Air Quality Forecast Guidance

These map's show NOAA's National Weather Service Air Quality Forecast Guidance. Ozone is shown as 1-hour and 8-hour concentrations (in parts per billion or ppb), updated twice daily.
Official Air Quality point forecasts, issued by state and local air quality forecasters, along with additional information on air quality can be found under EPA's AIRNow site.
Surface and column-average concentrations of predicted smoke for large fires are displayed as 1-hour averages (in micrograms per cubic meter), updated each day.

Fire locations are provided by NOAA / NESDIS' Hazard Mapping System.

For further information, see the Air Resources Laboratory web site.

North East Air Quality - Avg Ozone Concentration (PPB)

Northern VT, NH, ME Air Quality - Avg Ozone Concentration (PPB)

Northern NH Air Quality

AIR QUALITY GUIDE FOR PARTICLE POLLUTION

Air Quality	Air Quality Index	Health Advisory
Good	0-50	None.
Moderate	51-100	Unusually sensitive people should consider reducing prolonged or heavy exertion.
Unhealthy for Sensitive Groups	101-150	People with heart or lung disease, older adults, and children should reduce prolonged or heavy exertion.
Unhealthy	151-200	People with heart or lung disease, older adults, and children should avoid prolonged or heavy exertion. Everyone else should reduce prolonged or heavy exertion.
Very Unhealthy (Alert)	201-300	People with heart or lung disease, older adults, and children should avoid all physical activity outdoors. Everyone else should avoid prolonged or heavy exertion.