSI, Villigen) ; Bernhammer, Anne-Kathrin (Ionicon GesmbH, Innsbruck) ; Bianchi, Federico (Helsinki U.) ; Breitenlechner, Martin (Innsbruck U.) ; Brilke, Sophia (Frankfurt U.) ; Dias, António (Lisbon U.) ; Duplissy, Jonathan (Helsinki U. ; Helsinki Inst. of Phys.) et al.
Terpenes are emitted by vegetation, and their oxidation in the
atmosphere is an important source of secondary organic aerosol (SOA). A part of
this oxidation can proceed through an autoxidation process, yielding highly
oxygenated organic molecules (HOMs) with low saturation vapor pressure. [...]
2019 - 11 p.
- Published in : ACS Earth and Space Chemistry 3 (2019) 873-883
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2.
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Molecular understanding of new-particle formation from $\alpha$-pinene between −50 and +25 °C
/ Simon, Mario (Frankfurt U.) ; Dada, Lubna (Helsinki U.) ; Heinritzi, Martin (Frankfurt U.) ; Scholz, Wiebke (Innsbruck U.) ; Stolzenburg, Dominik (Vienna U.) ; Fischer, Lukas (Innsbruck U.) ; Wagner, Andrea C (Frankfurt U. ; U. Colorado, Boulder) ; Kürten, Andreas (Frankfurt U.) ; Rörup, Birte (Helsinki U.) ; He, Xu-Cheng (Helsinki U.) et al.
Highly oxygenated organic molecules (HOMs)
contribute substantially to the formation and growth of atmospheric aerosol particles, which affect air quality, human
health and Earth’s climate. HOMs are formed by rapid, gasphase autoxidation of volatile organic compounds (VOCs)
such as α-pinene, the most abundant monoterpene in the atmosphere. [...]
2020 - 25 p.
- Published in : Atmos. Chem. Phys. 20 (2020) 9183-9207
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3.
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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
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4.
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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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5.
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Multicomponent new particle formation from sulfuric acid, ammonia, and biogenic vapors
/ Lehtipalo, Katrianne (U. Helsinki (main) ; PSI, Villigen ; Finnish Meteorological Inst.) ; Yan, Chao (U. Helsinki (main)) ; Dada, Lubna (U. Helsinki (main)) ; Bianchi, Federico (U. Helsinki (main)) ; Xiao, Mao (PSI, Villigen) ; Wagner, Robert (U. Helsinki (main)) ; Stolzenburg, Dominik (Vienna U.) ; Ahonen, Lauri R (U. Helsinki (main)) ; Amorim, Antonio (Lisbon, CENTRA ; Lisbon U.) ; Baccarini, Andrea (PSI, Villigen) et al.
A major fraction of atmospheric aerosol particles, which affect both air quality and climate, form from gaseous precursors in the atmosphere. Highly oxygenated organic molecules (HOMs), formed by oxidation of biogenic volatile organic compounds, are known to participate in particle formation and growth. [...]
2018 - 10 p.
- Published in : Sci. Adv. 4 (2018) eaau5363
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The role of ions in new particle formation in the CLOUD chamber
/ Wagner, Robert ; Yan, Chao ; Lehtipalo, Katrianne ; Duplissy, Jonathan ; Nieminen, Tuomo ; Kangasluoma, Juha ; Ahonen, Lauri R ; Dada, Lubna ; Kontkanen, Jenni ; Manninen, Hanna E (CERN) et al.
The formation of secondary particles in the atmosphere accounts for more than half of global cloud condensation nuclei. Experiments at the CERN CLOUD (Cosmics Leaving OUtdoor Droplets) chamber have underlined the importance of ions for new particle formation, but quantifying their effect in the atmosphere remains challenging. [...]
2017 - 17 p.
- Published in : Atmos. Chem. Phys. 17 (2017) 15181-15197
Fulltext: PDF; External link: Fulltext
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7.
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Influence of temperature on the molecular composition of ions and charged clusters during pure biogenic nucleation
/ Frege, Carla (PSI, Villigen) ; Ortega, Ismael K ; Rissanen, Matti P ; Praplan, Arnaud P ; Steiner, Gerhard ; Heinritzi, Martin ; Ahonen, Lauri ; Amorim, António ; Bernhammer, Anne-Kathrin ; Bianchi, Federico et al.
It was recently shown by the CERN CLOUD experiment that biogenic highly oxygenated molecules (HOMs) form particles under atmospheric conditions in the absence of sulfuric acid, where ions enhance the nucleation rate by 1–2 orders of magnitude. The biogenic HOMs were produced from ozonolysis of α-pinene at 5 °C. [...]
2018 - 15 p.
- Published in : Atmos. Chem. Phys. 18 (2018) 65-79
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8.
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Causes and importance of new particle formation in the present-day and preindustrial atmospheres
/ Gordon, Hamish (Leeds U.) ; Kirkby, Jasper (CERN ; Goethe U., Frankfurt (main)) ; Baltensperger, Urs (PSI, Villigen) ; Bianchi, Federico (Helsinki U.) ; Breitenlechner, Martin (Harvard U. (main)) ; Curtius, Joachim (Goethe U., Frankfurt (main)) ; Dias, Antonio (CERN) ; Dommen, Josef (PSI, Villigen) ; Donahue, Neil M (Carnegie Mellon U.) ; Dunne, Eimear M (Kuopio U.) et al.
New particle formation has been estimated to produce around half of cloud-forming particlesin the present-day atmosphere, via gas-to-particle conversion. Here we assess the importance of newparticle formation (NPF) for both the present-day and the preindustrial atmospheres [...]
2017 - 22 p.
- Published in : J. Geophys. Res. 122 (2017) 8739-8760
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9.
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Observation of viscosity transition in α-pinene secondary organic aerosol
/ Järvinen, Emma (KIT, Karlsruhe) ; Ignatius, Karoliina (TROPOS, Leibniz) ; Nichman, Leonid (Manchester U.) ; Kristensen, Thomas B (TROPOS, Leibniz) ; Fuchs, Claudia (PSI, Villigen) ; Hoyle, Christopher R (PSI, Villigen ; Davos Observ.) ; Höppel, Niko (KIT, Karlsruhe) ; Corbin, Joel C (PSI, Villigen) ; Craven, Jill (Caltech) ; Duplissy, Jonathan (Helsinki U.) et al.
Under certain conditions, secondary organic aerosol (SOA) particles can exist in the atmosphere in an amorphous solid or semi-solid state. To determine their relevance to processes such as ice nucleation or chemistry occurring within particles requires knowledge of the temperature and relative humidity (RH) range for SOA to exist in these states. [...]
2016 - 16 p.
- Published in : Atmosph. Chem. Phys. 16 (2016) 4423-4438
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10.
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Heterogeneous ice nucleation of viscous secondary organic aerosol produced from ozonolysis of α-pinene
/ Ignatius, Karoliina (TROPOS, Leibniz) ; Kristensen, Thomas B (TROPOS, Leibniz) ; Järvinen, Emma (KIT, Karlsruhe) ; Nichman, Leonid (Manchester U.) ; Fuchs, Claudia (PSI, Villigen) ; Gordon, Hamish (CERN) ; Herenz, Paul (KIT, Karlsruhe) ; Hoyle, Christopher R (PSI, Villigen ; Davos Observ.) ; Duplissy, Jonathan (Helsinki U.) ; Garimella, Sarvesh (MIT) et al.
There are strong indications that particles containing secondary organic aerosol (SOA) exhibit amorphous solid or semi-solid phase states in the atmosphere. This may facilitate heterogeneous ice nucleation and thus influence cloud properties. [...]
2016 - 15 p.
- Published in : Atmosph. Chem. Phys. 16 (2016) 6495-6509
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