Processed on 2024-03-04 13:52:54 PST.


Disclaimer: Data presented here come from a variety of sources and do not represent official EPA measurements. Please visit AirNow for official measurements.


Cumulative exposure to smoke is an important public health metric. This report summarizes the cumulative number of days air quality monitors in Oklahoma spent in each AQI category during the the month of November.

The tables below include only permanent monitors measuring PM2.5 and show cumulative exposure under existing NAAQS (National Ambient Air Quality Standards) and under the 2024 revised standards for PM2.5.

In the tables and plots below, ‘Old’ designates cumulative days calculated using the 2023 PM2.5 NAAQS while ‘New’ is calculated using the 2024 revised PM2.5 NAAQS. The impact of the NAAQS revision is quite clear.

November in Oklahoma

November 2014 – 9 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 206 6 0 0 0 0 36
New 179 33 0 0 0 0 36

November 2015 – 10 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 256 10 0 0 0 0 44
New 225 41 0 0 0 0 44

November 2016 – 24 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 307 20 0 0 0 0 14
New 246 81 0 0 0 0 14

November 2017 – 12 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 246 65 0 0 0 0 30
New 162 149 0 0 0 0 30

November 2018 – 29 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 360 36 0 0 0 0 38
New 299 97 0 0 0 0 38

November 2019 – 14 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 333 37 0 0 0 0 64
New 264 106 0 0 0 0 64

November 2020 – 28 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 304 49 0 0 0 0 19
New 216 137 0 0 0 0 19

November 2021 – 13 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 378 9 0 0 0 0 16
New 314 73 0 0 0 0 16

November 2022 – 15 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 396 42 0 0 0 0 27
New 321 117 0 0 0 0 27

November 2023 – 15 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 408 35 0 0 0 0 22
New 340 103 0 0 0 0 22