Processed on 2024-03-04 12:58:01 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 May.

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.

May in Florida

May 2014 – 19 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 422 87 0 0 0 0 35
New 238 271 0 0 0 0 35

May 2015 – 20 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 506 54 0 0 0 0 48
New 381 179 0 0 0 0 48

May 2016 – 54 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 659 36 0 0 0 0 41
New 448 247 0 0 0 0 41

May 2017 – 29 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 557 227 0 0 0 0 112
New 373 411 0 0 0 0 112

May 2018 – 53 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 664 54 0 0 0 0 50
New 548 170 0 0 0 0 50

May 2019 – 28 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 629 86 0 0 0 0 53
New 463 252 0 0 0 0 53

May 2020 – 69 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 992 46 0 0 0 0 82
New 825 213 0 0 0 0 82

May 2021 – 37 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 975 51 0 0 0 0 62
New 697 329 0 0 0 0 62

May 2022 – 40 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 1056 114 0 0 0 0 78
New 810 360 0 0 0 0 78

May 2023 – 43 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 1103 131 0 0 0 0 78
New 768 466 0 0 0 0 78