Articles | Volume 26, issue 15
https://doi.org/10.5194/acp-26-10727-2026
© Author(s) 2026. 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-26-10727-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
03 Aug 2026
Research article |
| 03 Aug 2026
| 03 Aug 2026
Southern African dust aerosols are rich in micronutrients, K-feldspar and carbonate minerals
Clarissa Baldo
CORRESPONDING AUTHOR
Université Paris Cité and Univ Paris Est Créteil, CNRS, LISA, 75013 Paris, France
Servanne Chevaillier
Université Paris Cité and Univ Paris Est Créteil, CNRS, LISA, 75013 Paris, France
Sophie Nowak
Université Paris Cité, CNRS, ITODYS, Paris 75013, France
Gael Noyalet
Université Paris Cité and Univ Paris Est Créteil, CNRS, LISA, 75013 Paris, France
Sandra Lafon
Université Paris Cité and Univ Paris Est Créteil, CNRS, LISA, 75013 Paris, France
Claudia Di Biagio
Université Paris Cité and Univ Paris Est Créteil, CNRS, LISA, 75013 Paris, France
Amelie Chaput
Department of Geography, Université de Montréal, Montréal, H2V0B3, Canada
now at: Department of Civil and Environmental Engineering, National University of Singapore, 117576, Singapore, Singapore
James King
Department of Geography, Université de Montréal, Montréal, H2V0B3, Canada
Mathieu Cazaunau
Univ Paris Est Créteil and Université Paris Cité, CNRS, LISA, 94010 Créteil, France
Edouard Pangui
Univ Paris Est Créteil and Université Paris Cité, CNRS, LISA, 94010 Créteil, France
Jean-Francois Doussin
Univ Paris Est Créteil and Université Paris Cité, CNRS, LISA, 94010 Créteil, France
Remi Stanus
Laboratoire G-Time, Département Géosciences, Environnement et Société (DGES), Université Libre de Bruxelles (ULB), Av. F. Roosevelt, 50 (CP 160/02), Brussels, 1050, Belgium
Archaeology, Environmental Changes and Geo-Chemistry Research Group, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium
Nadine Mattielli
Laboratoire G-Time, Département Géosciences, Environnement et Société (DGES), Université Libre de Bruxelles (ULB), Av. F. Roosevelt, 50 (CP 160/02), Brussels, 1050, Belgium
Heleen C. Vos
Department of Earth Sciences, Stellenbosch University, 7600 Stellenbosch, South Africa
Department of Environmental Sciences, University of Basel, 4056 Basel, Switzerland
Gregory S. Okin
Department of Geography, University of California – Los Angeles, Los Angeles, California, USA
Brigitte Language
Unit for Environmental Sciences and Management, North-West University, Potchefstroom 2520, South Africa
Tjaart Van Der Walt
Unit for Environmental Sciences and Management, North-West University, Potchefstroom 2520, South Africa
Stuart Piketh
Unit for Environmental Sciences and Management, North-West University, Potchefstroom 2520, South Africa
Karine Desboeufs
Université Paris Cité and Univ Paris Est Créteil, CNRS, LISA, 75013 Paris, France
Akinori Ito
Yokohama Institute for Earth Sciences, JAMSTEC, Yokohama, Kanagawa 236-0001, Japan
Silvia Becagli
Department of Chemistry “Ugo Schiff”, University of Florence, Florence, Italy
Eugene Marais
Gobabeb Namib Research Institute, Walvis Bay, Namibia
Laurie Barrier
Institut de physique du globe de Paris, Université Paris Cité, UMR CNRS 7154, 1 rue Jussieu, 75005 Paris, France
Stéphane Jacquemoud
Institut de physique du globe de Paris, Université Paris Cité, UMR CNRS 7154, 1 rue Jussieu, 75005 Paris, France
Paola Formenti
Université Paris Cité and Univ Paris Est Créteil, CNRS, LISA, 75013 Paris, France
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Short summary
Our results show that crustal element ratios and clay contents distinguish dust aerosols from arid western coastal areas and humid eastern inland regions in Southern Africa. This dust contains key micronutrients that can become bioaccessible during atmospheric transport to nearby and remote marine ecosystems. It is also enriched in carbonates and K-feldspar, serving as a source of cloud condensation and ice nuclei, with potential implications ranging from regional to sub-hemispheric scales.
Our results show that crustal element ratios and clay contents distinguish dust aerosols from...
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