Deltona, Florida Air Quality
Deltona air quality today — the AQI, the main pollutant, and whether it’s safe to exercise outside right now
Deltona, FL · Air quality right now
The air quality index in Deltona, FL is 52 (Moderate) right now — acceptable for most people.
Is it safe to be outside in Deltona today?
AQI 52 Yes — air quality is Moderate
Fine for most; unusually sensitive people can take it easy.Main pollutant: PM2.5Observed 12:00 AM EDT
Pollutants right now
- PM2.518 µg/m³Main pollutantfine particles — smoke, exhaust, soot
- PM1020 µg/m³coarse particles — dust, pollen, ash
- Ozone13 µg/m³smog — builds on hot, sunny days
- NO₂34 µg/m³nitrogen dioxide — traffic, combustion
ExerciseOK to run for most; sensitive athletes can ease the intensity.
How to read Deltona’s air quality
Guides: The AQI Scale, Explained · Air Quality Alerts, Decoded · How to Read a Wildfire Smoke Map · Why Wildfire Smoke Travels 1,000 Miles.
Air quality over time in Deltona
Across the EPA’s county records from 2020 to 2025, Deltona’s cleanest year was 2024 (median AQI 39) and its most polluted was 2021 (median AQI 47); the typical (median) day has trended cleaner since 2020.
| Year | Median AQI | Unhealthy+ | Main pollutant | USG | Moderate | Good |
|---|---|---|---|---|---|---|
| 2020 | 44 | 0 | PM2.5 | 0 | 110 | 252 |
| 2021 | 47 | 0 | PM2.5 | 0 | 140 | 223 |
| 2022 | 45 | 0 | PM2.5 | 0 | 123 | 242 |
| 2023 | 44 | 0 | PM2.5 | 1 | 102 | 262 |
| 2024 | 39 | 0 | PM2.5 | 0 | 67 | 293 |
| 2025 | 41 | 0 | Ozone | 0 | 68 | 297 |
“USG” is Unhealthy for Sensitive Groups (AQI 101–150); “Unhealthy+” combines the Unhealthy, Very Unhealthy, and Hazardous days. In 2024 the EPA tightened the annual fine-particle (PM2.5) standard to 9 µg/m³ from the previous 12 µg/m³, so counties near the old limit read worse against the new one. Source: EPA AQS annual summaries, 2020–2025.
Frequently asked
- What was the worst year for air quality in Deltona?
- In the EPA's 2020–2025 county records, 2023 had the most days above AQI 100: 1 day (1 Unhealthy for Sensitive Groups, 0 Unhealthy or worse). The highest median AQI came in 2021 (47; 2023's was 44).
- How many unhealthy air days does Deltona have?
- Across 2020–2025, under 1% of the days reported for Deltona's county had an AQI above 100 (1 of 2180), fewer than one a year on average. 2025 had 0 days.
- What's the main air pollutant in Deltona?
- PM2.5 drove Deltona's county AQI on the most days in 5 of 6 years (2020–2025); Ozone in 2025.