Articles | Volume 20, issue 2
Atmos. Chem. Phys., 20, 1105–1129, 2020
https://doi.org/10.5194/acp-20-1105-2020
Atmos. Chem. Phys., 20, 1105–1129, 2020
https://doi.org/10.5194/acp-20-1105-2020

Research article 28 Jan 2020

Research article | 28 Jan 2020

Molecular composition and photochemical lifetimes of brown carbon chromophores in biomass burning organic aerosol

Lauren T. Fleming et al.

Download

Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Sergey A. Nizkorodov on behalf of the Authors (10 Nov 2019)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (18 Nov 2019) by Ryan Sullivan
RR by Anonymous Referee #1 (25 Nov 2019)
RR by Anonymous Referee #3 (09 Dec 2019)
ED: Publish subject to technical corrections (09 Dec 2019) by Ryan Sullivan
AR by Sergey A. Nizkorodov on behalf of the Authors (16 Dec 2019)  Author's response    Manuscript
Download
Short summary
We have explored the nature and stability of molecules that give biomass burning smoke its faint brown color. Different types of biomass fuels were burned and the resulting smoke was collected for a detailed chemical analysis. We found that brown molecules in smoke become less colored when they are irradiated by sunlight, but this photobleaching process is very slow. This means that biomass burning smoke will remain brown-colored for a long time and efficiently warm up the atmosphere.
Altmetrics
Final-revised paper
Preprint