Abrupt decline in tropospheric nitrogen dioxide over China after the outbreak of COVID-19.
Sci Adv
; 6(28): eabc2992, 2020 Jul.
Article
in English
| MEDLINE | ID: covidwho-1316917
Preprint
This scientific journal article is probably based on a previously available preprint. It has been identified through a machine matching algorithm, human confirmation is still pending.
See preprint
This scientific journal article is probably based on a previously available preprint. It has been identified through a machine matching algorithm, human confirmation is still pending.
See preprint
ABSTRACT
China's policy interventions to reduce the spread of the coronavirus disease 2019 have environmental and economic impacts. Tropospheric nitrogen dioxide indicates economic activities, as nitrogen dioxide is primarily emitted from fossil fuel consumption. Satellite measurements show a 48% drop in tropospheric nitrogen dioxide vertical column densities from the 20 days averaged before the 2020 Lunar New Year to the 20 days averaged after. This decline is 21 ± 5% larger than that from 2015 to 2019. We relate this reduction to two of the government's actions the announcement of the first report in each province and the date of a province's lockdown. Both actions are associated with nearly the same magnitude of reductions. Our analysis offers insights into the unintended environmental and economic consequences through reduced economic activities.
Full text:
Available
Collection:
International databases
Database:
MEDLINE
Language:
English
Journal:
Sci Adv
Year:
2020
Document Type:
Article
Affiliation country:
Sciadv.abc2992
Similar
MEDLINE
...
LILACS
LIS