To breathe, or not to breathe.
PM2.5, PM10, NO₂ and more – live from monitoring stations around the world.
Explore the mapCombines the measured pollutant concentrations into a single index value using the US EPA methodology, with clear categories from “Good” to “Hazardous”.
Thousands of monitoring stations on every continent, searchable by place name, address, coordinates or your current location.
Analyze measurements from 24 hours up to a year, the typical daily profile, and how a station compares with the IG-L and WHO annual limit values.
Personal air quality monitoring
With a user account you can save relevant stations, compare locations and receive automatic notifications when limit values are exceeded.
Define your own thresholds per station and pollutant, or use the daily and annual limit values of the IG-L, the EU directive and the WHO. Alerts are delivered as push notifications – even when the application is closed.
Set up via the bell icon on any station.
Compare several stations in one chart – for example a traffic site and the urban background – as an hourly series or as a daily profile.
Save the stations that matter to you, for example near your home or workplace, and access their current readings directly at any time.
Select the pollutants and meteorological parameters relevant to you. The map, the air quality index and the station details adapt accordingly.