Taules comparatives entre Barcelona i Madirid a el'estudi 'COVID 19 lockdown effects on air quality by-NO2 in the cities of Barcelona and Madrid' https://www.upc.edu/ca/sala-de-premsa/img/dins-text-taules-2020-covid-19-lockdown-effects-on-air-quality-by-no2-n-the-cities-of-barcelona-and-madrid.jpg/view /++theme++homeupc/assets/images/logomark.png

Taules comparatives entre Barcelona i Madirid a el'estudi 'COVID 19 lockdown effects on air quality by-NO2 in the cities of Barcelona and Madrid'