Stay updated with real-time air quality in Grantsville, 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)
21
Good
Grantsville, Utah
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
1.68 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
5.62 μg/m³
0
55
155
255
425
605+
22.90 ppb
0
55
71
86
201
201+
0.48 ppb
0
36
76
186
605
1005+
2.16 ppb
0
54
101
361
1250
2050+
0.14 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Grantsville, Utah
Grantsville, Utah
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AQI 25
Good
1.42μg/m³
PM2.5
6.09μg/m³
PM10
26.88ppb
O3
0.47ppb
SO2
2.34ppb
NO2
0.14ppm
CO
AQI 26
Good
1.21μg/m³
PM2.5
4.99μg/m³
PM10
27.82ppb
O3
0.47ppb
SO2
1.76ppb
NO2
0.14ppm
CO
AQI 25
Good
2.00μg/m³
PM2.5
8.00μg/m³
PM10
27.00ppb
O3
0.40ppb
SO2
1.50ppb
NO2
0.14ppm
CO
AQI 26
Good
1.77μg/m³
PM2.5
4.44μg/m³
PM10
27.68ppb
O3
0.46ppb
SO2
1.57ppb
NO2
0.13ppm
CO
AQI 22
Good
3.89μg/m³
PM2.5
16.57μg/m³
PM10
20.14ppb
O3
0.51ppb
SO2
5.40ppb
NO2
0.14ppm
CO
AQI 20
Good
3.14μg/m³
PM2.5
13.04μg/m³
PM10
21.71ppb
O3
0.55ppb
SO2
3.52ppb
NO2
0.14ppm
CO
Air quality data and pollutant measurements for Utah, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for Grantsville, Utah is updated every hour.
The worst air quality in Grantsville, Utah in the last 24 hours was observed at 08:00:00 on 2026-10-21.
In the last 24 hrs, the best air quality in Grantsville, Utah was observed at 10:00:00 on 2026-10-22.
The current air quality in Grantsville, Utah is 21, categorized as Good based on real-time data.
The most common pollutant in Grantsville, Utah is O3.
If the air quality in Grantsville, Utah is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Grantsville, Utah is 1.68 μg/m3.
The current PM10 concentration at Grantsville, Utah is 5.62 μg/m3.
The current carbon monoxide (CO) concentration at Grantsville, Utah is 0.137 ppm.
The current sulfur dioxide (SO2) concentration at Grantsville, Utah is 0.477 ppb.
The current ozone (O3) concentration at Grantsville, Utah is 22.898 ppm.
The current nitrogen dioxide (NO2) concentration at Grantsville, Utah is 2.163 ppb.
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