Air quality in Perth
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
5 µg/m³
WHO guideline 15
PM10
5 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
1:00 PM
💨
PM2.5 5 µg/m³
43Good
2:00 PM
💨
PM2.5 4.8 µg/m³
46Good
3:00 PM
💨
PM2.5 4.4 µg/m³
47Good
4:00 PM
💨
PM2.5 3.8 µg/m³
47Good
5:00 PM
💨
PM2.5 3 µg/m³
45Good
6:00 PM
💨
PM2.5 3 µg/m³
40Good
7:00 PM
💨
PM2.5 3.5 µg/m³
32Good
8:00 PM
💨
PM2.5 4.2 µg/m³
26Good
9:00 PM
💨
PM2.5 5.5 µg/m³
23Good
10:00 PM
💨
PM2.5 5.8 µg/m³
24Good
11:00 PM
💨
PM2.5 5.3 µg/m³
22Good
12:00 AM
💨
PM2.5 5 µg/m³
21Good
Next few days
daily max · US EPA AQI
Wed
💨
Good · UV Moderate
47
Thu
💨
Moderate · UV High
55
Fri
💨
Moderate · UV High
60
Sat
💨
Good · UV Moderate
49