Audubon, Pennsylvania Air Quality
Audubon has a median AQI of 41, earning an air quality grade of A- — excellent air quality that ranks better than 50% of US cities. Air quality has been trending worse over the past decade, a concern for local residents and health officials. Ground-level ozone is the primary concern, typically peaking on warm sunny days due to vehicle and industrial emissions. In 2025, Audubon recorded 152 good air quality days (72% of monitored days) and 1 unhealthy days.
Population: 9,229 • County: Montgomery
Loading AQI…
Quick Facts
| Current AQI | 21 — Good |
| Air Quality Grade | A- |
| Median AQI (2025) | 41 |
| vs. U.S. Cities | Better than 50% |
| Primary Pollutant | Ozone |
| Unhealthy Days/Year | 1 |
| 10-Year Trend | ↓ Worsening |
| Data Source | EPA AirNow |
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 30 Days
Current Pollutant Levels
Real-time data from EPA AirNow
AQI Trend (10 Years)
Air Quality Days by Year
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 Audubon Air Quality
What is the air quality in Audubon today?
The current AQI in Audubon is 21, which is rated "Good". Air quality is satisfactory, and air pollution poses little or no risk.
Is air quality in Audubon getting better or worse?
Air quality in Audubon has been worsening in recent years. The median AQI rose from 34 in 2016 to 41 in 2025.
What is the most common air pollutant in Audubon?
Ozone is the primary air pollutant in Audubon, responsible for the most air quality-impacted days in 2025. Ground-level ozone forms when sunlight reacts with vehicle and industrial emissions on warm days.
How many unhealthy air days does Audubon have per year?
In 2025, Audubon had 1 days when air quality was unhealthy or unhealthy for sensitive groups (AQI above 100). There were 152 good days and 59 moderate days out of 212 days monitored.
What air quality grade does Audubon receive?
Audubon receives an air quality grade of A-, placing it better than 50% of US cities. This grade is based on a median AQI of 41 for 2025, derived from EPA monitoring data.
Air Quality Grade
Better than 50% of US cities
Nearby Cities
Get AQI Alerts
Receive notifications when air quality changes in Audubon
National Rankings
See how Audubon compares to every other US city by air quality.
Best Air Quality Cities →All city rankingsRecommended Air Purifiers for Audubon
Based on your area's air quality (median AQI: 41), we recommend these air purifiers to help protect your health indoors.
RabbitAir MinusA2
Stylish wall-mountable design with customizable artwork panels.
- ✓Adequate for room size
- ✓Recommended for your air quality
We may earn a commission from purchases
Other Great Options
Molekule Air Pro
Commercial-grade with patented PECO technology for destroying pollutants.
Blueair Blue Pure 211+
High performance for large rooms with simple operation.
Dyson Pure Cool TP04
Premium all-in-one air purifier and fan with advanced features.
Not sure which air purifier is right for you?
Learn more about different types of air purifiers and how to choose the best one for your needs.
Read our complete buying guide →