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)
27
Good
Smithfield, Utah
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.90 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
21.00 μg/m³
0
55
155
255
425
605+
15.00 ppb
0
55
71
86
201
201+
0.79 ppb
0
36
76
186
605
1005+
0.60 ppb
0
54
101
361
1250
2050+
0.10 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Smithfield, Utah
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AQI 27
Good
4.66μg/m³
PM2.5
20.15μg/m³
PM10
16.40ppb
O3
0.77ppb
SO2
0.73ppb
NO2
0.10ppm
CO
AQI 22
Good
4.28μg/m³
PM2.5
19.45μg/m³
PM10
18.98ppb
O3
0.76ppb
SO2
1.29ppb
NO2
0.10ppm
CO
AQI 19
Good
1.49μg/m³
PM2.5
6.48μg/m³
PM10
20.83ppb
O3
0.42ppb
SO2
1.42ppb
NO2
0.10ppm
CO
AQI 23
Good
1.81μg/m³
PM2.5
6.67μg/m³
PM10
24.66ppb
O3
0.71ppb
SO2
1.31ppb
NO2
0.10ppm
CO
AQI 23
Good
2.60μg/m³
PM2.5
11.01μg/m³
PM10
24.95ppb
O3
0.42ppb
SO2
1.32ppb
NO2
0.10ppm
CO
AQI 23
Good
1.32μg/m³
PM2.5
7.05μg/m³
PM10
25.02ppb
O3
0.43ppb
SO2
2.67ppb
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 12:00:00, 2026-09-06.
The best air quality in Smithfield, Utah was observed at 09:00:00 on 2026-09-07.
The air quality in Smithfield, Utah right now is Good, with an AQI of 27.
In Smithfield, Utah, PM2.5 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 4.9 μg/m3.
Smithfield, Utah currently has a PM10 concentration of 20.999 μg/m3.
The current carbon monoxide (CO) level in Smithfield, Utah is 0.1 ppm.
The current sulfur dioxide (SO2) concentration in Smithfield, Utah is 0.79 ppb.
Smithfield, Utah currently has an ozone (O3) concentration of 15.002 ppm.
The current level of nitrogen dioxide (NO2) in Smithfield, Utah is 0.6 ppb.
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