Processed on 2024-03-04 13:16:41 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 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 Louisiana

November 2014 – 10 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 226 42 0 0 0 0 11
New 153 115 0 0 0 0 11

November 2015 – 9 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 244 16 0 0 0 0 19
New 189 71 0 0 0 0 19

November 2016 – 19 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 188 57 0 0 0 0 34
New 113 132 0 0 0 0 34

November 2017 – 9 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 207 61 0 0 0 0 11
New 131 137 0 0 0 0 11

November 2018 – 19 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 243 26 0 0 0 0 10
New 175 94 0 0 0 0 10

November 2019 – 9 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 94 44 0 0 0 0 141
New 61 77 0 0 0 0 141

November 2020 – 19 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 203 53 0 0 0 0 23
New 147 108 1 0 0 0 23

November 2021 – 10 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 184 74 0 0 0 0 21
New 123 135 0 0 0 0 21

November 2022 – 9 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 175 53 0 0 0 0 20
New 136 92 0 0 0 0 20

November 2023 – 13 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 272 38 0 0 0 0 31
New 187 123 0 0 0 0 31