Processed on 2024-03-04 14:05:00 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 Tennessee 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 Tennessee

November 2014 – 6 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 118 61 0 0 0 0 7
New 79 100 0 0 0 0 7

November 2015 – 6 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 157 11 0 0 0 0 18
New 125 43 0 0 0 0 18

November 2016 – 13 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 39 79 22 35 3 0 8
New 25 93 22 33 4 1 8

November 2017 – 7 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 148 40 0 0 0 0 29
New 101 87 0 0 0 0 29

November 2018 – 16 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 207 33 0 0 0 0 8
New 174 66 0 0 0 0 8

November 2019 – 8 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 208 30 0 0 0 0 10
New 154 84 0 0 0 0 10

November 2020 – 16 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 204 32 0 0 0 0 12
New 170 66 0 0 0 0 12

November 2021 – 9 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 233 37 0 0 0 0 9
New 180 90 0 0 0 0 9

November 2022 – 10 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 231 26 0 0 0 0 22
New 188 69 0 0 0 0 22

November 2023 – 11 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 237 56 0 0 0 0 17
New 196 97 0 0 0 0 17