Henderson, Kentucky Air Quality
Henderson has a median AQI of 53, earning an air quality grade of B — good air quality that ranks better than 9% of US cities. Air quality has remained relatively stable over the past decade. Particulate matter (PM2.5) is the primary concern, often linked to vehicle traffic, industrial activity, and wildfire smoke. In 2019, Henderson recorded 29 good air quality days (49% of monitored days).
Population: 27,852 • County: Henderson
Current AQI
Quick Facts
| Current AQI | 19 — Good |
| Air Quality Grade | B |
| Median AQI (2019) | 53 |
| vs. U.S. Cities | Better than 9% |
| Primary Pollutant | PM2.5 |
| 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 Henderson is sourced from the Evansville-Oak Hill monitoring area, located approximately 11 miles from city center. This EPA-certified station continuously tracks particulate matter (PM2.5), the primary driver of air quality alerts in this area.
Henderson 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
Henderson Median AQI by Year
Annual EPA air quality data for Henderson — median AQI, day-category breakdown, and primary pollutant per year.
| Year | Median AQI | Good Days | Unhealthy Days | Max AQI | Primary Pollutant |
|---|---|---|---|---|---|
| 2019 | 53 | 29 | — | 71 | PM2.5 |
| 2018 | 49 | 188 | 2 | 108 | PM2.5 |
| 2017 | 52 | 156 | 1 | 103 | PM2.5 |
| 2016 | 52 | 158 | 4 | 112 | PM2.5 |
Source: EPA Air Quality System (AQS) annual summaries. "Unhealthy Days" includes Unhealthy for Sensitive Groups, Unhealthy, Very Unhealthy, and Hazardous categories.
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 Henderson Air Quality
What is the air quality in Henderson today?
The current AQI in Henderson is 19, 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 Henderson getting better or worse?
Air quality in Henderson has been stable. The median AQI has risen 1 points (from 52 in 2016 to 53 in 2019).
What is the most common air pollutant in Henderson?
PM2.5 is the primary air pollutant in Henderson, responsible for 59 days (100% of monitored days) in 2019. Particulate matter originates from vehicle exhaust, wildfires, construction, and industrial activity.
How many unhealthy air days does Henderson have per year?
In 2019, Henderson recorded 49% good air quality days (29 days) out of 59 monitored days. There were 0 Unhealthy for Sensitive Groups days and 0 Unhealthy days (AQI above 100). The highest single-day AQI recorded was 71.
What air quality grade does Henderson receive?
Henderson receives an air quality grade of B, placing it better than 9% of US cities. This is based on a median AQI of 53 in 2019, with 29 good air quality days. The EPA monitors air quality in this area continuously using certified monitoring stations.
Air Quality Grade
Better than 9% of US cities
Nearby Cities
Protect Your Health
With a median AQI of 53, indoor air purification is recommended
See Recommended Purifiers ↓Get AQI Alerts
Receive notifications when air quality changes in Henderson
National Rankings
See how Henderson compares to every other US city by air quality.
Best Air Quality Cities →All city rankingsRecommended Air Purifiers for Henderson
PM2.5 is Henderson's primary pollutant at moderate levels. True HEPA filtration is the most effective defense against fine particles from vehicle exhaust, construction, and regional sources.
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Other Great Options
Blueair Blue Pure 211+
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