Air quality in Hamilton
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
6.3 µg/m³
WHO guideline 15
PM10
8.7 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
6:00 PM
💨
PM2.5 6.3 µg/m³
55Moderate
7:00 PM
💨
PM2.5 6.3 µg/m³
56Moderate
8:00 PM
💨
PM2.5 6 µg/m³
50Good
9:00 PM
💨
PM2.5 5.8 µg/m³
47Good
10:00 PM
💨
PM2.5 5.5 µg/m³
43Good
11:00 PM
💨
PM2.5 5 µg/m³
40Good
12:00 AM
💨
PM2.5 4.5 µg/m³
35Good
1:00 AM
💨
PM2.5 4.3 µg/m³
32Good
2:00 AM
💨
PM2.5 4.3 µg/m³
30Good
3:00 AM
💨
PM2.5 4.6 µg/m³
28Good
4:00 AM
💨
PM2.5 5.3 µg/m³
26Good
5:00 AM
💨
PM2.5 6.3 µg/m³
26Good
Next few days
daily max · US EPA AQI
Tue
💨
Moderate · UV Very high
56
Wed
💨
Good · UV Very high
48
Thu
💨
Moderate · UV Very high
55
Fri
💨
Good · UV Very high
49
Sat
💨
Good · UV Very high
37