Quantifying urban, industrial, and background changes in NO2 during the COVID-19 lockdown period based on TROPOMI satellite observations

V Fioletov, CA McLinden, D Griffin… - Atmospheric …, 2022 - acp.copernicus.org
The COVID-19 lockdown had a large impact on anthropogenic emissions of air pollutants
and particularly on nitrogen dioxide (NO2). While the overall NO2 decline over some large …

Markers of economic activity in satellite aerosol optical depth data

S Kondragunta, Z Wei, H Zhang, H Liu… - Environmental …, 2023 - iopscience.iop.org
This study investigated the impact of COVID-19 lockdowns on satellite aerosol optical depth
(AOD), to explore the hypothesis that if changes in economic activity are seen in emissions …

COVID‐19 induced fingerprints of a new normal urban air quality in the United States

S Kondragunta, Z Wei, BC McDonald… - Journal of …, 2021 - Wiley Online Library
Most countries around the world, including the United States, took actions to control COVID‐
19 spread that led to an abrupt shift in human activity. On‐road NOx emissions from light and …