Articles | Volume 18, issue 20
https://doi.org/10.5194/acp-18-15491-2018
https://doi.org/10.5194/acp-18-15491-2018
Research article
 | 
29 Oct 2018
Research article |  | 29 Oct 2018

Seasonal influences on surface ozone variability in continental South Africa and implications for air quality

Tracey Leah Laban, Pieter Gideon van Zyl, Johan Paul Beukes, Ville Vakkari, Kerneels Jaars, Nadine Borduas-Dedekind, Miroslav Josipovic, Anne Mee Thompson, Markku Kulmala, and Lauri Laakso

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Latest update: 12 Jul 2024
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Short summary
Surface O3 was measured at four sites in the north-eastern interior of South Africa, which revealed that O3 is a regional problem in continental South Africa, with elevated O3 levels found at rural background and industrial sites. Increased O3 concentrations were associated with high CO levels predominantly related to regional biomass burning, while the O3 production regime was established to be predominantly VOC limited. Increased O3 is associated with strong seasonality of precursor sources.
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