Processed on 2024-03-04 14:18:01 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 Wisconsin 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 Wisconsin

June 2014 – 13 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 373 11 0 0 0 0 19
New 336 48 0 0 0 0 19

June 2015 – 13 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 350 37 0 0 0 0 16
New 307 80 0 0 0 0 16

June 2016 – 29 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 348 9 0 0 0 0 46
New 318 39 0 0 0 0 46

June 2017 – 16 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 393 5 0 0 0 0 36
New 359 39 0 0 0 0 36

June 2018 – 33 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 430 13 0 0 0 0 22
New 376 67 0 0 0 0 22

June 2019 – 17 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 475 12 0 0 0 0 40
New 430 57 0 0 0 0 40

June 2020 – 35 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 506 22 0 0 0 0 30
New 432 96 0 0 0 0 30

June 2021 – 18 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 514 2 0 0 0 0 42
New 471 45 0 0 0 0 42

June 2022 – 18 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 468 25 0 0 0 0 65
New 435 58 0 0 0 0 65

June 2023 – 19 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 135 287 50 54 6 0 26
New 75 347 50 43 17 0 26