Articles | Volume 24, issue 23
https://doi.org/10.5194/acp-24-13151-2024
https://doi.org/10.5194/acp-24-13151-2024
Measurement report
 | 
29 Nov 2024
Measurement report |  | 29 Nov 2024

Measurement report: Long-term measurements of surface ozone and trends in semi-natural sub-Saharan African ecosystems

Hagninou Elagnon Venance Donnou, Aristide Barthélémy Akpo, Money Ossohou, Claire Delon, Véronique Yoboué, Dungall Laouali, Marie Ouafo-Leumbe, Pieter Gideon Van Zyl, Ousmane Ndiaye, Eric Gardrat, Maria Dias-Alves, and Corinne Galy-Lacaux

Data sets

Trace gases, Banizoumbou, Niger Dungall Laouali et al. https://doi.org/10.25326/608

Trace gases, Katigoubou, Mali Corinne Galy-Lacaux et al. https://doi.org/10.25326/604

Trace gases Agoufou, Mali Corinne Galy-Lacaux et al. https://doi.org/10.25326/610

Trace gases, Bambey, Senegal Corinne Galy-Lacaux et al. https://doi.org/10.25326/609

Trace gases, Dahra, Senegal Corinne Galy-Lacaux et al. https://doi.org/10.25326/606

Trace gases, Lamto, Côte d'Ivoire Corinne Galy-Lacaux et al. https://doi.org/10.25326/275

Trace gases, Bomassa, Congo Corinne Galy-Lacaux et al. https://doi.org/10.25326/607

Trace gases, Mbita, Kenya Corinne Galy-Lacaux et al. https://doi.org/10.25326/642

Trace gases, Djougou, Benin Aristide Akpo et al. https://doi.org/10.25326/605

Trace gases, Zoétélé, Cameroon Marie-Roumy Ouafo-Leumbe https://doi.org/10.25326/603

Trace gases, Louis Trichardt, South Africa Pieter Gideon van Zyl et al. https://doi.org/10.25326/646

Trace gases, Skukuza, South Africa Pieter Gideon van Zyl et al. https://doi.org/10.25326/645

Trace gases, Cape Point, South Africa Pieter Gideon van Zyl et al. https://doi.org/10.25326/644

Trace gases, Amersfoort, South Africa Pieter Gideon van Zyl et al. https://doi.org/10.25326/647

ERA5: The Fifth Generation ECMWF Atmospheric Reanalysis of the Global Climate European Centre for Medium-Range Weather Forecasts (ECMWF) https://climate.copernicus.eu/climate-reanalysis

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Short summary
Ozone is a secondary air pollutant that is detrimental to human and plant health. A better understanding of its chemical evolution is a challenge for Africa, where it is still undersampled. Out of 14 sites examined (1995–2020), high levels of O3 are reported in southern Africa. The dominant chemical processes leading to O3 formation are identified. A decrease in O3 is observed at Katibougou (Mali) and Banizoumbou (Niger), and an increase is found at Zoétélé (Cameroon) and Skukuza (South Africa).
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