Articles | Volume 24, issue 4
https://doi.org/10.5194/acp-24-2639-2024
© Author(s) 2024. 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-24-2639-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
29 Feb 2024
Research article |
| 29 Feb 2024
| 29 Feb 2024
Molecular analysis of secondary organic aerosol and brown carbon from the oxidation of indole
Feng Jiang
CORRESPONDING AUTHOR
Institute of Meteorology and Climate Research, Karlsruhe Institute of Technology, 76344 Eggenstein–Leopoldshafen, Germany
Institute of Applied Geosciences, Working Group for Environmental Mineralogy and Environmental System Analysis, Karlsruhe Institute of Technology, 76131 Karlsruhe, Germany
Kyla Siemens
Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
Claudia Linke
Institute of Meteorology and Climate Research, Karlsruhe Institute of Technology, 76344 Eggenstein–Leopoldshafen, Germany
Yanxia Li
Institute of Meteorology and Climate Research, Karlsruhe Institute of Technology, 76344 Eggenstein–Leopoldshafen, Germany
Yiwei Gong
Institute of Meteorology and Climate Research, Karlsruhe Institute of Technology, 76344 Eggenstein–Leopoldshafen, Germany
Thomas Leisner
Institute of Meteorology and Climate Research, Karlsruhe Institute of Technology, 76344 Eggenstein–Leopoldshafen, Germany
Institute of Environmental Physics, Heidelberg University, 69120 Heidelberg, Germany
Alexander Laskin
Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
Department of Earth, Atmospheric and Planetary Sciences, Purdue University, West Lafayette, Indiana 47907, United States
Institute of Meteorology and Climate Research, Karlsruhe Institute of Technology, 76344 Eggenstein–Leopoldshafen, Germany
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Cited
13 citations as recorded by crossref.
- QSPR modeling of physicochemical properties in atmospheric photo-oxidized indole derivatives: integrating topological indices with linear, quadratic, and logarithmic regression H. Wei et al. https://doi.org/10.1515/zna-2025-0177
- Contrasting organic aerosol molecular composition between the urban and agricultural environment of the Po Valley L. D'Angelo et al. https://doi.org/10.5194/acp-26-6799-2026
- Isomeric Identification of the Nitroindole Chromophore in Indole + NO3 Organic Aerosol A. Dalton et al. https://doi.org/10.1021/acsphyschemau.4c00044
- Decoupling the Evolution of the Light-Absorption Properties of Primary and Secondary Organic Aerosol Produced from Duff Burning M. Abdurrahman et al. https://doi.org/10.1021/acsestair.5c00274
- Molecular insights into the composition, sources, and aging of atmospheric brown carbon A. Laskin et al. https://doi.org/10.1039/D3CS00609C
- Photochemical Aging of Indole SOA: Implications for Volatility and Optical Properties T. Ajith et al. https://doi.org/10.1021/acs.est.5c10237
- Evaluation of the 365 nm CAPS PM SSA monitor and its use in both laboratory and field measurements T. Ajith et al. https://doi.org/10.1080/02786826.2025.2488478
- Atmospheric brown carbon from biofuel pyrolysis: comparative analysis of dung and wood sources D. Calderon-Arrieta et al. https://doi.org/10.1039/D5EA00105F
- AIDA Arctic transport experiment – Part 1: Simulation of northward transport and aging effect on fundamental black carbon properties M. Zanatta et al. https://doi.org/10.5194/ar-3-477-2025
- Overlapping Chromophores Overlook Coal Combustion Contribution to Brown Carbon by Emphasizing Biomass Burning and Secondary Formation H. Li et al. https://doi.org/10.1021/acsestair.6c00043
- Brown carbon unveiled: Molecular complexity, observational frontiers, and climate forcing T. Yang et al. https://doi.org/10.1016/j.fmre.2026.01.010
- Measurement report: Brown carbon aerosol in rural Germany – sources, chemistry, and diurnal variations F. Jiang et al. https://doi.org/10.5194/acp-25-1917-2025
- Research on the optical properties of secondary organic aerosols based on laboratory simulations: progress and prospects S. Wei et al. https://doi.org/10.1016/j.atmosres.2026.109137
13 citations as recorded by crossref.
- QSPR modeling of physicochemical properties in atmospheric photo-oxidized indole derivatives: integrating topological indices with linear, quadratic, and logarithmic regression H. Wei et al. https://doi.org/10.1515/zna-2025-0177
- Contrasting organic aerosol molecular composition between the urban and agricultural environment of the Po Valley L. D'Angelo et al. https://doi.org/10.5194/acp-26-6799-2026
- Isomeric Identification of the Nitroindole Chromophore in Indole + NO3 Organic Aerosol A. Dalton et al. https://doi.org/10.1021/acsphyschemau.4c00044
- Decoupling the Evolution of the Light-Absorption Properties of Primary and Secondary Organic Aerosol Produced from Duff Burning M. Abdurrahman et al. https://doi.org/10.1021/acsestair.5c00274
- Molecular insights into the composition, sources, and aging of atmospheric brown carbon A. Laskin et al. https://doi.org/10.1039/D3CS00609C
- Photochemical Aging of Indole SOA: Implications for Volatility and Optical Properties T. Ajith et al. https://doi.org/10.1021/acs.est.5c10237
- Evaluation of the 365 nm CAPS PM SSA monitor and its use in both laboratory and field measurements T. Ajith et al. https://doi.org/10.1080/02786826.2025.2488478
- Atmospheric brown carbon from biofuel pyrolysis: comparative analysis of dung and wood sources D. Calderon-Arrieta et al. https://doi.org/10.1039/D5EA00105F
- AIDA Arctic transport experiment – Part 1: Simulation of northward transport and aging effect on fundamental black carbon properties M. Zanatta et al. https://doi.org/10.5194/ar-3-477-2025
- Overlapping Chromophores Overlook Coal Combustion Contribution to Brown Carbon by Emphasizing Biomass Burning and Secondary Formation H. Li et al. https://doi.org/10.1021/acsestair.6c00043
- Brown carbon unveiled: Molecular complexity, observational frontiers, and climate forcing T. Yang et al. https://doi.org/10.1016/j.fmre.2026.01.010
- Measurement report: Brown carbon aerosol in rural Germany – sources, chemistry, and diurnal variations F. Jiang et al. https://doi.org/10.5194/acp-25-1917-2025
- Research on the optical properties of secondary organic aerosols based on laboratory simulations: progress and prospects S. Wei et al. https://doi.org/10.1016/j.atmosres.2026.109137
Saved (final revised paper)
Latest update: 01 Aug 2026
Short summary
We investigated the optical properties, chemical composition, and formation mechanisms of secondary organic aerosol (SOA) and brown carbon (BrC) from the oxidation of indole with and without NO2 in the Aerosol Interaction and Dynamics in the Atmosphere (AIDA) simulation chamber. This work is one of the very few to link the optical properties and chemical composition of indole SOA with and without NO2 by simulation chamber experiments.
We investigated the optical properties, chemical composition, and formation mechanisms of...
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