Processed on 2024-03-04 12:42:44 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 Alaska 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 Alaska

November 2014 – 4 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 26 44 8 9 0 0 6
New 17 52 9 9 0 0 6

November 2015 – 7 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 68 36 5 2 0 0 13
New 57 47 5 2 0 0 13

November 2016 – 9 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 46 56 6 6 0 0 10
New 32 70 5 7 0 0 10

November 2017 – 4 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 66 46 3 3 0 0 6
New 51 61 3 3 0 0 6

November 2018 – 10 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 72 39 6 1 0 0 6
New 56 55 6 1 0 0 6

November 2019 – 6 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 123 13 2 0 0 0 48
New 113 23 2 0 0 0 48

November 2020 – 9 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 74 57 8 4 0 0 12
New 54 76 9 4 0 0 12

November 2021 – 5 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 94 40 1 2 0 0 18
New 78 56 1 2 0 0 18

November 2022 – 6 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 117 46 3 0 0 0 20
New 102 61 3 0 0 0 20

November 2023 – 6 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 133 20 3 0 0 0 30
New 120 33 3 0 0 0 30