Stay updated with real-time air quality in Winchester, 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)
33
Good
Winchester, Kentucky
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.96 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
17.35 μg/m³
0
55
155
255
425
605+
36.27 ppb
0
55
71
86
201
201+
0.77 ppb
0
36
76
186
605
1005+
7.84 ppb
0
54
101
361
1250
2050+
0.16 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Winchester, Kentucky
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AQI 32
Good
4.19μg/m³
PM2.5
17.28μg/m³
PM10
35.22ppb
O3
0.64ppb
SO2
6.97ppb
NO2
0.14ppm
CO
AQI 31
Good
4.03μg/m³
PM2.5
15.95μg/m³
PM10
33.43ppb
O3
0.79ppb
SO2
6.13ppb
NO2
0.14ppm
CO
AQI 33
Good
4.11μg/m³
PM2.5
18.05μg/m³
PM10
36.04ppb
O3
0.63ppb
SO2
6.15ppb
NO2
0.14ppm
CO
AQI 34
Good
4.20μg/m³
PM2.5
18.98μg/m³
PM10
36.97ppb
O3
0.63ppb
SO2
6.23ppb
NO2
0.14ppm
CO
AQI 31
Good
4.60μg/m³
PM2.5
18.02μg/m³
PM10
34.43ppb
O3
0.63ppb
SO2
6.13ppb
NO2
0.14ppm
CO
AQI 31
Good
4.25μg/m³
PM2.5
15.90μg/m³
PM10
34.01ppb
O3
0.80ppb
SO2
6.16ppb
NO2
0.14ppm
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 Winchester, Kentucky is updated on an hourly basis.
The worst air quality in Winchester, Kentucky was recorded at 09:00:00 on 2026-03-09.
The best air quality in Winchester, Kentucky was recorded at 01:00:00 on 2026-03-09.
The real-time air quality index in Winchester, Kentucky is 33, currently categorized as Good.
The most common pollutant in Winchester, Kentucky is O3.
If the air quality in Winchester, Kentucky is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Winchester, Kentucky at present are 3.964 μg/m3.
The current PM10 levels in Winchester, Kentucky are 17.351 μg/m3.
The current carbon monoxide (CO) level in Winchester, Kentucky is 0.16 ppm.
The current sulfur dioxide (SO2) levels in Winchester, Kentucky are 0.774 ppb.
The current ozone (O3) levels at Winchester, Kentucky is 36.27 ppm.
The current nitrogen dioxide (NO2) levels at Winchester, Kentucky is 7.844 ppb.
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