Processed on 2024-03-04 14:01:00 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 South 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 South Carolina

November 2014 – 7 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 95 36 0 0 0 0 55
New 61 70 0 0 0 0 55

November 2015 – 7 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 153 25 0 0 0 0 8
New 128 50 0 0 0 0 8

November 2016 – 15 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 133 57 10 8 0 0 9
New 95 94 11 7 1 0 9

November 2017 – 9 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 191 34 0 0 0 0 23
New 145 80 0 0 0 0 23

November 2018 – 19 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 211 10 0 0 0 0 27
New 176 45 0 0 0 0 27

November 2019 – 9 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 189 19 0 0 0 0 40
New 126 82 0 0 0 0 40

November 2020 – 18 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 190 15 0 0 0 0 43
New 160 45 0 0 0 0 43

November 2021 – 9 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 202 39 0 0 0 0 38
New 160 81 0 0 0 0 38

November 2022 – 10 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 206 31 0 0 0 0 11
New 144 93 0 0 0 0 11

November 2023 – 11 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 237 84 0 0 0 0 20
New 191 130 0 0 0 0 20