Runge, Texas Air Quality
Runge has a median AQI of 4, earning an air quality grade of A+ — excellent air quality that ranks better than 100% of US cities. Air quality has remained relatively stable over the past decade. NO₂ is the primary pollutant driving air quality conditions. In 2025, Runge recorded 234 good air quality days (100% of monitored days).
Population: 1,108 • County: Karnes
Current AQI
Quick Facts
| Current AQI | 25 — Good |
| Air Quality Grade | A+ |
| Median AQI (2025) | 4 |
| vs. U.S. Cities | Better than 100% |
| Primary Pollutant | NO₂ |
| Unhealthy Days/Year | 0 |
| 10-Year Trend | → Stable |
| 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 Runge is sourced from the San Antonio Bulverde Parkway C1087 monitoring area, located approximately 67 miles from city center. This EPA-certified station continuously tracks NO₂, the primary pollutant tracked in this area.
Runge 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
Runge Median AQI by Year
Annual EPA air quality data for Runge — median AQI, day-category breakdown, and primary pollutant per year.
| Year | Median AQI | Good Days | Unhealthy Days | Max AQI | Primary Pollutant |
|---|---|---|---|---|---|
| 2025 | 4 | 234 | — | 32 | NO₂ |
| 2024 | 7 | 363 | — | 33 | NO₂ |
| 2023 | 7 | 357 | — | 29 | NO₂ |
| 2022 | 6 | 349 | — | 34 | NO₂ |
| 2021 | 6 | 364 | — | 26 | NO₂ |
| 2020 | 6 | 363 | — | 32 | NO₂ |
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 Runge Air Quality
What is the air quality in Runge today?
The current AQI in Runge is 25, 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 Runge getting better or worse?
Air quality in Runge has been stable. The median AQI has dropped 2 points (from 6 in 2020 to 4 in 2025).
What is the most common air pollutant in Runge?
NO₂ is the primary air pollutant in Runge, responsible for 234 days (100% of monitored days) in 2025. NO₂ is regulated by the EPA and monitored continuously across the area.
How many unhealthy air days does Runge have per year?
In 2025, Runge recorded 100% good air quality days (234 days) out of 234 monitored days. There were 0 Unhealthy for Sensitive Groups days and 0 Unhealthy days (AQI above 100). The highest single-day AQI recorded was 32.
What air quality grade does Runge receive?
Runge receives an air quality grade of A+, placing it better than 100% of US cities. This is based on a median AQI of 4 in 2025, with 234 good air quality days. The EPA monitors air quality in this area continuously using certified monitoring stations.
Air Quality Grade
Better than 100% of US cities
Nearby Cities
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National Rankings
See how Runge compares to every other US city by air quality.
Best Air Quality Cities →All city rankingsRecommended Air Purifiers for Runge
Nitrogen dioxide drives Runge's air quality days, usually from vehicle traffic and industrial combustion. Look for units with substantial activated carbon layers alongside HEPA filtration.
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