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)
33
Good
Smithfield, Utah
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.30 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
28.00 μg/m³
0
55
155
255
425
605+
24.00 ppb
0
55
71
86
201
201+
0.76 ppb
0
36
76
186
605
1005+
9.40 ppb
0
54
101
361
1250
2050+
0.40 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Smithfield, Utah
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AQI 33
Good
5.81μg/m³
PM2.5
25.74μg/m³
PM10
23.71ppb
O3
0.87ppb
SO2
10.16ppb
NO2
0.40ppm
CO
AQI 33
Good
5.60μg/m³
PM2.5
17.34μg/m³
PM10
24.39ppb
O3
0.78ppb
SO2
15.35ppb
NO2
0.40ppm
CO
AQI 38
Good
7.02μg/m³
PM2.5
27.55μg/m³
PM10
20.50ppb
O3
0.80ppb
SO2
25.38ppb
NO2
0.39ppm
CO
AQI 22
Good
4.02μg/m³
PM2.5
13.75μg/m³
PM10
13.58ppb
O3
0.79ppb
SO2
11.22ppb
NO2
0.40ppm
CO
AQI 22
Good
4.36μg/m³
PM2.5
18.88μg/m³
PM10
13.25ppb
O3
0.82ppb
SO2
19.37ppb
NO2
0.38ppm
CO
AQI 22
Good
1.77μg/m³
PM2.5
10.24μg/m³
PM10
23.77ppb
O3
0.85ppb
SO2
15.44ppb
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 04:00:00, 2025-12-09.
The best air quality in Smithfield, Utah was observed at 12:00:00 on 2025-12-09.
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 6.299 μg/m3.
Smithfield, Utah currently has a PM10 concentration of 27.996 μg/m3.
The current carbon monoxide (CO) level in Smithfield, Utah is 0.399 ppm.
The current sulfur dioxide (SO2) concentration in Smithfield, Utah is 0.762 ppb.
Smithfield, Utah currently has an ozone (O3) concentration of 24 ppm.
The current level of nitrogen dioxide (NO2) in Smithfield, Utah is 9.401 ppb.
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