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)
23
Good
Smithfield, Utah
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.16 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
17.99 μg/m³
0
55
155
255
425
605+
24.55 ppb
0
55
71
86
201
201+
0.34 ppb
0
36
76
186
605
1005+
8.57 ppb
0
54
101
361
1250
2050+
0.21 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Smithfield, Utah
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AQI 38
Good
6.97μg/m³
PM2.5
30.01μg/m³
PM10
23.55ppb
O3
0.78ppb
SO2
2.43ppb
NO2
0.22ppm
CO
AQI 38
Good
6.59μg/m³
PM2.5
28.70μg/m³
PM10
25.61ppb
O3
0.77ppb
SO2
3.35ppb
NO2
0.22ppm
CO
AQI 44
Good
8.00μg/m³
PM2.5
33.55μg/m³
PM10
25.17ppb
O3
0.76ppb
SO2
4.85ppb
NO2
0.22ppm
CO
AQI 44
Good
8.10μg/m³
PM2.5
37.57μg/m³
PM10
25.86ppb
O3
0.79ppb
SO2
4.55ppb
NO2
0.22ppm
CO
AQI 44
Good
7.56μg/m³
PM2.5
32.73μg/m³
PM10
25.89ppb
O3
0.76ppb
SO2
5.89ppb
NO2
0.23ppm
CO
AQI 56
Moderate
12.41μg/m³
PM2.5
17.33μg/m³
PM10
18.15ppb
O3
0.73ppb
SO2
13.97ppb
NO2
0.30ppm
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 05:00:00, 2025-10-24.
The best air quality in Smithfield, Utah was observed at 02:00:00 on 2025-10-24.
The air quality in Smithfield, Utah right now is Good, with an AQI of 33.
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 6.3 μg/m3.
Smithfield, Utah currently has a PM10 concentration of 27.999 μg/m3.
The current carbon monoxide (CO) level in Smithfield, Utah is 0.199 ppm.
The current sulfur dioxide (SO2) concentration in Smithfield, Utah is 0.617 ppb.
Smithfield, Utah currently has an ozone (O3) concentration of 28.001 ppm.
The current level of nitrogen dioxide (NO2) in Smithfield, Utah is 1.801 ppb.
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