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)
44
Good
St. Matthews, Kentucky
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
8.14 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
20.91 μg/m³
0
55
155
255
425
605+
44.74 ppb
0
55
71
86
201
201+
1.88 ppb
0
36
76
186
605
1005+
4.05 ppb
0
54
101
361
1250
2050+
0.19 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 38
Good
7.23μg/m³
PM2.5
17.01μg/m³
PM10
9.14ppb
O3
1.60ppb
SO2
15.54ppb
NO2
0.29ppm
CO
AQI 33
Good
6.48μg/m³
PM2.5
13.99μg/m³
PM10
8.19ppb
O3
1.22ppb
SO2
15.77ppb
NO2
0.34ppm
CO
AQI 44
Good
7.61μg/m³
PM2.5
33.58μg/m³
PM10
9.30ppb
O3
0.97ppb
SO2
15.57ppb
NO2
0.34ppm
CO
AQI 44
Good
8.44μg/m³
PM2.5
27.89μg/m³
PM10
6.92ppb
O3
0.84ppb
SO2
15.87ppb
NO2
0.37ppm
CO
AQI 44
Good
7.61μg/m³
PM2.5
33.08μg/m³
PM10
9.08ppb
O3
0.96ppb
SO2
15.58ppb
NO2
0.34ppm
CO
AQI 52
Moderate
10.07μg/m³
PM2.5
26.18μg/m³
PM10
4.76ppb
O3
0.55ppb
SO2
16.03ppb
NO2
0.39ppm
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 06:00:00, 2025-09-02.
The best air quality in St. Matthews, Kentucky was observed at 03:00:00 on 2025-09-03.
The air quality in St. Matthews, Kentucky right now is Good, with an AQI of 44.
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 7.764 μg/m3.
St. Matthews, Kentucky currently has a PM10 concentration of 15.948 μg/m3.
The current carbon monoxide (CO) level in St. Matthews, Kentucky is 0.231 ppm.
The current sulfur dioxide (SO2) concentration in St. Matthews, Kentucky is 2.487 ppb.
St. Matthews, Kentucky currently has an ozone (O3) concentration of 13.541 ppm.
The current level of nitrogen dioxide (NO2) in St. Matthews, Kentucky is 10.996 ppb.
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