Articles | Volume 20, issue 14
https://doi.org/10.5194/acp-20-9101-2020
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, Yao He, Jing Duan, Yongjie Li, Qi Chen, Yan Zheng, Yang Chen, Weiwei Hu, Chunshui Lin, Haiyan Ni, Wenting Dai, Junji Cao, Yunfei Wu, Renjian Zhang, Wei Xu, Jurgita Ovadnevaite, Darius Ceburnis, Thorsten Hoffmann, and Colin D. O'Dowd

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Latest update: 20 May 2024
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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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