Processed on 2024-03-04 14:09:18 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 January.

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.

January in Vermont

January 2014 – 4 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 89 20 2 0 0 0 13
New 76 33 2 0 0 0 13

January 2015 – 4 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 93 22 1 0 0 0 8
New 84 30 2 0 0 0 8

January 2016 – 8 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 105 16 0 0 0 0 3
New 89 32 0 0 0 0 3

January 2017 – 4 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 111 11 0 0 0 0 2
New 110 12 0 0 0 0 2

January 2018 – 8 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 94 30 0 0 0 0 0
New 76 48 0 0 0 0 0

January 2019 – 4 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 109 15 0 0 0 0 0
New 101 23 0 0 0 0 0

January 2020 – 8 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 109 15 0 0 0 0 0
New 94 30 0 0 0 0 0

January 2021 – 4 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 99 25 0 0 0 0 0
New 87 37 0 0 0 0 0

January 2022 – 4 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 101 18 0 0 0 0 5
New 75 44 0 0 0 0 5

January 2023 – 4 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 121 3 0 0 0 0 0
New 109 15 0 0 0 0 0