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.
US AQI · EPA
119
Unhealthy for Sensitive Groups
PM2.5
21.1 µg/m³
WHO guideline 15
PM10
22.9 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
1:00 PM
💨
PM2.5 21.1 µg/m³
119Unhealthy for Sensitive Groups
2:00 PM
💨
PM2.5 21.2 µg/m³
138Unhealthy for Sensitive Groups
3:00 PM
💨
PM2.5 21.1 µg/m³
147Unhealthy for Sensitive Groups
4:00 PM
💨
PM2.5 21.5 µg/m³
144Unhealthy for Sensitive Groups
5:00 PM
💨
PM2.5 22.3 µg/m³
131Unhealthy for Sensitive Groups
6:00 PM
💨
PM2.5 23.5 µg/m³
103Unhealthy for Sensitive Groups
7:00 PM
💨
PM2.5 24.9 µg/m³
78Moderate
8:00 PM
💨
PM2.5 26 µg/m³
80Moderate
9:00 PM
💨
PM2.5 27 µg/m³
82Moderate
10:00 PM
💨
PM2.5 28.6 µg/m³
86Moderate
11:00 PM
💨
PM2.5 29.6 µg/m³
88Moderate
12:00 AM
💨
PM2.5 29.7 µg/m³
88Moderate
Next few days
daily max · US EPA AQI
Sun
💨
Unhealthy for Sensitive Groups · UV Very high
147
Mon
💨
Unhealthy for Sensitive Groups · UV Very high
126
Tue
💨
Moderate · UV Very high
93
Wed
💨
Unhealthy for Sensitive Groups · UV Very high
111
Thu
💨
Moderate · UV Very high
84