Processed on 2024-03-04 13:13:12 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 Kentucky 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 Kentucky

February 2014 – 6 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 127 41 0 0 0 0 0
New 89 79 0 0 0 0 0

February 2015 – 6 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 123 17 0 0 0 0 0
New 95 45 0 0 0 0 0

February 2016 – 12 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 162 12 0 0 0 0 0
New 123 51 0 0 0 0 0

February 2017 – 6 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 126 36 0 0 0 0 6
New 98 64 0 0 0 0 6

February 2018 – 12 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 141 7 0 0 0 0 20
New 108 40 0 0 0 0 20

February 2019 – 6 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 148 18 0 0 0 0 2
New 113 53 0 0 0 0 2

February 2020 – 12 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 165 9 0 0 0 0 0
New 136 38 0 0 0 0 0

February 2021 – 8 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 152 58 0 0 0 0 14
New 108 102 0 0 0 0 14

February 2022 – 9 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 213 33 0 0 0 0 6
New 140 106 0 0 0 0 6

February 2023 – 9 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 222 28 0 0 0 0 2
New 174 76 0 0 0 0 2