| Oklahoma Department of Environmental Quality | ||||||
| 2026 PM2.5 Annual Means | ||||||
| Averaged over 3 years (µg/m³) updated through November 2025 | ||||||
| Primary Standard = 9.0 µg/m3 3-Yr Avg. | ||||||
| Secondary Standard = 15 µg/m3 3-Yr Avg. | ||||||
| Site Name | Annual Wtd Mean (µg/m3) | 3-Yr Design Value | ||||
| 2023 | 2024 | 2025* | 2026* | 23-25 | 24-26* | |
| OKC Downtown | 9.5 | 8.0 | 9.4 | 0.0 | 8.9 | |
| Moore | 9.2 | 9.1 | 8.0 | 0.0 | 8.8 | |
| OKC Near Road | 8.9 | 9.1 | 8.5 | 0.0 | 8.8 | |
| Glenpool | 8.1 | 8.4 | 7.8 | 0.0 | 8.1 | |
| Healdton | 7.5 | 8.3 | 6.5 | 0.0 | 7.4 | |
| McAlester | 8.0 | 8.8 | 8.6 | 0.0 | 8.5 | |
| Ponca City | 9.2 | 9.1 | 7.7 | 0.0 | 8.6 | |
| Lawton | 6.9 | 6.6 | 6.8 | 0.0 | 6.8 | |
| Seiling | 7.1 | 7.3 | 7.4 | 0.0 | 7.2 | |
| OKC North | 8.1 | 8.2 | 7.0 | 0.0 | 7.8 | |
| Tulsa Central | 9.1 | 8.4 | 8.6 | 0.0 | 8.7 | |
| *All data is subject to change upon QA/QC -- data collection for 2026 is ongoing. | ||||||
| Correction equation applied to data derived from Teledyne T640/T640x instruments | ||||||