Air quality in Saint George
The US Air Quality Index (EPA) grades air from 0 to 500 using fine particles (PM2.5/PM10), ozone and nitrogen dioxide. 0-50 is Good, 51-100 Moderate, 101-150 Unhealthy for Sensitive Groups, and anything higher affects everyone.
PM2.5
2.4 µg/m³
WHO guideline 15
PM10
3.7 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
11:00 PM
💨
PM2.5 2.4 µg/m³
33Good
12:00 AM
💨
PM2.5 3.6 µg/m³
34Good
1:00 AM
💨
PM2.5 4.6 µg/m³
37Good
2:00 AM
💨
PM2.5 5.4 µg/m³
38Good
3:00 AM
💨
PM2.5 5.5 µg/m³
39Good
4:00 AM
💨
PM2.5 6.2 µg/m³
39Good
5:00 AM
💨
PM2.5 6.9 µg/m³
40Good
6:00 AM
💨
PM2.5 7.8 µg/m³
40Good
7:00 AM
💨
PM2.5 8.5 µg/m³
40Good
8:00 AM
💨
PM2.5 9.1 µg/m³
40Good
9:00 AM
💨
PM2.5 8.7 µg/m³
42Good
10:00 AM
💨
PM2.5 8.6 µg/m³
44Good
Next few days
daily max · US EPA AQI
Sun
💨
Good · UV Moderate
36
Mon
💨
Unhealthy for Sensitive Groups · UV High
108
Tue
💨
Moderate · UV High
71
Thu
💨
Moderate · UV Moderate
61