Stay updated with real-time air quality in St. George, Utah 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
St. George, Utah
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
3.94 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
21.60 μg/m³
0
55
155
255
425
605+
46.26 ppb
0
55
71
86
201
201+
0.41 ppb
0
36
76
186
605
1005+
1.91 ppb
0
54
101
361
1250
2050+
0.17 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
St. George, Utah
St. George, Utah
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AQI 43
Good
3.84μg/m³
PM2.5
25.32μg/m³
PM10
45.92ppb
O3
0.41ppb
SO2
1.82ppb
NO2
0.17ppm
CO
AQI 44
Good
4.04μg/m³
PM2.5
22.03μg/m³
PM10
47.04ppb
O3
0.45ppb
SO2
1.99ppb
NO2
0.17ppm
CO
AQI 46
Good
3.31μg/m³
PM2.5
15.21μg/m³
PM10
50.03ppb
O3
0.47ppb
SO2
1.51ppb
NO2
0.17ppm
CO
AQI 42
Good
3.40μg/m³
PM2.5
10.02μg/m³
PM10
45.01ppb
O3
0.53ppb
SO2
2.11ppb
NO2
0.18ppm
CO
AQI 43
Good
6.48μg/m³
PM2.5
29.59μg/m³
PM10
46.18ppb
O3
0.47ppb
SO2
3.04ppb
NO2
0.16ppm
CO
AQI 44
Good
4.36μg/m³
PM2.5
21.24μg/m³
PM10
47.88ppb
O3
0.42ppb
SO2
2.79ppb
NO2
0.19ppm
CO
The air quality data for Utah, 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. George, Utah are available every hour.
St. George, Utah experienced its worst air quality at 12:00:00, 2025-06-06.
The best air quality in St. George, Utah was observed at 02:00:00 on 2025-06-05.
The air quality in St. George, Utah right now is Good, with an AQI of 43.
In St. George, Utah, O3 is the most frequently found pollutant.
When air quality in St. George, Utah is compromised, staying indoors and wearing a mask can reduce health risks.
St. George, Utah currently has a PM2.5 concentration of 3.936 μg/m3.
St. George, Utah currently has a PM10 concentration of 21.604 μg/m3.
The current carbon monoxide (CO) level in St. George, Utah is 0.167 ppm.
The current sulfur dioxide (SO2) concentration in St. George, Utah is 0.411 ppb.
St. George, Utah currently has an ozone (O3) concentration of 46.258 ppm.
The current level of nitrogen dioxide (NO2) in St. George, Utah is 1.913 ppb.
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