Processed on 2024-03-04 14:16:24 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 August.

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.

August in West Virginia

August 2014 – 0 monitors in AirFire data archive

August 2015 – 0 monitors in AirFire data archive

August 2016 – 1 permanent monitors

August 2017 – 1 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 22 9 0 0 0 0 1
New 12 19 0 0 0 0 1

August 2018 – 2 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 24 4 0 0 0 0 4
New 12 16 0 0 0 0 4

August 2019 – 1 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 13 0 0 0 0 0 19
New 11 2 0 0 0 0 19

August 2020 – 2 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 29 2 0 0 0 0 1
New 24 7 0 0 0 0 1

August 2021 – 2 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 40 22 0 0 0 0 2
New 23 39 0 0 0 0 2

August 2022 – 2 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 25 4 0 0 0 0 3
New 13 16 0 0 0 0 3

August 2023 – 3 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 37 16 0 0 0 0 11
New 29 24 0 0 0 0 11