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)
29
Good
St. Matthews, Kentucky
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
5.16 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
11.82 μg/m³
0
55
155
255
425
605+
30.58 ppb
0
55
71
86
201
201+
1.13 ppb
0
36
76
186
605
1005+
2.66 ppb
0
54
101
361
1250
2050+
0.11 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
St. Matthews, Kentucky
St. Matthews, Kentucky
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AQI 52
Moderate
9.56μg/m³
PM2.5
22.89μg/m³
PM10
40.83ppb
O3
1.05ppb
SO2
4.54ppb
NO2
0.11ppm
CO
AQI 52
Moderate
9.84μg/m³
PM2.5
20.66μg/m³
PM10
38.44ppb
O3
0.98ppb
SO2
4.99ppb
NO2
0.12ppm
CO
AQI 52
Moderate
9.60μg/m³
PM2.5
42.53μg/m³
PM10
37.82ppb
O3
0.88ppb
SO2
4.82ppb
NO2
0.12ppm
CO
AQI 52
Moderate
9.82μg/m³
PM2.5
36.87μg/m³
PM10
37.59ppb
O3
0.63ppb
SO2
4.84ppb
NO2
0.12ppm
CO
AQI 52
Moderate
9.58μg/m³
PM2.5
42.08μg/m³
PM10
37.75ppb
O3
0.86ppb
SO2
4.82ppb
NO2
0.12ppm
CO
AQI 54
Moderate
10.53μg/m³
PM2.5
37.01μg/m³
PM10
36.56ppb
O3
0.35ppb
SO2
4.90ppb
NO2
0.12ppm
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 07:00:00, 2025-07-17.
The best air quality in St. Matthews, Kentucky was observed at 11:00:00 on 2025-07-17.
The air quality in St. Matthews, Kentucky right now is Good, with an AQI of 49.
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 9.429 μg/m3.
St. Matthews, Kentucky currently has a PM10 concentration of 22.066 μg/m3.
The current carbon monoxide (CO) level in St. Matthews, Kentucky is 0.102 ppm.
The current sulfur dioxide (SO2) concentration in St. Matthews, Kentucky is 1.153 ppb.
St. Matthews, Kentucky currently has an ozone (O3) concentration of 43.184 ppm.
The current level of nitrogen dioxide (NO2) in St. Matthews, Kentucky is 4.083 ppb.
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