Processed on 2024-03-04 14:11:23 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 Virginia spent in each AQI category during the the month of February.

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.

February in Virginia

February 2014 – 7 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 142 54 0 0 0 0 0
New 117 79 0 0 0 0 0

February 2015 – 7 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 161 35 0 0 0 0 0
New 111 85 0 0 0 0 0

February 2016 – 16 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 185 11 0 0 0 0 7
New 170 26 0 0 0 0 7

February 2017 – 9 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 132 16 0 0 0 0 20
New 114 34 0 0 0 0 20

February 2018 – 12 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 158 5 0 0 0 0 5
New 144 19 0 0 0 0 5

February 2019 – 7 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 125 12 0 0 0 0 3
New 110 27 0 0 0 0 3

February 2020 – 14 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 176 6 0 0 0 0 21
New 157 25 0 0 0 0 21

February 2021 – 7 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 155 31 0 0 0 0 10
New 127 59 0 0 0 0 10

February 2022 – 12 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 146 20 0 0 0 0 2
New 112 54 0 0 0 0 2

February 2023 – 26 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 279 27 0 0 0 0 2
New 221 85 0 0 0 0 2