Modeling the effect of reduced traffic due to COVID-19 measures on air quality using a chemical transport model: impacts on the Po Valley and the Swiss Plateau regions
Giancarlo Ciarelli, Jianhui Jiang, Imad El Haddad, Alessandro Bigi, Şebnem Aksoyoğlu, Andrê S. H. Prévôt, Angela Marinoni, Jiali Shen, Chao Yan, Federico Bianchi
Abstract
Our results indicate that lockdown measures induced a mild increase in secondary organic aerosol (SOA) concentrations in areas with substantial reductions in nitrogen dioxide (NO 2 ) concentrations, i.e. the “Greater Milan” area.
Topics & Concepts
Plateau (mathematics)Air quality indexCoronavirus disease 2019 (COVID-19)Environmental scienceChemical transport modelAir transportMeteorologyTransport engineeringGeographyEngineeringMathematicsInfectious disease (medical specialty)MedicineMathematical analysisPathologyDiseaseAir Quality and Health ImpactsAtmospheric chemistry and aerosolsVehicle emissions and performance