Impact of Coronavirus Outbreak on NO2Pollution Assessed Using TROPOMI and OMI Observations

被引:480
作者
Bauwens, M. [1 ]
Compernolle, S. [1 ]
Stavrakou, T. [1 ]
Muller, J-F [1 ]
van Gent, J. [1 ]
Eskes, H. [2 ]
Levelt, P. F. [2 ,3 ]
van der A, R. [2 ]
Veefkind, J. P. [2 ]
Vlietinck, J. [1 ]
Yu, H. [1 ]
Zehner, C. [4 ]
机构
[1] Royal Belgian Inst Space Aeron BIRA IASB, Brussels, Belgium
[2] Royal Netherlands Meteorol Inst KNMI, De Bilt, Netherlands
[3] Delft Univ Technol TU Delft, Dept Geosci & Remote Sensing, Delft, Netherlands
[4] ESA ESRIN, Frascati, Italy
关键词
air quality; satellite NO2; coronavirus outbreak; lockdown; emissions; NO2; POLLUTION; QUALITY; CLIMATE;
D O I
10.1029/2020GL087978
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
Spaceborne NO(2)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(2)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(2)column drop over all Chinese cities amounts to -40% relative to the same period in 2019 and reaches up to a factor of similar to 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.
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页数:9
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