The effects of the coronavirus lockdown on air quality: a comparative analysis of satellite data
March 2019
March 2020
Several images have been processed on the ONDA platform with the aim to compare the presence of nitrogen dioxide (NO2) in the atmosphere before and during the current lockdown in Europe.
Satellite data
For this purpose, data from the Sentinel-5P TROPOMI instrument have been used: the spectrometer maps a multitude of trace gases, such as nitrogen dioxide, ozone, formaldehyde, sulphur dioxide, methane, carbon monoxide and aerosols.
NO2 and lockdown
NO2 emissions are a major air pollutant, and are closely linked to [...]