Stay updated with real-time air quality in Shepherdsville, 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)
43
Good
Shepherdsville, Kentucky
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.67 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
9.61 μg/m³
0
55
155
255
425
605+
46.00 ppb
0
55
71
86
201
201+
0.32 ppb
0
36
76
186
605
1005+
4.66 ppb
0
54
101
361
1250
2050+
0.11 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Shepherdsville, Kentucky
Shepherdsville, Kentucky
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AQI 42
Good
3.60μg/m³
PM2.5
16.01μg/m³
PM10
45.42ppb
O3
0.32ppb
SO2
4.49ppb
NO2
0.11ppm
CO
AQI 46
Good
3.95μg/m³
PM2.5
13.14μg/m³
PM10
49.74ppb
O3
0.30ppb
SO2
4.36ppb
NO2
0.11ppm
CO
AQI 43
Good
3.42μg/m³
PM2.5
7.38μg/m³
PM10
45.61ppb
O3
0.28ppb
SO2
3.93ppb
NO2
0.11ppm
CO
AQI 44
Good
3.79μg/m³
PM2.5
22.37μg/m³
PM10
48.38ppb
O3
0.37ppb
SO2
5.04ppb
NO2
0.12ppm
CO
AQI 45
Good
3.79μg/m³
PM2.5
13.86μg/m³
PM10
49.18ppb
O3
0.30ppb
SO2
4.11ppb
NO2
0.10ppm
CO
AQI 47
Good
3.44μg/m³
PM2.5
8.47μg/m³
PM10
50.55ppb
O3
0.13ppb
SO2
2.28ppb
NO2
0.10ppm
CO
Air quality measurements for Kentucky, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for Shepherdsville, Kentucky is updated on an hourly basis.
The worst air quality in Shepherdsville, Kentucky was recorded at 08:00:00 on 2026-07-23.
The best air quality in Shepherdsville, Kentucky was recorded at 03:00:00 on 2026-07-23.
The real-time air quality index in Shepherdsville, Kentucky is 43, currently categorized as Good.
The most common pollutant in Shepherdsville, Kentucky is O3.
If the air quality in Shepherdsville, Kentucky is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Shepherdsville, Kentucky at present are 3.675 μg/m3.
The current PM10 levels in Shepherdsville, Kentucky are 9.609 μg/m3.
The current carbon monoxide (CO) level in Shepherdsville, Kentucky is 0.111 ppm.
The current sulfur dioxide (SO2) levels in Shepherdsville, Kentucky are 0.321 ppb.
The current ozone (O3) levels at Shepherdsville, Kentucky is 46.004 ppm.
The current nitrogen dioxide (NO2) levels at Shepherdsville, Kentucky is 4.663 ppb.
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