Articles | Volume 23, issue 22
https://doi.org/10.5194/acp-23-14349-2023
https://doi.org/10.5194/acp-23-14349-2023
Research article
 | 
20 Nov 2023
Research article |  | 20 Nov 2023

Sources and long-term variability of carbon monoxide at Mount Kenya and in Nairobi

Leonard Kirago, Örjan Gustafsson, Samuel Mwaniki Gaita, Sophie L. Haslett, Michael J. Gatari, Maria Elena Popa, Thomas Röckmann, Christoph Zellweger, Martin Steinbacher, Jörg Klausen, Christian Félix, David Njiru, and August Andersson

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Short summary
This study provides ground-observational evidence that supports earlier suggestions that savanna fires are the main emitters and modulators of carbon monoxide gas in Africa. Using isotope-based techniques, the study has shown that about two-thirds of this gas is emitted from savanna fires, while for urban areas, in this case Nairobi, primary sources approach 100 %. The latter has implications for air quality policy, suggesting primary emissions such as traffic should be targeted.
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