| Oklahoma Department of Environmental Quality | ||||||
| 2026 PM2.5 | ||||||
| 8th Highest Daily 24 hour average (µg/m³) through January 25, 2026 | ||||||
| Standard: 98th percentile of the 24-hour data shall not exceed 35 µg/m³ | ||||||
| Site | 98th Percentile (µg/m³) | 3-yr Avg. | ||||
| 2023 | 2024 | 2025 | 2026* | 23-25 | 24-26* | |
| Moore | 20.5 | 20.3 | 17.1 | 7.8 | 19.3 | 15.1 |
| OKC Near Road | 19.5 | 19.6 | 17.7 | 8.5 | 18.9 | 15.3 |
| Glenpool | 16.8 | 21.2 | 21.3 | 11.5 | 19.8 | 18.0 |
| Oklahoma Union (Nowata County) | 23.8 | - | - | - | - | - |
| Healdton | 17.0 | 20.2 | 14.2 | 6.8 | 17.1 | 13.7 |
| McAlester | 18.5 | 19.4 | 24.0 | 11.9 | 20.6 | 18.4 |
| Ponca City | 22.4 | 24.4 | 18.3 | 7.2 | 21.7 | 16.6 |
| Lawton | 17.4 | 14.7 | 13.8 | 7.5 | 15.3 | 12.0 |
| Seiling | 21.1 | 18.0 | 16.3 | 4.2 | 18.5 | 12.8 |
| OKC North | 18.1 | 19.7 | 15.8 | 6.9 | 17.9 | 14.1 |
| Tulsa Central** | 20.0 | 19.8 | 19.3 | 0.0 | 19.7 | 13.0 |
| Copan | - | 27.7 | 20.0 | - | - | - |
| 8th Highs are considered 98th percentile until end of year data completeness is calculated. | ||||||
| *All data is subject to change upon QA/QC -- data collection for 2026 is ongoing. | ||||||