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)
44
Good
St. George, Utah
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
8.06 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
23.82 μg/m³
0
55
155
255
425
605+
10.33 ppb
0
55
71
86
201
201+
1.72 ppb
0
36
76
186
605
1005+
11.24 ppb
0
54
101
361
1250
2050+
0.81 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
St. George, Utah
St. George, Utah
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AQI 44
Good
7.74μg/m³
PM2.5
30.73μg/m³
PM10
12.52ppb
O3
1.73ppb
SO2
9.09ppb
NO2
0.81ppm
CO
AQI 38
Good
7.43μg/m³
PM2.5
32.79μg/m³
PM10
18.17ppb
O3
1.71ppb
SO2
11.52ppb
NO2
0.81ppm
CO
AQI 22
Good
4.01μg/m³
PM2.5
17.98μg/m³
PM10
19.10ppb
O3
1.76ppb
SO2
3.44ppb
NO2
0.80ppm
CO
AQI 22
Good
3.71μg/m³
PM2.5
20.01μg/m³
PM10
6.03ppb
O3
0.90ppb
SO2
9.78ppb
NO2
0.86ppm
CO
AQI 38
Good
6.79μg/m³
PM2.5
30.46μg/m³
PM10
4.71ppb
O3
1.82ppb
SO2
24.85ppb
NO2
0.76ppm
CO
AQI 71
Moderate
19.64μg/m³
PM2.5
55.64μg/m³
PM10
2.28ppb
O3
0.84ppb
SO2
29.42ppb
NO2
0.76ppm
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 03:00:00, 2026-01-23.
The best air quality in St. George, Utah was observed at 02:00:00 on 2026-01-22.
The air quality in St. George, Utah right now is Good, with an AQI of 44.
In St. George, Utah, PM2.5 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 8.062 μg/m3.
St. George, Utah currently has a PM10 concentration of 23.818 μg/m3.
The current carbon monoxide (CO) level in St. George, Utah is 0.812 ppm.
The current sulfur dioxide (SO2) concentration in St. George, Utah is 1.718 ppb.
St. George, Utah currently has an ozone (O3) concentration of 10.33 ppm.
The current level of nitrogen dioxide (NO2) in St. George, Utah is 11.245 ppb.
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