Organic vapors from Savannah and European Boreal fire emissions: insights from photochemical and dark aging experiments in a smog chamber

Shukla, Deeksha; Vettikkat, Lejish; Ihalainen, Mika; Somero, Markus; Czech, Hendryk; Schobesberger, Siegfried; Buchholz, Angela; Pullinen, Iida; Jaars, Kerneels; Köster, Kajar; Le, Viet; Yli-Pirilä, Pasi; Siebert, Stefan J.; van Zyl, Pieter G.; Virtanen, Annele; Vakkari, Ville; Sippula, Olli; Zimmermann, Ralf

doi:10.5194/acp-26-12977-2026

Articles | Volume 26, issue 17

https://doi.org/10.5194/acp-26-12977-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-26-12977-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 26, issue 17

Research article

|

14 Sep 2026

Research article |

| 14 Sep 2026

Organic vapors from Savannah and European Boreal fire emissions: insights from photochemical and dark aging experiments in a smog chamber

Deeksha Shukla, Lejish Vettikkat, Mika Ihalainen, Markus Somero, Hendryk Czech, Siegfried Schobesberger, Angela Buchholz, Iida Pullinen, Kerneels Jaars, Kajar Köster, Viet Le, Pasi Yli-Pirilä, Stefan J. Siebert, Pieter G. van Zyl, Annele Virtanen, Ville Vakkari, Olli Sippula, and Ralf Zimmermann

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Jun 2026	16	7	7	30
Jul 2026	33	22	3	58
Aug 2026	25	10	11	46
Sep 2026	18	8	8	34

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Short summary

Biomass burning emits large amounts of pollutants that undergo atmospheric transformation. This study examined organic vapor emissions from three biomass fuels and their transformation under different oxidation regimes in a smog chamber by real-time mass spectrometry. OH-driven oxidation rapidly altered organic vapor composition than dark oxidation, eliminating differences in chemical vapor composition arising from fuel types or combustion conditions.


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