NO2 air pollution variation during the coronavirus crisis Spain March 2020
The levels of nitrogen dioxide, a pollutant that originates mainly by combustion engines burning fuel, dropped drastically in Spain during the first week of forced confinement which was announced by the Spanish government the 15th of March 2020. As of that day, the level of air pollution in the coastal city of Valencia decreased from 114 to 42, which represented a drop of 64 percent in the level of nitrogene dioxide.
