Processed on 2024-03-04 13:35:06 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 Nebraska spent in each AQI category during the the month of December.

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.

December in Nebraska

December 2014 – 1 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 19 12 0 0 0 0 0
New 14 17 0 0 0 0 0

December 2015 – 2 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 58 4 0 0 0 0 0
New 46 16 0 0 0 0 0

December 2016 – 5 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 49 13 0 0 0 0 0
New 25 37 0 0 0 0 0

December 2017 – 2 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 54 6 0 0 0 0 2
New 39 21 0 0 0 0 2

December 2018 – 6 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 81 8 0 0 0 0 4
New 67 22 0 0 0 0 4

December 2019 – 3 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 84 6 0 0 0 0 3
New 63 27 0 0 0 0 3

December 2020 – 7 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 112 11 0 0 0 0 1
New 99 24 0 0 0 0 1

December 2021 – 5 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 135 7 0 0 0 0 13
New 125 17 0 0 0 0 13

December 2022 – 6 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 164 20 0 0 0 0 2
New 151 33 0 0 0 0 2

December 2023 – 6 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 150 15 0 0 0 0 15
New 133 32 0 0 0 0 15