DeSales University, Pennsylvania Air Quality
DeSales University has a median AQI of 42, earning an air quality grade of A- — excellent air quality that ranks better than 44% of US cities. Air quality has been improving steadily over the past decade, a positive sign for residents. Ground-level ozone is the primary concern, typically peaking on warm sunny days due to vehicle and industrial emissions. In 2025, DeSales University recorded 146 good air quality days (70% of monitored days) and 1 unhealthy days.
Population: 1,052 • County: Lehigh
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Quick Facts
| Current AQI | 21 — Good |
| Air Quality Grade | A- |
| Median AQI (2025) | 42 |
| vs. U.S. Cities | Better than 44% |
| Primary Pollutant | Ozone |
| Unhealthy Days/Year | 1 |
| 10-Year Trend | ↑ Improving |
| 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 DeSales University Air Quality
What is the air quality in DeSales University today?
The current AQI in DeSales University is 21, which is rated "Good". Air quality is satisfactory, and air pollution poses little or no risk.
Is air quality in DeSales University getting better or worse?
Air quality in DeSales University has been improving over the past decade. The median AQI dropped from 52 in 2016 to 42 in 2025.
What is the most common air pollutant in DeSales University?
Ozone is the primary air pollutant in DeSales University, 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 DeSales University have per year?
In 2025, DeSales University had 1 days when air quality was unhealthy or unhealthy for sensitive groups (AQI above 100). There were 146 good days and 61 moderate days out of 208 days monitored.
What air quality grade does DeSales University receive?
DeSales University receives an air quality grade of A-, placing it better than 44% of US cities. This grade is based on a median AQI of 42 for 2025, derived from EPA monitoring data.
Air Quality Grade
Better than 44% of US cities
Nearby Cities
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National Rankings
See how DeSales University compares to every other US city by air quality.
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