dc.contributor
Universitat Politècnica de Catalunya. Departament d'Enginyeria de Projectes i de la Construcció
dc.contributor
Barcelona Supercomputing Center
dc.contributor
Universitat Politècnica de Catalunya. GRIC - Grup de Recerca i Innovació de la Construcció
dc.contributor.author
Baldasano Recio, José María
dc.date.issued
2020-11-01
dc.identifier
Baldasano, J. COVID-19 lockdown effects on air quality by NO2 in the cities of Barcelona and Madrid (Spain). "Science of the total environment", 1 Novembre 2020, vol. 741, article 140353, p. 1-10.
dc.identifier
https://hdl.handle.net/2117/192476
dc.identifier
10.1016/j.scitotenv.2020.140353
dc.description.abstract
During the months of March and April 2020 we witnessed the largest-scale experiment in history in terms of air quality in cities. Any prediction of this experiment's results may be obvious to science, as it was totally expected, the air quality has improved substantially. Simply stated, it comes as no surprise. The lockdown has made it possible to quantify the limit of decrease in pollution in light of this drastic reduction in traffic, in Madrid and Barcelona showed a significant decrease of the order of 75%. In the case of Spain's two largest cities, the reductions of NO2 concentrations were 62% and 50%, respectively. Hourly measurements were obtained from 24 and 9 air quality stations from the monitoring networks during the month of March 2020. These results allow us to see the limits that can be achieved by implementing low emission zones (LEZ), as well as the amount of contamination that must be eliminated, which in the cases of Madrid and Barcelona, represent 55%. This value defines the levels of effort and scope of actions to be taken in order to ensure that both cities achieve a clean and healthy atmosphere in terms of NO2.
dc.description.abstract
Peer Reviewed
dc.description.abstract
Postprint (published version)
dc.format
application/pdf
dc.relation
https://www.sciencedirect.com/science/article/pii/S0048969720338754
dc.rights
© 2020 Elsevier
dc.rights
https://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights
Attribution-NonCommercial-NoDerivatives 4.0 International
dc.subject
Àrees temàtiques de la UPC::Desenvolupament humà i sostenible::Degradació ambiental::Contaminació atmosfèrica
dc.subject
COVID-19 (Disease)
dc.subject
Nitrogen dioxide (NO2)
dc.subject
Lockdown measures
dc.subject
Traffic emission reduction
dc.subject
Aire -- Qualitat
dc.subject
COVID-19 (Malaltia)
dc.subject
Circulació urbana
dc.title
COVID-19 lockdown effects on air quality by NO2 in the cities of Barcelona and Madrid (Spain)
