Processed on 2024-03-04 13:51:13 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 January.

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.

January in Oklahoma

January 2014 – 9 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 250 16 0 0 0 0 13
New 231 35 0 0 0 0 13

January 2015 – 10 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 207 13 0 0 0 0 59
New 173 47 0 0 0 0 59

January 2016 – 24 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 230 26 0 0 0 0 54
New 196 60 0 0 0 0 54

January 2017 – 12 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 248 18 0 0 0 0 75
New 221 45 0 0 0 0 75

January 2018 – 29 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 299 46 0 0 0 0 27
New 248 97 0 0 0 0 27

January 2019 – 14 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 367 60 0 0 0 0 7
New 291 136 0 0 0 0 7

January 2020 – 28 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 375 22 0 0 0 0 37
New 329 68 0 0 0 0 37

January 2021 – 13 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 218 107 0 0 0 0 47
New 171 154 0 0 0 0 47

January 2022 – 15 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 373 33 0 0 0 0 28
New 305 101 0 0 0 0 28

January 2023 – 15 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 350 72 1 0 0 0 11
New 248 174 1 0 0 0 11