Articles | Volume 22, issue 10
Atmos. Chem. Phys., 22, 6471–6487, 2022
https://doi.org/10.5194/acp-22-6471-2022
Atmos. Chem. Phys., 22, 6471–6487, 2022
https://doi.org/10.5194/acp-22-6471-2022
Research article
19 May 2022
Research article | 19 May 2022

The impact of large-scale circulation on daily fine particulate matter (PM2.5) over major populated regions of China in winter

Zixuan Jia et al.

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Short summary
This study investigates the modulation of daily PM2.5 over three major populated regions in China by regional meteorology and large-scale circulation during winter. These results demonstrate the benefits of considering the large-scale circulation for air quality studies. The novel circulation indices proposed here can explain a considerable fraction of the day-to-day variability of PM2.5 and can be combined with regional meteorology to improve our capability to predict the variability of PM2.5.
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