Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 24, issue 3
Articles | Volume 24, issue 3
https://doi.org/10.5194/acp-24-2045-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-24-2045-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 24, issue 3
Research article
 | 
16 Feb 2024
Research article |  | 16 Feb 2024

Jet aircraft lubrication oil droplets as contrail ice-forming particles

Joel Ponsonby, Leon King, Benjamin J. Murray, and Marc E. J. Stettler

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Latest update: 23 Oct 2025
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Short summary
Aerosol emissions from aircraft engines contribute to the formation of contrails, which have a climate impact as important as that of aviation’s CO2 emissions. For the first time, we experimentally investigate the freezing behaviour of water droplets formed on jet lubrication oil aerosol. We show that they can activate to form water droplets and discuss their potential impact on contrail formation. Our study has implications for contrails produced by future aircraft engine and fuel technologies.
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