Satellite observations of nitrogen dioxide near key U.S. ports suggest that increased shipping activity and backlogs may be affecting air quality.
NASA Earth Observatory images by Joshua Stevens, using modified Copernicus Sentinel 5P data processed by the European Space Agency. Story by Adam Voiland, with fact-checking and interpretation from Daniel Goldberg (George Washington University), Ted Russell (Georgia Tech), and Aristeidis Georgoulias (Aristotle University of Thessaloniki).
Published October 27, 2021
Data acquired October 1 - 23, 2021