Articles | Volume 20, issue 14
Atmos. Chem. Phys., 20, 9101–9114, 2020
https://doi.org/10.5194/acp-20-9101-2020

Special issue: Multiphase chemistry of secondary aerosol formation under...

Atmos. Chem. Phys., 20, 9101–9114, 2020
https://doi.org/10.5194/acp-20-9101-2020

Research article 31 Jul 2020

Research article | 31 Jul 2020

Contrasting sources and processes of particulate species in haze days with low and high relative humidity in wintertime Beijing

Ru-Jin Huang et al.

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Latest update: 20 Sep 2021
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Short summary
We systematically compared the submicron particle (PM1) processes in haze days with low and high relative humidity (RH) in wintertime Beijing. Nitrate had similar daytime growth rates in low-RH and high-RH pollution. OOA had a higher growth rate in low-RH pollution than in high-RH pollution. Sulfate had a decreasing trend in low-RH pollution, while it increased significantly in high-RH pollution. This distinction may be explained by the different processes affected by meteorological conditions.
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