Articles | Volume 19, issue 24
Atmos. Chem. Phys., 19, 15651–15671, 2019
https://doi.org/10.5194/acp-19-15651-2019

Special issue: Simulation chambers as tools in atmospheric research (AMT/ACP/GMD...

Atmos. Chem. Phys., 19, 15651–15671, 2019
https://doi.org/10.5194/acp-19-15651-2019

Research article 20 Dec 2019

Research article | 20 Dec 2019

Potential dual effect of anthropogenic emissions on the formation of biogenic secondary organic aerosol (BSOA)

Eetu Kari et al.

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Latest update: 01 Mar 2021
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Short summary
We present, for the first time, the dual effect of GDI-vehicle exhaust on α-pinene SOA mass yield suppression. The first effect is a well-known NOx effect, but the second effect is more complex. Our results imply that this second effect is related to change of reaction pathways of α-pinene in the presence of GDI exhaust. The presence of vehicle exhaust caused more than 50 % suppression in α-pinene SOA mass yield compared to the α-pinene SOA mass yield measured in the absence of GDI emissions.
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