August 3, 2025Open Access

NOx emissions changes from 2019 to 2021 in Eastern China as estimated through variational inversions and TROPOMI satellite data

View Full Paper

Ask AI

Bookmark

Authors

Discussion

Analysis reveals a 40% drop in nox emissions during COVID-19 lockdowns in Eastern China, indicating significant air quality changes.

Nox emissions in Eastern China decreased significantly during COVID-19 restrictions in early 2020 compared to 2019.
February 2020 saw reductions of up to 40% in nox emissions, particularly in major provinces like Shanghai and Beijing.
The study utilized TROPOMI satellite data and variational inversions for accurate emissions estimation.
In 2021, nox emissions rebounded to 16.7 TgNO2/year, highlighting challenges in maintaining air quality post-lockdown.

Abeed et al. (2025) studied this question.

View Full Paper

Ask AI

Bookmark