English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
Add to Basket
  Local TagsRelease HistoryDetailsSummary

Released
Journal Article

Response of surface ozone concentration to emission reduction and meteorology during the COVID-19 lockdown in Europe

MPS-Authors
/persons/resource/persons267703

Deroubaix,  Adrien
Environmental Modelling, MPI for Meteorology, Max Planck Society;

/persons/resource/persons37111

Brasseur,  Guy P.       
Environmental Modelling, MPI for Meteorology, Max Planck Society;

External Resource
No external resources are shared
Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)

met.1990.pdf
(Publisher version), 23MB

Supplementary Material (public)
There is no public supplementary material available
Citation

Deroubaix, A., Brasseur, G. P., Gaubert, B., Labuhn, I., Menut, L., Siour, G., et al. (2021). Response of surface ozone concentration to emission reduction and meteorology during the COVID-19 lockdown in Europe. Meteorological Applications, 28: e1990. doi:10.1002/met.1990.


Cite as: https://hdl.handle.net/21.11116/0000-0008-E356-7
Abstract
The lockdown period (March-May 2020) during the COVID-19 pandemic in Europe led to a reduction in the anthropogenic emissions of primary pollutants. For three-quarters of over 1,100 available monitoring stations, the average nitrogen dioxide (NO2) concentrations decreased by at least 2.7 mu g center dot m(-3) (or 25%) compared with the average concentrations recorded during the same period of the previous seven years. This reduction was not specific to urban or rural areas because the relative reduction was of similar magnitude in both areas. The ozone (O-3) response differed spatially, with positive anomalies in Northern Europe and negative anomalies in Southwestern Europe. Reduced cloudiness and related enhanced radiation in Northern Europe played a significant role in the increase of surface O-3 concentrations by shifting the photochemical partitioning between NO2 and O-3 toward more O-3. The level of total oxidant (O-x = O-3 + NO2) remained unchanged, except in Southwestern Europe where it decreased. Several episodes lasting a few days of a high level of total oxidants were observed in Northern Europe. The results illustrate the complexity of the atmospheric response to the unprecedented reduction in the emission of primary pollutants.