Processed on 2024-03-04 13:46:52 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 North Carolina 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 North Carolina

November 2014 – 13 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 236 33 0 0 0 0 10
New 160 109 0 0 0 0 10

November 2015 – 12 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 147 12 0 0 0 0 27
New 125 34 0 0 0 0 27

November 2016 – 31 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 207 107 15 12 0 0 31
New 170 142 17 12 0 0 31

November 2017 – 14 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 328 78 0 0 0 0 28
New 208 198 0 0 0 0 28

November 2018 – 35 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 401 37 0 0 0 0 27
New 341 97 0 0 0 0 27

November 2019 – 20 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 505 86 0 0 0 0 29
New 371 220 0 0 0 0 29

November 2020 – 45 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 569 98 0 0 0 0 46
New 454 213 0 0 0 0 46

November 2021 – 24 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 598 66 1 0 0 0 79
New 477 187 1 0 0 0 79

November 2022 – 25 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 638 42 0 0 0 0 64
New 534 146 0 0 0 0 64

November 2023 – 26 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 523 135 0 0 0 0 55
New 410 248 0 0 0 0 55