Processed on 2024-03-04 14:20:12 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 Wyoming spent in each AQI category during the the month of July.

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.

July in Wyoming

July 2014 – 5 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 111 13 0 0 0 0 4
New 97 27 0 0 0 0 4

July 2015 – 5 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 142 2 2 0 0 0 14
New 131 13 2 0 0 0 14

July 2016 – 11 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 38 7 0 0 0 0 19
New 34 11 0 0 0 0 19

July 2017 – 5 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 100 0 0 0 0 0 28
New 96 4 0 0 0 0 28

July 2018 – 11 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 60 2 0 0 0 0 2
New 60 2 0 0 0 0 2

July 2019 – 3 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 93 0 0 0 0 0 3
New 93 0 0 0 0 0 3

July 2020 – 15 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 89 0 0 0 0 0 7
New 89 0 0 0 0 0 7

July 2021 – 15 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 159 98 3 0 0 0 28
New 111 146 3 0 0 0 28

July 2022 – 16 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 352 4 1 0 0 0 27
New 337 19 1 0 0 0 27

July 2023 – 18 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 362 12 2 0 0 0 40
New 350 24 2 0 0 0 40