Processed on 2024-03-04 13:03:15 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 Idaho 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 Idaho

January 2014 – 9 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 69 21 0 0 0 0 3
New 60 30 0 0 0 0 3

January 2015 – 17 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 59 10 0 0 0 0 24
New 50 19 0 0 0 0 24

January 2016 – 32 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 156 35 10 3 0 0 13
New 136 53 12 3 0 0 13

January 2017 – 19 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 112 89 20 1 0 0 26
New 87 111 23 1 0 0 26

January 2018 – 37 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 234 70 4 0 0 0 2
New 189 115 4 0 0 0 2

January 2019 – 22 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 279 82 2 0 0 0 9
New 224 137 2 0 0 0 9

January 2020 – 34 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 347 52 2 0 0 0 2
New 305 93 3 0 0 0 2

January 2021 – 19 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 246 86 1 0 0 0 8
New 185 147 1 0 0 0 8

January 2022 – 23 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 218 116 2 0 0 0 5
New 163 171 2 0 0 0 5

January 2023 – 17 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 294 47 0 0 0 0 0
New 248 93 0 0 0 0 0