Processed on 2024-03-04 14:03:00 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 Dakota 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 Dakota

November 2014 – 1 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 30 0 0 0 0 0 1
New 28 2 0 0 0 0 1

November 2015 – 3 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 89 1 0 0 0 0 3
New 83 7 0 0 0 0 3

November 2016 – 8 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 88 2 0 0 0 0 3
New 81 9 0 0 0 0 3

November 2017 – 3 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 86 2 0 0 0 0 5
New 78 10 0 0 0 0 5

November 2018 – 8 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 85 0 0 0 0 0 8
New 78 7 0 0 0 0 8

November 2019 – 4 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 88 0 0 0 0 0 5
New 88 0 0 0 0 0 5

November 2020 – 9 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 115 2 0 0 0 0 7
New 107 10 0 0 0 0 7

November 2021 – 5 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 136 1 2 0 0 0 16
New 133 4 2 0 0 0 16

November 2022 – 6 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 162 2 0 0 0 0 22
New 157 7 0 0 0 0 22

November 2023 – 6 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 168 2 0 0 0 0 16
New 159 11 0 0 0 0 16