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)
49
Good
Smithfield, Utah
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
8.70 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
37.99 μg/m³
0
55
155
255
425
605+
17.00 ppb
0
55
71
86
201
201+
0.70 ppb
0
36
76
186
605
1005+
1.30 ppb
0
54
101
361
1250
2050+
0.15 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Smithfield, Utah
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AQI 44
Good
8.06μg/m³
PM2.5
35.24μg/m³
PM10
17.27ppb
O3
0.69ppb
SO2
2.04ppb
NO2
0.15ppm
CO
AQI 33
Good
5.91μg/m³
PM2.5
24.36μg/m³
PM10
20.55ppb
O3
0.68ppb
SO2
3.59ppb
NO2
0.15ppm
CO
AQI 27
Good
5.33μg/m³
PM2.5
16.50μg/m³
PM10
19.21ppb
O3
0.49ppb
SO2
5.99ppb
NO2
0.15ppm
CO
AQI 22
Good
3.89μg/m³
PM2.5
10.99μg/m³
PM10
19.99ppb
O3
0.66ppb
SO2
6.68ppb
NO2
0.15ppm
CO
AQI 33
Good
5.78μg/m³
PM2.5
25.08μg/m³
PM10
15.09ppb
O3
0.49ppb
SO2
7.68ppb
NO2
0.16ppm
CO
AQI 29
Good
4.41μg/m³
PM2.5
30.83μg/m³
PM10
18.97ppb
O3
0.49ppb
SO2
8.68ppb
NO2
0.20ppm
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, 2026-10-22.
The best air quality in Smithfield, Utah was observed at 08:00:00 on 2026-10-22.
The air quality in Smithfield, Utah right now is Good, with an AQI of 49.
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 8.699 μg/m3.
Smithfield, Utah currently has a PM10 concentration of 37.995 μg/m3.
The current carbon monoxide (CO) level in Smithfield, Utah is 0.15 ppm.
The current sulfur dioxide (SO2) concentration in Smithfield, Utah is 0.7 ppb.
Smithfield, Utah currently has an ozone (O3) concentration of 17.001 ppm.
The current level of nitrogen dioxide (NO2) in Smithfield, Utah is 1.301 ppb.
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