Interlachen, Florida Air Quality
Interlachen has a median AQI of 21, earning an air quality grade of A+ — excellent air quality that ranks better than 94% of US cities. Air quality has been trending worse over the past decade, a concern for local residents and health officials. Particulate matter (PM10) is the primary concern, often linked to vehicle traffic, industrial activity, and wildfire smoke. In 2025, Interlachen recorded 262 good air quality days (96% of monitored days).
Population: 1,923 • County: Putnam
Current AQI
Quick Facts
| Current AQI | 44 — Good |
| Air Quality Grade | A+ |
| Median AQI (2025) | 21 |
| vs. U.S. Cities | Better than 94% |
| Primary Pollutant | PM10 |
| Unhealthy Days/Year | 0 |
| 10-Year Trend | ↓ Worsening |
| Data Source | EPA AQS (historical) · AirNow (live) |
Health Recommendation
Air quality is satisfactory, and air pollution poses little or no risk.
It's a great day to be active outside!
5-Day AQI Forecast
Last 90 Days
Current Pollutant Levels
Real-time data from EPA AirNow
Local Air Quality Context
Air quality data for Interlachen is sourced from the Palatka monitoring area, located approximately 15 miles from city center. This EPA-certified station continuously tracks particulate matter (PM10), the primary driver of air quality alerts in this area.
Interlachen has relatively consistent air quality throughout the year without a strong seasonal peak. Air quality is primarily influenced by local traffic, industrial activity, and regional weather patterns rather than a single seasonal driver.
AQI Trend (10 Years)
Air Quality Days by Year
Interlachen Median AQI by Year
Annual EPA air quality data for Interlachen — median AQI, day-category breakdown, and primary pollutant per year.
| Year | Median AQI | Good Days | Unhealthy Days | Max AQI | Primary Pollutant |
|---|---|---|---|---|---|
| 2025 | 21 | 262 | — | 69 | PM10 |
| 2024 | 25 | 329 | 2 | 112 | PM10 |
| 2023 | 17 | 355 | — | 54 | PM10 |
| 2022 | 16 | 321 | — | 58 | PM10 |
| 2021 | 16 | 340 | — | 46 | PM10 |
| 2020 | 14 | 365 | — | 67 | PM10 |
| 2019 | 17 | 346 | — | 54 | PM10 |
| 2018 | 14 | 301 | — | 51 | PM10 |
| 2017 | 15 | 342 | — | 53 | PM10 |
| 2016 | 14 | 361 | — | 45 | PM10 |
Source: EPA Air Quality System (AQS) annual summaries. "Unhealthy Days" includes Unhealthy for Sensitive Groups, Unhealthy, Very Unhealthy, and Hazardous categories.
2025 Air Quality Summary
Primary Pollutant Days (2025)
Days when each pollutant was the primary driver of AQI. Learn about pollutants →
Frequently Asked Questions About Interlachen Air Quality
What is the air quality in Interlachen today?
The current AQI in Interlachen is 44, rated "Good". Air quality is good — outdoor activity is safe for everyone today. Air quality is satisfactory, and air pollution poses little or no risk.
Is air quality in Interlachen getting better or worse?
Air quality in Interlachen has been worsening. The median AQI has risen 7 points (from 14 in 2016 to 21 in 2025), a concern for local health officials.
What is the most common air pollutant in Interlachen?
PM10 is the primary air pollutant in Interlachen, responsible for 273 days (100% of monitored days) in 2025. Particulate matter originates from vehicle exhaust, wildfires, construction, and industrial activity.
How many unhealthy air days does Interlachen have per year?
In 2025, Interlachen recorded 96% good air quality days (262 days) out of 273 monitored days. There were 0 Unhealthy for Sensitive Groups days and 0 Unhealthy days (AQI above 100). The highest single-day AQI recorded was 69.
What air quality grade does Interlachen receive?
Interlachen receives an air quality grade of A+, placing it better than 94% of US cities. This is based on a median AQI of 21 in 2025, with 262 good air quality days. The EPA monitors air quality in this area continuously using certified monitoring stations.
Air Quality Grade
Better than 94% of US cities
Nearby Cities
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National Rankings
See how Interlachen compares to every other US city by air quality.
Best Air Quality Cities →All city rankingsRecommended Air Purifiers for Interlachen
Interlachen's primary pollutant is PM10 (coarse dust and pollen). Units with a washable pre-filter stage plus True HEPA handle the larger particles that drive most of this area's air quality days.
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