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—US AQI
Awaiting forecastAir Quality
A clearer picture of the air around you.
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Popular Cities
Current US AQI estimates · Select a city to view its air quality
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CURRENT AIR QUALITY
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Model estimate · Awaiting data
050100150200300500+
Higher numbers mean more pollution.View weather →
5-day air-quality forecast
Daily average US AQI
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Awaiting forecastHourly air-quality forecast
Next 24 hours · Local time at your selected location
What’s in the air?
Current pollutant concentrations · Micrograms per cubic meter (µg/m³)
PM2.5
Fine particles
— µg/m³PM10
Coarse particles
— µg/m³O₃
Ozone
— µg/m³NO₂
Nitrogen dioxide
— µg/m³SO₂
Sulfur dioxide
— µg/m³CO
Carbon monoxide
— µg/m³Air-quality map
PM2.5 concentration · CAMS forecast via Windy
Understanding the AQI
Learn about the US AQI ↗🍃 Cleanest air right now
▲ Highest AQI right now
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Air-quality estimates and forecast data provided by Visual Crossing. Location search: GeoNames via Open-Meteo.
Regional model estimates may differ from nearby monitoring stations. Activity guidance is based on AirNow’s particle-pollution guide; consult local advice for ozone and other pollutants.
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Awaiting forecastPM2.5
Fine particles
— µg/m³PM10
Coarse particles
— µg/m³O₃
Ozone
— µg/m³NO₂
Nitrogen dioxide
— µg/m³SO₂
Sulfur dioxide
— µg/m³CO
Carbon monoxide
— µg/m³