Air Quality / Greater New Castle County
Greater New Castle County
Delaware — EPA AirNow monitoring station
Current AQI (PM2.5)
39
Good8/27/2026, 4:00:00 PM
Recent Readings
| Time | Pollutant | AQI | Category | Type |
|---|---|---|---|---|
| 8/27/2026, 4:00:00 PM | PM2.5 | 39 | Good | forecast |
| 8/27/2026, 4:00:00 PM | OZONE | 45 | Good | forecast |
| 8/26/2026, 4:00:00 PM | OZONE | 58 | Moderate | forecast |
| 8/26/2026, 4:00:00 PM | PM2.5 | 55 | Moderate | forecast |
| 8/25/2026, 4:00:00 PM | OZONE | 46 | Good | forecast |
| 8/25/2026, 4:00:00 PM | PM2.5 | 44 | Good | forecast |
| 8/24/2026, 7:00:00 PM | OZONE | 32 | Good | observation |
| 8/24/2026, 7:00:00 PM | PM2.5 | 45 | Good | observation |
| 8/24/2026, 6:00:00 PM | OZONE | 32 | Good | observation |
| 8/24/2026, 6:00:00 PM | PM2.5 | 41 | Good | observation |
| 8/24/2026, 5:00:00 PM | OZONE | 32 | Good | observation |
| 8/24/2026, 5:00:00 PM | PM2.5 | 39 | Good | observation |
| 8/24/2026, 4:00:00 PM | PM2.5 | 62 | Moderate | forecast |
| 8/24/2026, 4:00:00 PM | OZONE | 25 | Good | observation |
| 8/24/2026, 4:00:00 PM | OZONE | 47 | Good | forecast |
| 8/24/2026, 4:00:00 PM | PM2.5 | 41 | Good | observation |
| 8/24/2026, 3:00:00 PM | OZONE | 20 | Good | observation |
| 8/24/2026, 3:00:00 PM | PM2.5 | 44 | Good | observation |
| 8/24/2026, 2:00:00 PM | OZONE | 15 | Good | observation |
| 8/24/2026, 2:00:00 PM | PM2.5 | 46 | Good | observation |
| 8/24/2026, 1:00:00 PM | OZONE | 11 | Good | observation |
| 8/24/2026, 1:00:00 PM | PM2.5 | 47 | Good | observation |
| 8/24/2026, 12:00:00 PM | PM2.5 | 49 | Good | observation |
| 8/24/2026, 12:00:00 PM | OZONE | 6 | Good | observation |
| 8/24/2026, 11:00:00 AM | OZONE | 6 | Good | observation |
| 8/24/2026, 11:00:00 AM | PM2.5 | 52 | Moderate | observation |
| 8/24/2026, 10:00:00 AM | OZONE | 6 | Good | observation |
| 8/24/2026, 10:00:00 AM | PM2.5 | 52 | Moderate | observation |
| 8/24/2026, 9:00:00 AM | PM2.5 | 52 | Moderate | observation |
| 8/24/2026, 9:00:00 AM | OZONE | 4 | Good | observation |
| 8/24/2026, 8:00:00 AM | OZONE | 4 | Good | observation |
| 8/24/2026, 8:00:00 AM | PM2.5 | 49 | Good | observation |
| 8/24/2026, 7:00:00 AM | PM2.5 | 48 | Good | observation |
| 8/24/2026, 7:00:00 AM | OZONE | 6 | Good | observation |
| 8/24/2026, 6:00:00 AM | PM2.5 | 47 | Good | observation |
| 8/24/2026, 6:00:00 AM | OZONE | 4 | Good | observation |
| 8/24/2026, 5:00:00 AM | OZONE | 3 | Good | observation |
| 8/24/2026, 5:00:00 AM | PM2.5 | 46 | Good | observation |
| 8/24/2026, 4:00:00 AM | PM2.5 | 45 | Good | observation |
| 8/24/2026, 4:00:00 AM | OZONE | 8 | Good | observation |
| 8/24/2026, 3:00:00 AM | PM2.5 | 46 | Good | observation |
| 8/24/2026, 3:00:00 AM | OZONE | 10 | Good | observation |
| 8/24/2026, 2:00:00 AM | PM2.5 | 47 | Good | observation |
| 8/24/2026, 2:00:00 AM | OZONE | 14 | Good | observation |
| 8/24/2026, 1:00:00 AM | OZONE | 17 | Good | observation |
| 8/24/2026, 1:00:00 AM | PM2.5 | 48 | Good | observation |
| 8/24/2026, 12:00:00 AM | OZONE | 23 | Good | observation |
| 8/24/2026, 12:00:00 AM | PM2.5 | 41 | Good | observation |
| 8/23/2026, 11:00:00 PM | PM2.5 | 40 | Good | observation |
| 8/23/2026, 11:00:00 PM | OZONE | 32 | Good | observation |
Nearby Stations
Current AirNow data are preliminary and may be revised. Source: EPA AirNow and participating air quality agencies.