Articles | Volume 21, issue 23
https://doi.org/10.5194/acp-21-17373-2021
© 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-21-17373-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Measurement report
| 
01 Dec 2021
Measurement report |
| 01 Dec 2021
| 01 Dec 2021
Measurement report: Observation-based formaldehyde production rates and their relation to OH reactivity around the Arabian Peninsula
Department of Atmospheric Chemistry, Max Planck Institute for Chemistry, Mainz, Germany
John N. Crowley
Department of Atmospheric Chemistry, Max Planck Institute for Chemistry, Mainz, Germany
Efstratios Bourtsoukidis
Climate and Atmosphere Research Centre, The Cyprus Institute, Nicosia, Cyprus
Achim Edtbauer
Department of Atmospheric Chemistry, Max Planck Institute for Chemistry, Mainz, Germany
Philipp G. Eger
Department of Atmospheric Chemistry, Max Planck Institute for Chemistry, Mainz, Germany
Lisa Ernle
Department of Atmospheric Chemistry, Max Planck Institute for Chemistry, Mainz, Germany
Hartwig Harder
Department of Atmospheric Chemistry, Max Planck Institute for Chemistry, Mainz, Germany
Bettina Hottmann
Department of Atmospheric Chemistry, Max Planck Institute for Chemistry, Mainz, Germany
Monica Martinez
Department of Atmospheric Chemistry, Max Planck Institute for Chemistry, Mainz, Germany
Uwe Parchatka
Department of Atmospheric Chemistry, Max Planck Institute for Chemistry, Mainz, Germany
Jean-Daniel Paris
Laboratoire des Sciences du Climat et de l'Environnement, CEA-CNRS-UVSQ, UMR8212, IPSL, Gif-sur-Yvette, France
Climate and Atmosphere Research Centre, The Cyprus Institute, Nicosia, Cyprus
Eva Y. Pfannerstill
Department of Atmospheric Chemistry, Max Planck Institute for Chemistry, Mainz, Germany
Roland Rohloff
Department of Atmospheric Chemistry, Max Planck Institute for Chemistry, Mainz, Germany
Jan Schuladen
Department of Atmospheric Chemistry, Max Planck Institute for Chemistry, Mainz, Germany
Christof Stönner
Department of Atmospheric Chemistry, Max Planck Institute for Chemistry, Mainz, Germany
Ivan Tadic
Department of Atmospheric Chemistry, Max Planck Institute for Chemistry, Mainz, Germany
Sebastian Tauer
Department of Atmospheric Chemistry, Max Planck Institute for Chemistry, Mainz, Germany
Nijing Wang
Department of Atmospheric Chemistry, Max Planck Institute for Chemistry, Mainz, Germany
Jonathan Williams
Department of Atmospheric Chemistry, Max Planck Institute for Chemistry, Mainz, Germany
Climate and Atmosphere Research Centre, The Cyprus Institute, Nicosia, Cyprus
Jos Lelieveld
Department of Atmospheric Chemistry, Max Planck Institute for Chemistry, Mainz, Germany
Climate and Atmosphere Research Centre, The Cyprus Institute, Nicosia, Cyprus
Horst Fischer
CORRESPONDING AUTHOR
Department of Atmospheric Chemistry, Max Planck Institute for Chemistry, Mainz, Germany
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Latest update: 08 Nov 2025
Short summary
We present the first ship-based in situ measurements of formaldehyde (HCHO), hydroxyl radicals (OH) and the OH reactivity around the Arabian Peninsula. Regression analysis of the HCHO production rate and the related OH chemistry revealed the regional HCHO yield αeff, which represents the different chemical regimes encountered. Highest values were found for the Arabian Gulf (also known as the Persian Gulf), which highlights this region as a hotspot of photochemical air pollution.
We present the first ship-based in situ measurements of formaldehyde (HCHO), hydroxyl radicals...
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