Processed on 2024-03-04 13:15:41 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 Louisiana 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 Louisiana

June 2014 – 10 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 184 97 5 1 0 0 23
New 136 145 5 1 0 0 23

June 2015 – 9 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 126 134 0 0 0 0 19
New 70 190 0 0 0 0 19

June 2016 – 19 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 188 55 0 0 0 0 36
New 120 123 0 0 0 0 36

June 2017 – 9 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 225 20 0 0 0 0 34
New 187 58 0 0 0 0 34

June 2018 – 19 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 186 82 1 0 0 0 10
New 115 153 1 0 0 0 10

June 2019 – 9 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 139 103 0 0 0 0 37
New 80 162 0 0 0 0 37

June 2020 – 19 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 191 64 2 0 0 0 22
New 137 118 2 0 0 0 22

June 2021 – 10 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 237 32 0 0 0 0 41
New 187 82 0 0 0 0 41

June 2022 – 9 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 126 79 9 0 0 0 34
New 75 130 9 0 0 0 34

June 2023 – 13 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 140 83 0 0 0 0 25
New 82 141 0 0 0 0 25