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
2.5 µg/m³
WHO guideline 15
PM10
2.5 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
1:00 PM
💨
PM2.5 2.5 µg/m³
43Good
2:00 PM
💨
PM2.5 2.8 µg/m³
45Good
3:00 PM
💨
PM2.5 2.9 µg/m³
46Good
4:00 PM
💨
PM2.5 3 µg/m³
46Good
5:00 PM
💨
PM2.5 3 µg/m³
45Good
6:00 PM
💨
PM2.5 3.1 µg/m³
41Good
7:00 PM
💨
PM2.5 3 µg/m³
35Good
8:00 PM
💨
PM2.5 3.1 µg/m³
30Good
9:00 PM
💨
PM2.5 3.5 µg/m³
26Good
10:00 PM
💨
PM2.5 3.9 µg/m³
22Good
11:00 PM
💨
PM2.5 4.2 µg/m³
19Good
12:00 AM
💨
PM2.5 3.8 µg/m³
19Good
Next few days
daily max · US EPA AQI
Thu
💨
Moderate · UV High
65
Fri
💨
Moderate · UV High
63
Sat
💨
Good · UV Moderate
41