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Impact of Coronavirus Outbreak on NO 2 Pollution Assessed Using TROPOMI and OMI Observations.
- Source :
-
Geophysical research letters [Geophys Res Lett] 2020 Jun 16; Vol. 47 (11), pp. e2020GL087978. Date of Electronic Publication: 2020 Jun 05. - Publication Year :
- 2020
-
Abstract
- Spaceborne NO <subscript>2</subscript> column observations from two high-resolution instruments, Tropospheric Monitoring Instrument (TROPOMI) on board Sentinel-5 Precursor and Ozone Monitoring Instrument (OMI) on Aura, reveal unprecedented NO <subscript>2</subscript> decreases over China, South Korea, western Europe, and the United States as a result of public health measures enforced to contain the coronavirus disease outbreak (Covid-19) in January-April 2020. The average NO <subscript>2</subscript> column drop over all Chinese cities amounts to -40% relative to the same period in 2019 and reaches up to a factor of ~2 at heavily hit cities, for example, Wuhan, Jinan, while the decreases in western Europe and the United States are also significant (-20% to -38%). In contrast with this, although Iran is also strongly affected by the disease, the observations do not show evidence of lower emissions, reflecting more limited health measures.<br /> (©2020. The Authors.)
Details
- Language :
- English
- ISSN :
- 0094-8276
- Volume :
- 47
- Issue :
- 11
- Database :
- MEDLINE
- Journal :
- Geophysical research letters
- Publication Type :
- Academic Journal
- Accession number :
- 32836515
- Full Text :
- https://doi.org/10.1029/2020GL087978