Processed on 2024-03-04 13:36:42 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 October.

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.

October in Nevada

October 2014 – 6 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 159 10 0 0 0 0 23
New 133 36 0 0 0 0 23

October 2015 – 8 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 165 3 0 0 0 0 24
New 150 18 0 0 0 0 24

October 2016 – 18 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 215 17 0 0 0 0 24
New 189 43 0 0 0 0 24

October 2017 – 12 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 269 25 0 0 0 0 26
New 219 75 0 0 0 0 26

October 2018 – 26 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 370 5 0 0 0 0 41
New 349 26 0 0 0 0 41

October 2019 – 14 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 324 31 0 0 0 0 29
New 280 75 0 0 0 0 29

October 2020 – 35 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 365 128 3 0 0 0 16
New 270 223 3 0 0 0 16

October 2021 – 21 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 604 36 0 0 0 0 32
New 563 77 0 0 0 0 32

October 2022 – 22 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 607 34 0 0 0 0 31
New 576 65 0 0 0 0 31

October 2023 – 21 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 607 26 0 0 0 0 39
New 564 69 0 0 0 0 39