Stay updated with real-time air quality in Smithfield, 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)
36
Good
Smithfield, Utah
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
0.40 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
2.00 μg/m³
0
55
155
255
425
605+
39.00 ppb
0
55
71
86
201
201+
3.20 ppb
0
36
76
186
605
1005+
1.30 ppb
0
54
101
361
1250
2050+
0.17 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Smithfield, Utah
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AQI 36
Good
0.44μg/m³
PM2.5
2.22μg/m³
PM10
38.66ppb
O3
3.20ppb
SO2
1.38ppb
NO2
0.17ppm
CO
AQI 36
Good
0.46μg/m³
PM2.5
2.40μg/m³
PM10
39.32ppb
O3
3.02ppb
SO2
1.50ppb
NO2
0.17ppm
CO
AQI 33
Good
0.48μg/m³
PM2.5
3.17μg/m³
PM10
36.05ppb
O3
2.77ppb
SO2
1.78ppb
NO2
0.16ppm
CO
AQI 35
Good
0.47μg/m³
PM2.5
3.16μg/m³
PM10
37.58ppb
O3
3.25ppb
SO2
1.64ppb
NO2
0.17ppm
CO
AQI 31
Good
0.30μg/m³
PM2.5
1.05μg/m³
PM10
34.08ppb
O3
2.62ppb
SO2
2.39ppb
NO2
0.15ppm
CO
AQI 34
Good
0.50μg/m³
PM2.5
2.98μg/m³
PM10
36.95ppb
O3
2.11ppb
SO2
2.01ppb
NO2
0.10ppm
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 Smithfield, Utah are available every hour.
Smithfield, Utah experienced its worst air quality at 01:00:00, 2026-03-05.
The best air quality in Smithfield, Utah was observed at 06:00:00 on 2026-03-04.
The air quality in Smithfield, Utah right now is Good, with an AQI of 36.
In Smithfield, Utah, O3 is the most frequently found pollutant.
When air quality in Smithfield, Utah is compromised, staying indoors and wearing a mask can reduce health risks.
Smithfield, Utah currently has a PM2.5 concentration of 0.4 μg/m3.
Smithfield, Utah currently has a PM10 concentration of 2 μg/m3.
The current carbon monoxide (CO) level in Smithfield, Utah is 0.167 ppm.
The current sulfur dioxide (SO2) concentration in Smithfield, Utah is 3.2 ppb.
Smithfield, Utah currently has an ozone (O3) concentration of 39 ppm.
The current level of nitrogen dioxide (NO2) in Smithfield, Utah is 1.3 ppb.
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