What's the air quality today?

These maps are created by the Air Quality Mapping System from ozone and particle data gathered from a nationwide network of state and local air monitoring stations. The maps show the higher of the estimated ozone AQI and PM2.5 AQI. Each AQI value is calculated in accordance with EPA's Air Quality Index for ozone and particle pollution. read more

Air quality is considered satisfactory, and air pollution poses little or no risk. AQI: Moderate (51 - 100) Air quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution. read more

Current air pollution levels for fine particles and ozone, along with a five-day forecast. read more