Air quality in Mount Royal
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
7.9 µg/m³
WHO guideline 15
PM10
8 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
11:00 PM
💨
PM2.5 7.9 µg/m³
33Good
12:00 AM
💨
PM2.5 7.5 µg/m³
31Good
1:00 AM
💨
PM2.5 7.2 µg/m³
30Good
2:00 AM
💨
PM2.5 7 µg/m³
29Good
3:00 AM
💨
PM2.5 6.9 µg/m³
29Good
4:00 AM
💨
PM2.5 6.8 µg/m³
28Good
5:00 AM
💨
PM2.5 7 µg/m³
29Good
6:00 AM
💨
PM2.5 7.3 µg/m³
30Good
7:00 AM
💨
PM2.5 7.7 µg/m³
32Good
8:00 AM
💨
PM2.5 8.1 µg/m³
34Good
9:00 AM
💨
PM2.5 8.4 µg/m³
35Good
10:00 AM
💨
PM2.5 8.9 µg/m³
37Good
Next few days
daily max · US EPA AQI
Wed
💨
Moderate · UV Moderate
92
Thu
💨
Good · UV Moderate
43
Fri
💨
Moderate · UV Very high
55
Sat
💨
Moderate · UV High
56
Sun
💨
Moderate · UV Moderate
51