Markle, Indiana Air Quality
Markle has a median AQI of 31, earning an air quality grade of A — excellent air quality that ranks better than 88% 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 2019, Markle recorded 345 good air quality days (97% of monitored days).
Population: 1,203 • County: Huntington
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Quick Facts
| Current AQI | 14 — Good |
| Air Quality Grade | A |
| Median AQI (2019) | 31 |
| vs. U.S. Cities | Better than 88% |
| Primary Pollutant | Ozone |
| Unhealthy Days/Year | 0 |
| 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
2019 Air Quality Summary
Primary Pollutant Days (2019)
Days when each pollutant was the primary driver of AQI. Learn about pollutants →
Frequently Asked Questions About Markle Air Quality
What is the air quality in Markle today?
The current AQI in Markle is 14, which is rated "Good". Air quality is satisfactory, and air pollution poses little or no risk.
Is air quality in Markle getting better or worse?
Air quality in Markle has been improving over the past decade. The median AQI dropped from 37 in 2016 to 31 in 2019.
What is the most common air pollutant in Markle?
Ozone is the primary air pollutant in Markle, responsible for the most air quality-impacted days in 2019. Ground-level ozone forms when sunlight reacts with vehicle and industrial emissions on warm days.
How many unhealthy air days does Markle have per year?
In 2019, Markle had 0 days when air quality was unhealthy or unhealthy for sensitive groups (AQI above 100). There were 345 good days and 10 moderate days out of 355 days monitored.
What air quality grade does Markle receive?
Markle receives an air quality grade of A, placing it better than 88% of US cities. This grade is based on a median AQI of 31 for 2019, derived from EPA monitoring data.
Air Quality Grade
Better than 88% of US cities
Nearby Cities
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National Rankings
See how Markle compares to every other US city by air quality.
Best Air Quality Cities →All city rankingsRecommended Air Purifiers for Markle
Based on your area's air quality (median AQI: 31), we recommend these air purifiers to help protect your health indoors.
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