Lisbon met the European annual limit value for nitrogen dioxide in 2025 at all monitoring stations in the city. This was the first time since the covid-19 pandemic that the Portuguese capital achieved this environmental milestone.
The improvement in air quality represents a significant milestone for the city, which for several years was unable to meet the European standards established for the concentration of this atmospheric pollutant.
Meeting the European limits at all monitoring stations indicates a positive trend in the reduction of nitrogen dioxide emissions in Lisbon, a substance frequently associated with vehicle traffic and industrial activity.
This result positions Lisbon as a city making progress regarding European environmental targets, although the article does not detail which specific measures may have contributed to this evolution.
