Air quality in Lake Forest
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
5.3 µg/m³
WHO guideline 15
PM10
5.5 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
4:00 AM
💨
PM2.5 5.3 µg/m³
22Good
5:00 AM
💨
PM2.5 5.4 µg/m³
23Good
6:00 AM
💨
PM2.5 5.4 µg/m³
23Good
7:00 AM
💨
PM2.5 5.4 µg/m³
23Good
8:00 AM
💨
PM2.5 5.7 µg/m³
24Good
9:00 AM
💨
PM2.5 5.7 µg/m³
26Good
10:00 AM
💨
PM2.5 5.5 µg/m³
32Good
11:00 AM
💨
PM2.5 5.7 µg/m³
36Good
12:00 PM
💨
PM2.5 6.1 µg/m³
40Good
1:00 PM
💨
PM2.5 6.4 µg/m³
43Good
2:00 PM
💨
PM2.5 6.6 µg/m³
45Good
3:00 PM
💨
PM2.5 6.7 µg/m³
46Good
Next few days
daily max · US EPA AQI
Mon
💨
Moderate · UV High
57
Tue
💨
Moderate · UV High
100
Wed
💨
Moderate · UV High
60
Thu
💨
Moderate · UV High
51