Articles | Volume 20, issue 23
Atmos. Chem. Phys., 20, 14787–14800, 2020
https://doi.org/10.5194/acp-20-14787-2020
Atmos. Chem. Phys., 20, 14787–14800, 2020
https://doi.org/10.5194/acp-20-14787-2020

Research article 02 Dec 2020

Research article | 02 Dec 2020

Significant wintertime PM2.5 mitigation in the Yangtze River Delta, China, from 2016 to 2019: observational constraints on anthropogenic emission controls

Liqiang Wang et al.

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The Chinese government has made major strides in curbing anthropogenic emissions. In this study, we constrain a state-of-the-art CTM by a reliable data assimilation method with extensive chemical and meteorological observations. This comprehensive technical design provides a crucial advance in isolating the influences of emission changes and meteorological perturbations over the Yangtze River Delta (YRD) from 2016 to 2019, thus establishing the first map of the PM2.5 mitigation across the YRD.
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