Air quality in Roy
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
14.8 µg/m³
WHO guideline 15
PM10
15.5 µg/m³
WHO guideline 45
Hour by hour (12h) US EPA AQI
6:00 PM
💨
PM2.5 14.8 µg/m³
57 Moderate
7:00 PM
💨
PM2.5 16.7 µg/m³
61 Moderate
8:00 PM
💨
PM2.5 17.8 µg/m³
63 Moderate
9:00 PM
💨
PM2.5 18.1 µg/m³
64 Moderate
10:00 PM
💨
PM2.5 17.6 µg/m³
63 Moderate
11:00 PM
💨
PM2.5 15.9 µg/m³
59 Moderate
12:00 AM
💨
PM2.5 12.9 µg/m³
53 Moderate
1:00 AM
💨
PM2.5 11.3 µg/m³
47 Good
2:00 AM
💨
PM2.5 10.1 µg/m³
42 Good
3:00 AM
💨
PM2.5 8.8 µg/m³
37 Good
4:00 AM
💨
PM2.5 8 µg/m³
33 Good
5:00 AM
💨
PM2.5 7.4 µg/m³
31 Good
Next few days daily max · US EPA AQI
Thu
💨
Moderate · UV Moderate
64
Fri
💨
Moderate · UV Low
54
Sun
💨
Moderate · UV Moderate
54
Mon
💨
Moderate · UV Moderate
52
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Precip NEXRAD · NOAA Temp Wind Clouds Terrain