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Check current Air Quality Index (AQI) for US cities.
PM2.5 (data unavailable)
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USA AQI Checker (Air Quality) helps you check current air quality risk levels so you can make safer daily activity decisions.
Monitor air quality across the United States. Get current AQI levels and health recommendations for your city.
Select your city from the dropdown.
View the current AQI value and color-coded health status.
Read health recommendations based on current air pollution levels.
AQI categories are mapped to standard threshold bands (Good, Moderate, Unhealthy) with guidance for common risk groups.
The Air Quality Index (AQI) is used by government agencies to communicate how polluted the air is currently or how polluted it is forecast to become.
The AQI focuses on five major pollutants: ground-level ozone, particle pollution (PM2.5 and PM10), carbon monoxide, sulfur dioxide, and nitrogen dioxide.