NOx Emission Reduction and Recovery during COVID-19 in East China

  title={NOx Emission Reduction and Recovery during COVID-19 in East China},
  author={Ruixiong Zhang and Yuzhong Zhang and Haipeng Lin and Xu Feng and Tzung‐May Fu and Yuhang Wang},
Since its first confirmed case at the end of 2019, COVID-19 has become a global pandemic in three months with more than 1.4 million confirmed cases worldwide, as of early April 2020. Quantifying the changes of pollutant emissions due to COVID-19 and associated governmental control measures is crucial to understand its impacts on economy, air pollution, and society. We used the WRF-GC model and the tropospheric NO2 column observations retrieved by the TROPOMI instrument to derive the top-down… 

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