Processed on 2024-03-04 12:57:40 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 March.

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.

March in Florida

March 2014 – 19 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 462 49 0 0 0 0 16
New 307 204 0 0 0 0 16

March 2015 – 20 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 421 76 0 0 0 0 61
New 315 182 0 0 0 0 61

March 2016 – 54 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 543 30 0 0 0 0 109
New 338 235 0 0 0 0 109

March 2017 – 29 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 605 72 0 0 0 0 36
New 421 256 0 0 0 0 36

March 2018 – 53 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 608 154 0 0 0 0 13
New 393 369 0 0 0 0 13

March 2019 – 28 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 602 95 0 0 0 0 16
New 437 260 0 0 0 0 16

March 2020 – 69 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 824 123 0 0 0 0 138
New 602 345 0 0 0 0 138

March 2021 – 37 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 884 76 0 0 0 0 32
New 641 319 0 0 0 0 32

March 2022 – 40 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 1028 138 0 0 0 0 43
New 775 391 0 0 0 0 43

March 2023 – 43 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 983 277 0 0 0 0 11
New 654 606 0 0 0 0 11