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Air Quality Forecast
Air Quality Data
Current and expected air quality concentrations for the upcoming 24 hours. Air quality forecasts are scheduled to be updated by 3:00 pm weekdays and other times as necessary. Forecasts are also available on the Bureau's Air Quality Hotline at (800) 223-1196.
AIRNow Mobile App This EPA mobile application provides real-time air quality information that you can use to protect your health when planning your day.
EnviroFlash Subscribe to receive emails when the air quality is forecast to reach the AQI level you select.
Forecasts on Twitter.Today's Forecast: May 22, 2013
| Region | Ozone | Particle |
|---|---|---|
| Northern | Good | Good |
| Western Mtns | Good | Good |
| Western Interior | Good | Good |
| Eastern Interior | Good | Good |
| Southwest Coast | Good | Good |
| Mid-Coast | Good | Good |
| Downeast | Good | Good |
| High Elevation | Good | Good |
Ozone
Particle Pollution
Forecast Details: Updated Tuesday, May 21, at 2:20 PM: Wednesday's Air Quality Forecast for Ozone and Particle Pollution is GOOD statewide. [Much of the rest of New England can expect at least Moderate levels of ozone. However, the front looks slow to move through Maine. Therefore, the good transport with less cloud cover doesn't really set up until later in the day.] -- Forecaster: Webster
Tomorrow's Forecast: May 23, 2013
| Region | Ozone | Particle |
|---|---|---|
| Northern | Good | Good |
| Western Mtns | Good | Good |
| Western Interior | Good | Good |
| Eastern Interior | Good | Good |
| Southwest Coast | Good | Good |
| Mid-Coast | Good | Good |
| Downeast | Good | Good |
| High Elevation | Good | Good |
Ozone
Particle Pollution
Forecast Details: Issued Tuesday, May 21, at 2:20 PM: Thursday's Air Quality Forecast for Ozone and Particle Pollution is GOOD statewide. -- Forecaster: Webster
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Health Effects |
|---|---|---|
| GREEN | No Health Notice - No health impacts expected in this range. | |
| YELLOW | Limited Health Notice - Sensitive people should consider reducing prolonged or heavy exertion. | |
| ORANGE | Health Notice - People with heart or lung disease, the elderly and children should reduce prolonged or heavy exertion. | |
| RED | Health Advisory - People with heart or lung disease, the elderly and children should avoid prolonged or heavy exertion; everyone else should reduce prolonged or heavy exertion. | |
| PURPLE | Health Alert - People with respiratory or heart disease, the elderly, and children should avoid any outdoor activity; everyone else should avoid prolonged exertion. |
View more information about Air Quality Index and Health Effects.
Questions about forecasts or air quality data?
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