Processed on 2024-03-04 13:15:54 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 July.

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.

July in Louisiana

July 2014 – 10 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 149 155 0 0 0 0 16
New 51 253 0 0 0 0 16

July 2015 – 9 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 147 126 0 0 0 0 15
New 61 212 0 0 0 0 15

July 2016 – 19 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 196 72 0 0 0 0 20
New 119 149 0 0 0 0 20

July 2017 – 9 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 199 68 1 0 0 0 20
New 157 110 1 0 0 0 20

July 2018 – 19 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 120 152 2 0 0 0 14
New 72 200 2 0 0 0 14

July 2019 – 9 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 210 62 0 0 0 0 16
New 145 127 0 0 0 0 16

July 2020 – 19 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 186 89 0 0 0 0 13
New 140 134 1 0 0 0 13

July 2021 – 10 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 207 77 0 0 0 0 36
New 150 134 0 0 0 0 36

July 2022 – 9 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 207 28 0 0 0 0 21
New 166 69 0 0 0 0 21

July 2023 – 13 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 118 126 0 0 0 0 12
New 66 178 0 0 0 0 12