Stay updated with real-time air quality in St. Matthews, 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)
58
Moderate
St. Matthews, Kentucky
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
12.98 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
30.77 μg/m³
0
55
155
255
425
605+
55.04 ppb
0
55
71
86
201
201+
1.32 ppb
0
36
76
186
605
1005+
10.90 ppb
0
54
101
361
1250
2050+
0.22 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
St. Matthews, Kentucky
St. Matthews, Kentucky
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AQI 58
Moderate
13.34μg/m³
PM2.5
32.75μg/m³
PM10
55.10ppb
O3
1.12ppb
SO2
15.54ppb
NO2
0.26ppm
CO
AQI 60
Moderate
13.96μg/m³
PM2.5
29.11μg/m³
PM10
55.03ppb
O3
0.95ppb
SO2
19.73ppb
NO2
0.28ppm
CO
AQI 60
Moderate
13.50μg/m³
PM2.5
60.22μg/m³
PM10
53.69ppb
O3
0.85ppb
SO2
15.67ppb
NO2
0.29ppm
CO
AQI 60
Moderate
14.09μg/m³
PM2.5
47.42μg/m³
PM10
53.15ppb
O3
0.71ppb
SO2
19.45ppb
NO2
0.30ppm
CO
AQI 60
Moderate
13.52μg/m³
PM2.5
59.50μg/m³
PM10
53.66ppb
O3
0.84ppb
SO2
15.86ppb
NO2
0.29ppm
CO
AQI 62
Moderate
15.30μg/m³
PM2.5
39.77μg/m³
PM10
51.74ppb
O3
0.50ppb
SO2
21.49ppb
NO2
0.32ppm
CO
The air quality data for Kentucky, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for St. Matthews, Kentucky are available every hour.
St. Matthews, Kentucky experienced its worst air quality at 09:00:00, 2026-04-23.
The best air quality in St. Matthews, Kentucky was observed at 03:00:00 on 2026-04-23.
The air quality in St. Matthews, Kentucky right now is Moderate, with an AQI of 58.
In St. Matthews, Kentucky, PM2.5 is the most frequently found pollutant.
When air quality in St. Matthews, Kentucky is compromised, staying indoors and wearing a mask can reduce health risks.
St. Matthews, Kentucky currently has a PM2.5 concentration of 12.981 μg/m3.
St. Matthews, Kentucky currently has a PM10 concentration of 30.765 μg/m3.
The current carbon monoxide (CO) level in St. Matthews, Kentucky is 0.22 ppm.
The current sulfur dioxide (SO2) concentration in St. Matthews, Kentucky is 1.317 ppb.
St. Matthews, Kentucky currently has an ozone (O3) concentration of 55.044 ppm.
The current level of nitrogen dioxide (NO2) in St. Matthews, Kentucky is 10.896 ppb.
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