Processed on 2024-03-04 13:52:04 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 June.

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.

June in Oklahoma

June 2014 – 9 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 215 53 0 0 0 0 11
New 175 93 0 0 0 0 11

June 2015 – 10 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 134 45 0 0 0 0 69
New 107 72 0 0 0 0 69

June 2016 – 24 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 215 71 0 0 0 0 55
New 152 134 0 0 0 0 55

June 2017 – 12 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 284 33 0 0 0 0 24
New 214 103 0 0 0 0 24

June 2018 – 29 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 328 60 0 0 0 0 46
New 189 199 0 0 0 0 46

June 2019 – 14 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 330 57 0 0 0 0 47
New 282 105 0 0 0 0 47

June 2020 – 28 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 266 101 12 1 0 0 23
New 189 176 14 1 0 0 23

June 2021 – 13 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 268 77 0 0 0 0 27
New 201 144 0 0 0 0 27

June 2022 – 15 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 229 146 3 0 0 0 56
New 164 211 3 0 0 0 56

June 2023 – 15 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 283 143 0 0 0 0 39
New 173 253 0 0 0 0 39