Processed on 2024-03-04 14:16:52 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 West Virginia spent in each AQI category during the the month of November.

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.

November in West Virginia

November 2014 – 0 monitors in AirFire data archive

November 2015 – 0 monitors in AirFire data archive

November 2016 – 1 permanent monitors

November 2017 – 1 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 21 5 0 0 0 0 5
New 10 16 0 0 0 0 5

November 2018 – 2 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 24 6 0 0 0 0 1
New 22 8 0 0 0 0 1

November 2019 – 1 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 12 0 0 0 0 0 19
New 12 0 0 0 0 0 19

November 2020 – 2 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 26 4 0 0 0 0 1
New 17 13 0 0 0 0 1

November 2021 – 2 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 40 20 0 0 0 0 2
New 36 24 0 0 0 0 2

November 2022 – 2 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 15 12 0 0 0 0 4
New 6 21 0 0 0 0 4

November 2023 – 3 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 37 21 0 0 0 0 4
New 25 33 0 0 0 0 4