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

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

doi:https://doi.org/10.5194/acp-20-8511-2020

Articles | Volume 20, issue 14

https://doi.org/10.5194/acp-20-8511-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-20-8511-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 20, issue 14

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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Final revised paper (published on 22 Jul 2020)
Supplement to the final revised paper
Preprint (discussion started on 27 Feb 2020)
Supplement to the preprint

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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SC1: 'Missing information about absorption measurements', Christopher Cappa, 28 Feb 2020
SC2: 'Particle size dependence for particle optics?', James Radney, 03 Mar 2020
RC1: 'review of Cappa et al.', Anonymous Referee #1, 25 Mar 2020
RC2: 'Reviewer #2 Comments', Anonymous Referee #2, 01 Apr 2020
AC1: 'Authors respones', Christopher Cappa, 22 May 2020

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

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.