Processed on 2024-03-04 13:35:15 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 Nevada 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 Nevada

January 2014 – 6 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 84 68 1 1 0 0 1
New 69 83 1 1 0 0 1

January 2015 – 8 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 99 55 0 0 0 0 1
New 85 69 0 0 0 0 1

January 2016 – 18 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 181 46 1 0 0 0 20
New 156 71 1 0 0 0 20

January 2017 – 12 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 209 39 0 0 0 0 62
New 186 61 1 0 0 0 62

January 2018 – 26 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 290 73 3 2 0 0 4
New 249 113 4 2 0 0 4

January 2019 – 14 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 320 44 0 0 0 0 8
New 263 101 0 0 0 0 8

January 2020 – 35 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 305 62 1 1 0 0 3
New 267 100 1 1 0 0 3

January 2021 – 21 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 465 57 1 0 0 0 4
New 415 107 1 0 0 0 4

January 2022 – 22 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 553 97 1 0 0 0 0
New 463 187 1 0 0 0 0

January 2023 – 21 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 563 48 0 0 0 0 9
New 510 101 0 0 0 0 9