Copernicus Sentinel-5P Mapping Portal
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Sulphur dioxide concentrations drop over India during COVID-19

Concentrations of sulphur dioxide in polluted areas in India have decreased by around 40% between April 2019 and April 2020. Using data from the Copernicus Sentinel-5P satellite, from the European Union Copernicus programme, scientists have produced new maps which show the drop in concentrations across the country in times of COVID-19. (source:

Detecting methane emissions during COVID-19

While carbon dioxide is more abundant in the atmosphere and therefore more commonly associated with global warming, methane is around 30 times more potent as a heat-trapping gas. Given its importance, Canadian company GHGSat have worked in collaboration with the Sentinel-5P team at SRON Netherlands Institute for Space Research to investigate hotspots of methane emissions during COVID-19. (source:

Is the global COVID-19-related drop in NO2 pollution coming to an end?

Now that COVID-19 mitigation measures are being relaxed in many countries the NO2 concentration is also increasing. Over China, the relaxation of COVID-19 measures brought the NO2 concentrations back to normal levels, as shown in the figure below (source:

Coronavirus lockdown leading to drop in pollution across Europe

Copernicus Sentinel-5P satellite data are showing strong reductions in nitrogen dioxide concentrations over several major cities across Europe – including Paris, Madrid and Rome (source:

Air pollution drops in India following lockdown

Lockdowns imposed to halt the spread of the coronavirus have been recently linked with cleaner air quality over Europe and China. New images, from the Copernicus Sentinel-5P satellite, from the European Union Copernicus programme, now show some cities across India seeing levels drop by around 40–50% owing to its nationwide quarantine (source:

COVID-19: nitrogen dioxide over China

Recent data have shown a decline of air pollution over northern Italy coinciding with its nationwide lockdown to prevent the spread of the coronavirus (COVID-19). This new map shows the variation of nitrogen dioxide concentrations over China from December to March – thanks to the Tropomi instrument on board the Copernicus Sentinel-5P satellite (source:

European Air Quality information in support of the COVID-19 crisis

CAMS is continually monitoring air quality in Europe and around the world using satellite and ground-based observations and advanced numerical models. In the context of the worldwide COVID-19 crisis, there is increased interest in changing air quality. (source: