Stay updated with real-time air quality in Henderson, Kentucky featuring accurate data on AQI, PM2.5, PM10, O3, NO2, SO2, and CO levels. Use our interactive map and detailed forecasts to monitor pollution trends, manage health risks, and plan your daily activities with confidence.
Live AQI (Air Quality Index)
39
Good
Henderson, Kentucky
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.72 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
18.15 μg/m³
0
55
155
255
425
605+
42.42 ppb
0
55
71
86
201
201+
1.30 ppb
0
36
76
186
605
1005+
3.99 ppb
0
54
101
361
1250
2050+
0.27 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Henderson, Kentucky
Henderson, Kentucky
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AQI 40
Good
3.74μg/m³
PM2.5
14.73μg/m³
PM10
43.24ppb
O3
0.90ppb
SO2
3.88ppb
NO2
0.29ppm
CO
AQI 39
Good
4.98μg/m³
PM2.5
42.29μg/m³
PM10
39.14ppb
O3
1.14ppb
SO2
5.86ppb
NO2
0.20ppm
CO
AQI 41
Good
5.13μg/m³
PM2.5
42.39μg/m³
PM10
43.97ppb
O3
1.44ppb
SO2
3.98ppb
NO2
0.22ppm
CO
AQI 37
Good
3.60μg/m³
PM2.5
10.27μg/m³
PM10
39.81ppb
O3
0.85ppb
SO2
5.79ppb
NO2
0.18ppm
CO
AQI 39
Good
5.17μg/m³
PM2.5
14.53μg/m³
PM10
41.98ppb
O3
0.93ppb
SO2
3.97ppb
NO2
0.21ppm
CO
AQI 38
Good
4.73μg/m³
PM2.5
13.30μg/m³
PM10
40.79ppb
O3
0.88ppb
SO2
5.92ppb
NO2
0.19ppm
CO
Air quality and pollutant data for Kentucky, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.
Source: Ambee Data Sources
The air quality information for Henderson, Kentucky is updated every hour for accuracy.
In the past 24 hours, the air quality in Henderson, Kentucky was at its worst at 10:00:00 on 2026-07-22.
In the last 24 hours, the best air quality in Henderson, Kentucky was observed at 03:00:00 on 2026-07-23.
As of now, the AQI in Henderson, Kentucky is 39, indicating Good conditions.
Henderson, Kentucky air has the highest levels of O3.
Poor air quality in Henderson, Kentucky means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Henderson, Kentucky are currently 3.718 μg/m3.
The PM10 concentration in Henderson, Kentucky is 18.153 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Henderson, Kentucky is 0.268 ppm.
Currently, Henderson, Kentucky has a sulfur dioxide (SO2) concentration of 1.298 ppb.
The current ozone (O3) level in Henderson, Kentucky at the moment is 42.425 ppm.
Nitrogen dioxide (NO2) level in Henderson, Kentucky at the moment is 3.993 ppb.
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