Articles | Volume 16, issue 20
Atmos. Chem. Phys., 16, 13251–13269, 2016
https://doi.org/10.5194/acp-16-13251-2016
Atmos. Chem. Phys., 16, 13251–13269, 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 et al.

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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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