Articles | Volume 16, issue 20
https://doi.org/10.5194/acp-16-13251-2016
https://doi.org/10.5194/acp-16-13251-2016
Research article
 | 
28 Oct 2016
Research article |  | 28 Oct 2016

Transformation of logwood combustion emissions in a smog chamber: formation of secondary organic aerosol and changes in the primary organic aerosol upon daytime and nighttime aging

Petri Tiitta, Ari Leskinen, Liqing Hao, Pasi Yli-Pirilä, Miika Kortelainen, Julija Grigonyte, Jarkko Tissari, Heikki Lamberg, Anni Hartikainen, Kari Kuuspalo, Aki-Matti Kortelainen, Annele Virtanen, Kari E. J. Lehtinen, Mika Komppula, Simone Pieber, André S. H. Prévôt, Timothy B. Onasch, Douglas R. Worsnop, Hendryk Czech, Ralf Zimmermann, Jorma Jokiniemi, and Olli Sippula

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AR: Author's response | RR: Referee report | ED: Editor decision
AR by Petri Tiitta on behalf of the Authors (24 Sep 2016)  Author's response    Manuscript
ED: Publish as is (11 Oct 2016) by David Topping
AR by Petri Tiitta on behalf of the Authors (11 Oct 2016)  Author's response    Manuscript
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Short summary
Real-time measurements of OA aging and SOA formation from logwood combustion were conducted under dark and UV oxidation. Substantial SOA formation was observed in all experiments, leading to twice the initial OA mass emphasizing the importance of the burning conditions for the aging processes. The results prove that emissions are subject to intensive chemical processing in the atmosphere; e.g. the most of the POA was found to become oxidized after the ozone addition, forming aged POA.
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