Articles | Volume 21, issue 8
Research article
23 Apr 2021
Research article |  | 23 Apr 2021

Non-equilibrium interplay between gas–particle partitioning and multiphase chemical reactions of semi-volatile compounds: mechanistic insights and practical implications for atmospheric modeling of polycyclic aromatic hydrocarbons

Jake Wilson, Ulrich Pöschl, Manabu Shiraiwa, and Thomas Berkemeier


Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Thomas Berkemeier on behalf of the Authors (02 Feb 2021)  Author's response    Author's tracked changes    Manuscript
ED: Publish as is (02 Mar 2021) by Rob MacKenzie
Short summary
This work explores the gas–particle partitioning of PAHs on soot with a kinetic model. We show that the equilibration timescale depends on PAH molecular structure, temperature, and particle number concentration. We explore scenarios in which the particulate fraction is perturbed from equilibrium by chemical loss and discuss implications for chemical transport models that assume instantaneous equilibration at each model time step.
Final-revised paper