Impact of lockdown measures to combat Covid-19 on air quality over western Europe

doi:10.1016/j.scitotenv.2020.140426

	Impact of lockdown measures to combat Covid-19 on air quality over western Europe
	Menut, Laurent 1; Bessagnet, Bertrand 1,2; Mailler, Sylvain 1; Pennel, Romain 1; Cholakian, Arineh 1; Siour, Guillaume 3,4
	2020-11
发表期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
摘要	Recent studies based on observations have shown the impact of lockdown measures taken in various European countries to contain the Covid-19 pandemic on air quality. However, these studies are often limited to compare situations without and with lockdown measures, which correspond to different time periods and then under different meteorological conditions. We propose a modelling study with the WRF-CHIMERE modelling suite for March 2020, an approach allowing to compare atmospheric composition with and without lockdown measures without the biases of meteorological conditions. This study shows that the lockdown effect on atmospheric composition, in particular through massive traffic reductions, has been important for several short-lived atmospheric trace species, with a large reduction in NO2 concentrations, a lower reduction in Particulate Matter (PM) concentrations and a mitigated effect on ozone concentrations due to non-linear chemical effects. (c) 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
关键词	COVID-19 Lockdown Chemistry-transport modelling Emissions scenario CHIMERE
DOI	10.1016/j.scitotenv.2020.140426
WOS关键词	CHEMISTRY TRANSPORT MODELS ; MEDITERRANEAN AREA ; JOINT ANALYSIS ; AEROSOLS ; OZONE ; SENSITIVITY ; POLLUTANTS ; DEPOSITION ; EMISSIONS ; POLLUTION
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
出版者	ELSEVIER
引用统计
文献类型	期刊论文
专题	新冠肺炎循证社会科学证据集成
作者单位	1.UPMC Univ Paris 6; 2.Citepa; 3.Univ Paris Est Creteil; 4.Univ Paris
推荐引用方式 GB/T 7714	Menut, Laurent,Bessagnet, Bertrand,Mailler, Sylvain,et al. Impact of lockdown measures to combat Covid-19 on air quality over western Europe[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2020.
APA	Menut, Laurent,Bessagnet, Bertrand,Mailler, Sylvain,Pennel, Romain,Cholakian, Arineh,&Siour, Guillaume.(2020).Impact of lockdown measures to combat Covid-19 on air quality over western Europe.SCIENCE OF THE TOTAL ENVIRONMENT.
MLA	Menut, Laurent,et al."Impact of lockdown measures to combat Covid-19 on air quality over western Europe".SCIENCE OF THE TOTAL ENVIRONMENT (2020).