Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 25, issue 22
Articles | Volume 25, issue 22
https://doi.org/10.5194/acp-25-15953-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-25-15953-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 25, issue 22
Research article
 | 
18 Nov 2025
Research article |  | 18 Nov 2025

Chemical characterization and source apportionment of fine particulate matter in Kigali, Rwanda, using aerosol mass spectrometry

Theobard Habineza, Allen L. Robinson, H. Langley DeWitt, Jimmy Gasore, Philip L. Croteau, and Albert A. Presto

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Short summary
This study reports year-long PM1 (particulate matter) chemical composition in Eastern Africa using aerosol mass spectrometry. Results show PM is dominated by organic aerosol (73 %), black carbon (16 %), and inorganics (11 %), with BC largely from fossil fuel (59 %) and biomass burning (41 %). Findings highlight the impact of solid fuels and aging vehicles and stress the need for regional mitigation strategies to reduce air pollution-related health risks.
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