Air pollution declines in Spain after implementation of measures to fight COVID-19
Wednesday, March 25, 2020 - 09:30
in Earth & Climate
The concentration levels of nitrogen dioxide, a primary air contaminant, have declined 64% in major Spanish cities after the implementation of measures to fight COVID-19. Levels have fallen most in Barcelona, with an 83% decline. In Madrid, levels have dropped 73% and 64% in València.