Processed on 2024-03-04 13:13:52 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 Kentucky spent in each AQI category during the the month of June.

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.

June in Kentucky

June 2014 – 6 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 141 39 0 0 0 0 6
New 85 95 0 0 0 0 6

June 2015 – 6 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 92 86 0 0 0 0 8
New 63 115 0 0 0 0 8

June 2016 – 12 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 117 57 0 0 0 0 12
New 64 110 0 0 0 0 12

June 2017 – 6 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 143 30 0 0 0 0 13
New 87 86 0 0 0 0 13

June 2018 – 12 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 84 36 0 0 0 0 4
New 47 73 0 0 0 0 4

June 2019 – 6 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 164 10 0 0 0 0 12
New 148 26 0 0 0 0 12

June 2020 – 12 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 165 13 0 0 0 0 8
New 133 44 1 0 0 0 8

June 2021 – 8 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 213 14 0 0 0 0 21
New 174 53 0 0 0 0 21

June 2022 – 9 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 211 39 0 0 0 0 29
New 156 94 0 0 0 0 29

June 2023 – 9 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 91 156 16 7 0 0 9
New 53 193 17 7 0 0 9