Articles | Volume 25, issue 16
https://doi.org/10.5194/acp-25-9275-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-25-9275-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
26 Aug 2025
Research article |
| 26 Aug 2025
| 26 Aug 2025
Photochemical aging of aviation emissions: transformation of chemical and physical properties of exhaust emissions from a laboratory-scale jet engine combustion chamber
Dept. of Environmental and Biological Sciences, University of Eastern Finland, 70211 Kuopio, Finland
Mika Ihalainen
Dept. of Environmental and Biological Sciences, University of Eastern Finland, 70211 Kuopio, Finland
Deeksha Shukla
Analytical Chemistry, University of Rostock, 18059 Rostock, Germany
Helmholtz Zentrum München, 85764 Neuherberg, Germany
Marius Rohkamp
Dept. of Mechanical Engineering, University of the Bundeswehr Munich, 85579 Neubiberg, Germany
Arya Mukherjee
Dept. of Environmental and Biological Sciences, University of Eastern Finland, 70211 Kuopio, Finland
Quanfu He
Institute of Climate and Energy Systems, ICE-3: Troposphere, Forschungszentrum Jülich, 52425 Jülich, Germany
Sandra Piel
Analytical Chemistry, University of Rostock, 18059 Rostock, Germany
Helmholtz Zentrum München, 85764 Neuherberg, Germany
Aki Virkkula
Finnish Meteorological Institute, 00101 Helsinki, Finland
Delun Li
Finnish Meteorological Institute, 00101 Helsinki, Finland
Tuukka Kokkola
Dept. of Environmental and Biological Sciences, University of Eastern Finland, 70211 Kuopio, Finland
Seongho Jeong
Helmholtz Zentrum München, 85764 Neuherberg, Germany
Dept. of Mechanical Engineering, University of the Bundeswehr Munich, 85579 Neubiberg, Germany
Hanna Koponen
Dept. of Environmental and Biological Sciences, University of Eastern Finland, 70211 Kuopio, Finland
Uwe Etzien
Analytical Chemistry, University of Rostock, 18059 Rostock, Germany
Anusmita Das
Helmholtz Zentrum München, 85764 Neuherberg, Germany
Krista Luoma
Finnish Meteorological Institute, 00101 Helsinki, Finland
Lukas Schwalb
Helmholtz Zentrum München, 85764 Neuherberg, Germany
Thomas Gröger
Helmholtz Zentrum München, 85764 Neuherberg, Germany
Institute of Combustion Technology, German Aerospace Center (DLR), 70569 Stuttgart, Germany
Alexandre Barth
Dept. of Environmental Sciences, University of Basel, 4056 Basel, Switzerland
Martin Sklorz
Helmholtz Zentrum München, 85764 Neuherberg, Germany
Thorsten Streibel
Analytical Chemistry, University of Rostock, 18059 Rostock, Germany
Hendryk Czech
Analytical Chemistry, University of Rostock, 18059 Rostock, Germany
Helmholtz Zentrum München, 85764 Neuherberg, Germany
Benedikt Gündling
Dept. of Mechanical Engineering, University of the Bundeswehr Munich, 85579 Neubiberg, Germany
Markus Kalberer
Dept. of Environmental Sciences, University of Basel, 4056 Basel, Switzerland
Bert Buchholz
Analytical Chemistry, University of Rostock, 18059 Rostock, Germany
Andreas Hupfer
Dept. of Mechanical Engineering, University of the Bundeswehr Munich, 85579 Neubiberg, Germany
Thomas Adam
Dept. of Mechanical Engineering, University of the Bundeswehr Munich, 85579 Neubiberg, Germany
Thorsten Hohaus
Institute of Climate and Energy Systems, ICE-3: Troposphere, Forschungszentrum Jülich, 52425 Jülich, Germany
Johan Øvrevik
Norwegian Institute of Public Health, 0213 Oslo, Norway
Dept. of Biosciences, University of Oslo, 0316 Oslo, Norway
Ralf Zimmermann
Analytical Chemistry, University of Rostock, 18059 Rostock, Germany
Helmholtz Zentrum München, 85764 Neuherberg, Germany
Olli Sippula
CORRESPONDING AUTHOR
Dept. of Environmental and Biological Sciences, University of Eastern Finland, 70211 Kuopio, Finland
Department of Chemistry and Sustainable Technology, University of Eastern Finland, 80101 Joensuu, Finland
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Short summary
Photochemical reactions altered the properties of kerosene-operated jet engine burner exhaust emissions, which were studied in a laboratory using an oxidation flow reactor. Particle mass increased 300-fold as particles and gases became more oxidized. Light absorption increased, but the total direct radiative forcing efficiency was estimated to have shifted from positive to negative. The results highlight the importance of considering secondary aerosol formation when assessing the impacts of aviation.
Photochemical reactions altered the properties of kerosene-operated jet engine burner exhaust...
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