Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 20, issue 13
Articles | Volume 20, issue 13
https://doi.org/10.5194/acp-20-7667-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-20-7667-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 20, issue 13
Research article
 | 
02 Jul 2020
Research article |  | 02 Jul 2020

Effects of atmospheric circulations on the interannual variation in PM2.5 concentrations over the Beijing–Tianjin–Hebei region in 2013–2018

Xiaoyan Wang and Renhe Zhang

Supplement

https://doi.org/10.5194/acp-20-7667-2020-supplement

Data sets

WRF Users Page UCAR https://www2.mmm.ucar.edu/wrf/users/download/get_source.html

Reanalysis datasets/ERA5 European Centre for Medium-Range Weather Forecasts https://www.ecmwf.int/en/forecasts/datasets/reanalysis-datasets/era5

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Short summary
This study investigated the effects of meteorological elements on the interannual variation in air quality. It shows consistent variations of PM2.5 concentrations and the occurrence of unfavorable circulation types. The favorable meteorological conditions in 2017 contribute to 59.9 % of the interannual decrease in PM2.5 concentrations, which highlights the importance of atmospheric conditions when evaluating the interannual variations in local air quality.
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