Articles | Volume 20, issue 5
Atmos. Chem. Phys., 20, 2709–2718, 2020
https://doi.org/10.5194/acp-20-2709-2020
Atmos. Chem. Phys., 20, 2709–2718, 2020
https://doi.org/10.5194/acp-20-2709-2020

Research article 05 Mar 2020

Research article | 05 Mar 2020

Significant seasonal changes in optical properties of brown carbon in the midlatitude atmosphere

Heejun Han et al.

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Latest update: 08 May 2021
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Short summary
We found significant seasonal variations in optical and chemical properties of organic aerosols in the urban region and changes in photo-resistivity of light-absorbing organic aerosols (e.g., brown carbon) owing to the high UV radiation in the atmosphere. Our results suggest that photochemical degradation plays a significant role in light-absorbing organic aerosol abundances and might be an important removal mechanism of light-absorbing aerosols in the atmosphere.
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