Air Quality / Theodore Roosevelt National Park
Theodore Roosevelt National Park
North Dakota — EPA AirNow monitoring station
Current AQI (PM2.5)
41
Good8/24/2026, 7:00:00 PM
Recent Readings
| Time | Pollutant | AQI | Category | Type |
|---|---|---|---|---|
| 8/24/2026, 7:00:00 PM | PM2.5 | 41 | Good | observation |
| 8/24/2026, 7:00:00 PM | OZONE | 32 | Good | observation |
| 8/24/2026, 6:00:00 PM | OZONE | 31 | Good | observation |
| 8/24/2026, 6:00:00 PM | PM2.5 | 38 | Good | observation |
| 8/24/2026, 5:00:00 PM | PM2.5 | 34 | Good | observation |
| 8/24/2026, 5:00:00 PM | OZONE | 28 | Good | observation |
| 8/24/2026, 4:00:00 PM | OZONE | 25 | Good | observation |
| 8/24/2026, 4:00:00 PM | PM2.5 | 32 | Good | observation |
| 8/24/2026, 3:00:00 PM | PM2.5 | 29 | Good | observation |
| 8/24/2026, 3:00:00 PM | OZONE | 25 | Good | observation |
| 8/24/2026, 2:00:00 PM | OZONE | 24 | Good | observation |
| 8/24/2026, 2:00:00 PM | PM2.5 | 28 | Good | observation |
| 8/24/2026, 1:00:00 PM | OZONE | 23 | Good | observation |
| 8/24/2026, 1:00:00 PM | PM2.5 | 28 | Good | observation |
| 8/24/2026, 12:00:00 PM | OZONE | 21 | Good | observation |
| 8/24/2026, 12:00:00 PM | PM2.5 | 28 | Good | observation |
| 8/24/2026, 11:00:00 AM | PM2.5 | 28 | Good | observation |
| 8/24/2026, 11:00:00 AM | OZONE | 25 | Good | observation |
| 8/24/2026, 10:00:00 AM | OZONE | 24 | Good | observation |
| 8/24/2026, 10:00:00 AM | PM2.5 | 28 | Good | observation |
| 8/24/2026, 9:00:00 AM | OZONE | 24 | Good | observation |
| 8/24/2026, 9:00:00 AM | PM2.5 | 28 | Good | observation |
| 8/24/2026, 8:00:00 AM | PM2.5 | 28 | Good | observation |
| 8/24/2026, 8:00:00 AM | OZONE | 25 | Good | observation |
| 8/24/2026, 7:00:00 AM | OZONE | 27 | Good | observation |
| 8/24/2026, 7:00:00 AM | PM2.5 | 29 | Good | observation |
| 8/24/2026, 6:00:00 AM | OZONE | 27 | Good | observation |
| 8/24/2026, 6:00:00 AM | PM2.5 | 30 | Good | observation |
| 8/24/2026, 5:00:00 AM | OZONE | 27 | Good | observation |
| 8/24/2026, 5:00:00 AM | PM2.5 | 27 | Good | observation |
| 8/24/2026, 4:00:00 AM | PM2.5 | 27 | Good | observation |
| 8/24/2026, 4:00:00 AM | OZONE | 28 | Good | observation |
| 8/24/2026, 3:00:00 AM | OZONE | 30 | Good | observation |
| 8/24/2026, 3:00:00 AM | PM2.5 | 26 | Good | observation |
| 8/24/2026, 2:00:00 AM | PM2.5 | 24 | Good | observation |
| 8/24/2026, 2:00:00 AM | OZONE | 31 | Good | observation |
| 8/24/2026, 1:00:00 AM | PM2.5 | 21 | Good | observation |
| 8/24/2026, 1:00:00 AM | OZONE | 33 | Good | observation |
| 8/24/2026, 12:00:00 AM | PM2.5 | 24 | Good | observation |
| 8/24/2026, 12:00:00 AM | OZONE | 35 | Good | observation |
| 8/23/2026, 11:00:00 PM | PM2.5 | 33 | Good | observation |
| 8/23/2026, 11:00:00 PM | OZONE | 35 | Good | observation |
| 8/23/2026, 10:00:00 PM | PM2.5 | 33 | Good | observation |
| 8/23/2026, 10:00:00 PM | OZONE | 34 | Good | observation |
| 8/23/2026, 9:00:00 PM | PM2.5 | 32 | Good | observation |
| 8/23/2026, 9:00:00 PM | OZONE | 34 | Good | observation |
| 8/23/2026, 8:00:00 PM | PM2.5 | 44 | Good | observation |
| 8/23/2026, 8:00:00 PM | OZONE | 34 | Good | observation |
| 8/23/2026, 7:00:00 PM | OZONE | 30 | Good | observation |
| 8/23/2026, 7:00:00 PM | PM2.5 | 48 | Good | observation |
Nearby Stations
Current AirNow data are preliminary and may be revised. Source: EPA AirNow and participating air quality agencies.