Articles | Volume 20, issue 14
https://doi.org/10.5194/acp-20-8511-2020
https://doi.org/10.5194/acp-20-8511-2020
Research article
 | 
22 Jul 2020
Research article |  | 22 Jul 2020

Biomass-burning-derived particles from a wide variety of fuels – Part 2: Effects of photochemical aging on particle optical and chemical properties

Christopher D. Cappa, Christopher Y. Lim, David H. Hagan, Matthew Coggon, Abigail Koss, Kanako Sekimoto, Joost de Gouw, Timothy B. Onasch, Carsten Warneke, and Jesse H. Kroll

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AR by Christopher Cappa on behalf of the Authors (22 May 2020)  Author's response   Manuscript 
ED: Publish as is (17 Jun 2020) by Ryan Sullivan
AR by Christopher Cappa on behalf of the Authors (24 Jun 2020)  Manuscript 
Short summary
Smoke from combustion of a wide range of biomass fuels (e.g., leaves, twigs, logs, peat, and dung) was photochemically aged in a small chamber for up to 8 d of equivalent atmospheric aging. Upon aging, the particle chemical composition and ability to absorb sunlight changed owing to reactions in both the gas and particulate phases. We developed a model to explain the observations and used this to derive insights into the aging of smoke in the atmosphere.
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