Processed on 2024-03-04 14:09:27 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 Vermont 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 Vermont

February 2014 – 4 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 71 25 1 0 0 0 15
New 62 34 1 0 0 0 15

February 2015 – 4 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 77 33 2 0 0 0 0
New 61 49 2 0 0 0 0

February 2016 – 8 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 107 3 0 0 0 0 6
New 101 9 0 0 0 0 6

February 2017 – 4 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 101 8 0 0 0 0 3
New 89 20 0 0 0 0 3

February 2018 – 8 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 96 16 0 0 0 0 0
New 80 32 0 0 0 0 0

February 2019 – 4 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 103 9 0 0 0 0 0
New 89 23 0 0 0 0 0

February 2020 – 8 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 89 27 0 0 0 0 0
New 71 45 0 0 0 0 0

February 2021 – 4 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 99 13 0 0 0 0 0
New 86 26 0 0 0 0 0

February 2022 – 4 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 101 9 0 0 0 0 2
New 90 20 0 0 0 0 2

February 2023 – 4 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 104 8 0 0 0 0 0
New 87 25 0 0 0 0 0