Articles | Volume 21, issue 13
Atmos. Chem. Phys., 21, 10065–10080, 2021
https://doi.org/10.5194/acp-21-10065-2021
Atmos. Chem. Phys., 21, 10065–10080, 2021
https://doi.org/10.5194/acp-21-10065-2021

Research article 06 Jul 2021

Research article | 06 Jul 2021

Quantitative assessment of changes in surface particulate matter concentrations and precursor emissions over China during the COVID-19 pandemic and their implications for Chinese economic activity

Hyun Cheol Kim et al.

Data sets

CNEMC data CNEMC http://www.pm25.in

TROPOMI data NASA GES DISC http://tropomi.gesdisc.eosdis.nasa.gov

Model code and software

WRF Source Codes and Graphics Software Download Page WRF https://www2.mmm.ucar.edu/wrf/users/download/get_sources.html

USEPA/CMAQ Github https://github.com/USEPA/CMAQ/tree/4.7.1

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Short summary
Global outbreaks of COVID-19 offer rare opportunities of natural experiments in emission control and corresponding responses of tropospheric chemistry. This study's novel approach investigates (1) isolating the pandemic's impact from natural and anthropogenic variations, (2) emission adjustment to reproduce real-time emissions, and (3) brute-force modeling to investigate Chinese economic activities. Results provide characteristics of the region's chemistry and emissions.
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