Air quality. The classification will be the basis for measures to reduce pollution in the Barcelona area.
Environment. Eleven monitoring stations measure pollution in Barcelona.
Mobility. Car journeys fell by 4.3%, while the volume of people using the metro rose by 5%.
Environment. Initiatives to reduce the circulation of motorised vehicles are aimed at reducing pollution in Barcelona and the metropolitan area, where poor air quality results in 3,500 premature deaths every year.