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Region 1: EPA New England

Today's Air Quality Maps

Today's Air Quality Index
Today's AQi Animation
0-50 51-100 101-150 151-200 201-300 301+
Good Moderate USG* Unhealthy Very Unhealthy Hazardous

*Unhealthy for Sensitive Groups

OZONE AND PARTICLE POLLUTION

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.

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