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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 forecast is updated once daily, excluding weekends and holidays. Alternatively, you may call the Air Quality Index Hotline at (800) 249-1234 or (860) 424-4167 for the forecast or link to Airnow.gov for the most current air quality information.
Current air quality is provided below the AQI forecast section.
Air Quality for Tuesday, 07/14/26
For current conditions, see map below.
Cautionary StatementsForecast for Tuesday, 07/14/26
For local forecasts, see table below.
Tuesday, 07/14/26
For details, see operating restrictions page.
| Town | Tuesday, 07/14/26 FineParticles (PM2.5) |
Tuesday, 07/14/26 Ozone (O3) |
Wednesday, 07/15/26 FineParticles (PM2.5) |
Wednesday, 07/15/26 Ozone (O3) |
|---|---|---|---|---|
| Bridgeport | 60 | 108 | ||
| Danbury | 5 | 51 | ||
| Greenwich | 60 | 105 | ||
| Hartford | 60 | 67 | ||
| Madison | 54 | 147 | ||
| Middletown | 60 | 54 | ||
| New Haven | 54 | 115 | ||
| New London-Groton | 54 | 133 | ||
| Stafford | 54 | 46 | ||
| Stratford | 60 | 108 | ||
| Torrington | 54 | 46 | ||
| Waterbury | 58 | 54 | ||
| Westport | 60 | 112 |
