Processed on 2024-03-04 13:59:28 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 February.

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.

February in South Carolina

February 2014 – 7 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 119 40 0 0 0 0 37
New 69 90 0 0 0 0 37

February 2015 – 7 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 146 22 0 0 0 0 28
New 88 80 0 0 0 0 28

February 2016 – 15 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 139 23 1 0 0 0 40
New 110 52 1 0 0 0 40

February 2017 – 9 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 102 54 0 0 0 0 12
New 73 83 0 0 0 0 12

February 2018 – 19 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 110 4 0 0 0 0 82
New 95 19 0 0 0 0 82

February 2019 – 9 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 173 23 0 0 0 0 56
New 135 61 0 0 0 0 56

February 2020 – 18 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 219 10 0 0 0 0 32
New 194 35 0 0 0 0 32

February 2021 – 9 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 190 21 0 0 0 0 13
New 167 44 0 0 0 0 13

February 2022 – 10 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 168 42 0 0 0 0 14
New 132 78 0 0 0 0 14

February 2023 – 11 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 191 66 0 0 0 0 23
New 143 114 0 0 0 0 23