Articles | Volume 22, issue 10
Atmos. Chem. Phys., 22, 6507–6521, 2022
https://doi.org/10.5194/acp-22-6507-2022
Atmos. Chem. Phys., 22, 6507–6521, 2022
https://doi.org/10.5194/acp-22-6507-2022
Research article
19 May 2022
Research article | 19 May 2022

Intraseasonal variation of the northeast Asian anomalous anticyclone and its impacts on PM2.5 pollution in the North China Plain in early winter

Xiadong An et al.

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Short summary
The intraseasonal NAAA usually establishes quickly on day −3 with a life span of 8 days. Further results revealed that the probability of regional PM2.5 pollution related to the NAAA for at least 2 days in the NCP is 80% in NDJ period 2000–2021. Particularly, air quality in the NCP tends to deteriorate on day 2 prior to the peak day of the NAAA and reaches a peak on day −1 with a life cycle of 4 days. The corresponding meteorological conditions support these conclusions.
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