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The Response in Air Quality to the Reduction of Chinese Economic Activities During the COVID‐19 Outbreak

Open access
Shi, Xiaoqin, Brasseur, Guy P.·2020·Geophysical Research Letters

Abstract

During the COVID‐19 outbreak that took place in early 2020, the economic activities in China were drastically reduced and accompanied by a strong reduction in the emission of primary air pollutants. On the basis of measurements made at the monitoring stations operated by the China National Environmental Monitoring Center, we quantify the reduction in surface PM 2.5, NO 2, CO, and SO 2 concentrations in northern China during the lockdown, which started on 23 January 2020. We find that, on the average, the levels of surface PM 2.5 and NO 2 have decreased by approximately 35% and 60%, respectively, between the period 1 and 22 January 2020 and the period 23 January and 29 February 2020. At the same time, the mean ozone concentration has increased by a factor 1.5–2. In urban area of Wuhan, where drastic measures were adopted to limit the spread of the coronavirus, similar changes in the concentrations of PM 2.5, NO 2, and ozone are found.

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Metadata

Authors
Shi, X., & Brasseur, G. P.
Venue
Geophysical Research Letters
Published
2020-06-05
Volume
47
Issue
11
Pages
e2020GL088070-e2020GL088070
ISSN
  • 0094-8276 (ISSN-L)
  • 1944-8007
OpenAlex
W3025597559
Cited by
519
References
2
FWCI
40.28
Type
journal article
Language
en
Open access
hybrid

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CoChat. (2026). Citation check: The Response in Air Quality to the Reduction of Chinese Economic Activities During the COVID‐19 Outbreak. https://app.cochat.ai/papers/10.1029/2020gl088070
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Shi, X., & Brasseur, G. P. (2020). The Response in Air Quality to the Reduction of Chinese Economic Activities During the COVID‐19 Outbreak. Geophysical Research Letters. https://doi.org/10.1029/2020gl088070

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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