Air quality in Brea
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
20.5 µg/m³
WHO guideline 15
PM10
22.5 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
5:00 AM
💨
PM2.5 20.5 µg/m³
69Moderate
6:00 AM
💨
PM2.5 21 µg/m³
70Moderate
7:00 AM
💨
PM2.5 21.6 µg/m³
71Moderate
8:00 AM
💨
PM2.5 21 µg/m³
70Moderate
9:00 AM
💨
PM2.5 17.3 µg/m³
62Moderate
10:00 AM
💨
PM2.5 16.6 µg/m³
60Moderate
11:00 AM
💨
PM2.5 16.4 µg/m³
60Moderate
12:00 PM
💨
PM2.5 16.3 µg/m³
60Moderate
1:00 PM
💨
PM2.5 16.2 µg/m³
60Moderate
2:00 PM
💨
PM2.5 16.5 µg/m³
65Moderate
3:00 PM
💨
PM2.5 16.8 µg/m³
83Moderate
4:00 PM
💨
PM2.5 16.8 µg/m³
96Moderate
Next few days
daily max · US EPA AQI
Mon
💨
Moderate · UV Very high
96
Tue
💨
Moderate · UV Very high
74
Wed
💨
Unhealthy for Sensitive Groups · UV Very high
103
Thu
💨
Moderate · UV Very high
95
Fri
💨
Moderate · UV Moderate
79