Air quality in Guelph
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
10.9 µg/m³
WHO guideline 15
PM10
10.9 µg/m³
WHO guideline 45
Hour by hour (12h) US EPA AQI
12:00 PM
💨
PM2.5 10.9 µg/m³
45 Good
1:00 PM
💨
PM2.5 7.3 µg/m³
30 Good
2:00 PM
💨
PM2.5 5.8 µg/m³
31 Good
3:00 PM
💨
PM2.5 5.7 µg/m³
34 Good
4:00 PM
💨
PM2.5 6.1 µg/m³
36 Good
5:00 PM
💨
PM2.5 6.4 µg/m³
37 Good
6:00 PM
💨
PM2.5 7 µg/m³
37 Good
7:00 PM
💨
PM2.5 8.3 µg/m³
35 Good
8:00 PM
💨
PM2.5 9.1 µg/m³
38 Good
9:00 PM
💨
PM2.5 9.4 µg/m³
39 Good
10:00 PM
💨
PM2.5 9.3 µg/m³
39 Good
11:00 PM
💨
PM2.5 9 µg/m³
38 Good
Next few days daily max · US EPA AQI
Mon
💨
Moderate · UV Moderate
98
Tue
💨
Moderate · UV Moderate
61
Wed
💨
Good · UV Moderate
31
Thu
💨
Good · UV Moderate
32
Fri
💨
Good · UV Moderate
34
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Precip NEXRAD · NOAA Temp Wind Clouds Terrain