Air quality in Portugal
Choose a city to check the latest available outdoor air quality, nearby stations and forecasts.
Cities and monitoring stations
Find a city
Portugal’s national monitoring network
The Portuguese Environment Agency publishes the country’s daily air quality index and station data through QualAr. Use the individual city pages here for the source, period and local data coverage. QualAr has national network information and the agency’s assessments over longer periods.
Comparing locations in Portugal
Use the city and station pages to check what was measured or estimated. Match the pollutant, valid hour and source type before comparing concentrations. A station value represents its surroundings, while a model forecast covers an area.