Processed on 2024-03-04 12:58:42 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 Florida spent in each AQI category during the the month of September.

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.

September in Florida

September 2014 – 19 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 479 50 0 0 0 0 29
New 427 102 0 0 0 0 29

September 2015 – 20 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 497 16 0 0 0 0 76
New 444 69 0 0 0 0 76

September 2016 – 54 permanent monitors

Processing error: Unable to calculate tables.

September 2017 – 29 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 390 89 0 0 0 0 358
New 267 212 0 0 0 0 358

September 2018 – 53 permanent monitors

Processing error: Unable to calculate tables.

September 2019 – 28 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 506 53 0 0 0 0 216
New 390 169 0 0 0 0 216

September 2020 – 69 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 27 3 0 0 0 0 1
New 25 5 0 0 0 0 1

September 2021 – 37 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 873 122 0 0 0 0 90
New 694 301 0 0 0 0 90

September 2022 – 40 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 1000 34 0 0 0 0 175
New 890 144 0 0 0 0 175

September 2023 – 43 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 1055 40 0 0 0 0 176
New 932 163 0 0 0 0 176