Air quality in Courtenay
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
8 µg/m³
WHO guideline 15
PM10
8.4 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
2:00 AM
💨
PM2.5 8 µg/m³
33Good
3:00 AM
💨
PM2.5 7.1 µg/m³
30Good
4:00 AM
💨
PM2.5 6.5 µg/m³
27Good
5:00 AM
💨
PM2.5 6.1 µg/m³
25Good
6:00 AM
💨
PM2.5 5.3 µg/m³
22Good
7:00 AM
💨
PM2.5 4.5 µg/m³
22Good
8:00 AM
💨
PM2.5 3.9 µg/m³
24Good
9:00 AM
💨
PM2.5 4 µg/m³
27Good
10:00 AM
💨
PM2.5 4.2 µg/m³
32Good
11:00 AM
💨
PM2.5 4.4 µg/m³
35Good
12:00 PM
💨
PM2.5 4.7 µg/m³
39Good
1:00 PM
💨
PM2.5 5.1 µg/m³
42Good
Next few days
daily max · US EPA AQI
Fri
💨
Moderate · UV High
61
Sat
💨
Good · UV Moderate
43
Sun
💨
Good · UV Moderate
33
Mon
💨
Good · UV Moderate
39
Tue
💨
Good · UV Moderate
47