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Air Quality Index (AQI)
The U. S. Environmental Protection Agency (EPA) has
provided a scale called the Air
Quality Index (AQI) for rating air quality. This scale is based on the
National Ambient Air Quality Standards
(NAAQS). The AQI is not routinely updated
on weekends and during holiday periods. On those days, please call the Air
Quality Index Hotline at (800) 249-1234 or (860) 424-4167 for the most current air quality
information.
| Yesterday's
Air Quality |
{Air Quality Moderate to Unhealthy for Sensitive Groups} |
| Today's
Air Quality |
{Air Quality USG to Unhealthy} |
| Tomorrow's
Forecasted Air Quality |
{Air Quality USG to Unhealthy} |
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{AQI Logo}
{AQI Scale} |
Historical Ozone Data
Tips for ozone action days
Current PM2.5 AQI from EPA AIRNow
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{Current PM2.5 AQI Map for CT, NY and NJ}
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{AQI Logo}
{AQI Scale}
Particle pollution data are generated using monitoring techniques that
approximate the Federal Reference Method. The data are published as soon as
practical after the end of each hour and as such are not fully validated.
Therefore, data are only approved for the expressed purpose of reporting and
forecasting the AQI.
EPA AIRNow
{Exiting DEP Website}
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For today's air quality forecast for the Northeast region, please go to the
Northeast Air Quality Forecast on the
EPA AIRNow website.
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| {DEP Logo} |
DEP's Air Quality Index: (860) 424-4167 |
{American Lung Association Logo} |
| American Lung Association's air pollution or lung health
information: 1-800-LUNG-USA |
| State clean air programs: 1-800-249-1234 |
| Department of Environmental Protection |
| 79 Elm Street, Hartford, CT 06106-5127 |
If you have any questions regarding the Air
Quality Forecast, please contact the Bureau of Air Management by phone at (860) 424-3027
or by e-mail.
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