Articles | Volume 21, issue 2
https://doi.org/10.5194/acp-21-1325-2021
© Author(s) 2021. 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-21-1325-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
01 Feb 2021
Research article |
| 01 Feb 2021
| 01 Feb 2021
Ozonolysis of fatty acid monolayers at the air–water interface: organic films may persist at the surface of atmospheric aerosols
Benjamin Woden
Department of Chemistry, University of Reading, Whiteknights, Reading, RG6 6AD, UK
ISIS Neutron and Muon Source, Science and Technology Facilities
Council, Rutherford Appleton Laboratory, Didcot, OX11 0QX, UK
Maximilian W. A. Skoda
ISIS Neutron and Muon Source, Science and Technology Facilities
Council, Rutherford Appleton Laboratory, Didcot, OX11 0QX, UK
Adam Milsom
School of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
Curtis Gubb
School of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
Armando Maestro
Institut Laue–Langevin (ILL), 71 Avenue des Martyrs, Grenoble, 38000, France
James Tellam
ISIS Neutron and Muon Source, Science and Technology Facilities
Council, Rutherford Appleton Laboratory, Didcot, OX11 0QX, UK
School of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
Department of Meteorology, University of Reading, Whiteknights Road, Reading, RG6 6BG, UK
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Short summary
Atmospheric aerosols contain a large amount of organic compounds, whose oxidation affects their physical properties through a process known as ageing. We have simulated atmospheric ageing experimentally to elucidate the nature and behaviour of residual surface films. Our results show an increasing amount of residue at near-zero temperatures, demonstrating that an inert product film may build up during droplet ageing, even if only ordinarily short-lived reactive species are initially emitted.
Atmospheric aerosols contain a large amount of organic compounds, whose oxidation affects their...
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