Processed on 2024-03-04 14:05:18 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 Texas 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 Texas

January 2014 – 12 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 343 18 1 0 0 0 10
New 314 47 1 0 0 0 10

January 2015 – 12 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 348 21 0 0 0 0 3
New 304 65 0 0 0 0 3

January 2016 – 48 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 313 12 0 0 0 0 16
New 270 55 0 0 0 0 16

January 2017 – 14 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 230 10 0 2 0 0 6
New 207 33 0 1 1 0 6

January 2018 – 64 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 348 38 0 0 0 0 17
New 291 95 0 0 0 0 17

January 2019 – 30 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 601 37 2 2 0 0 71
New 521 117 2 2 0 0 71

January 2020 – 67 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 843 41 2 1 0 0 43
New 733 151 2 1 0 0 43

January 2021 – 37 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 801 113 0 0 0 0 47
New 629 284 1 0 0 0 47

January 2022 – 49 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 974 119 1 1 0 0 52
New 790 303 1 1 0 0 52

January 2023 – 47 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 1211 192 3 1 1 0 49
New 1017 386 3 1 0 1 49