Articles | Volume 21, issue 8
Atmos. Chem. Phys., 21, 6509–6539, 2021
https://doi.org/10.5194/acp-21-6509-2021
Atmos. Chem. Phys., 21, 6509–6539, 2021
https://doi.org/10.5194/acp-21-6509-2021

Research article 30 Apr 2021

Research article | 30 Apr 2021

Chemical composition and source attribution of sub-micrometre aerosol particles in the summertime Arctic lower troposphere

Franziska Köllner et al.

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Short summary
We present in situ observations of vertically resolved particle chemical composition in the summertime Arctic lower troposphere. Our analysis demonstrates the strong vertical contrast between particle properties within the boundary layer and aloft. Emissions from vegetation fires and anthropogenic sources in northern Canada, Europe, and East Asia influenced particle composition in the free troposphere. Organics detected in Arctic aerosol particles can partly be identified as dicarboxylic acids.
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