To breathe, or not to breathe.
PM2.5, PM10, NO₂ and more – live from monitoring stations around the world.
Explore the mapAQI health index
PM2.5, PM10 and NO₂ combined into a single US EPA air quality score.
Good
0–50Moderate
51–100Unhealthy for Sensitive Groups
101–150Unhealthy
151–200Very Unhealthy
201–300Hazardous
301+Live data
Global coverage
Thousands of stations on every continent, searchable by location or coordinates.
Favorite stations
Save the stations you care about most and jump back to them anytime.
Compare stations
Compare air quality trends across multiple stations side by side on the same chart.
7-day trends
Hourly or daily historical charts for any monitoring station.
Measurements
Signed-in users can save their preferred parameters and tailor maps, AQI, and station details to them.
Dust
PM1PM10PM2.5
Gas
NO2SO2CO2O3
Meteorological
TempHumidityWindWind dirPressure