Air quality in El Cajon
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
18.1 µg/m³
WHO guideline 15
PM10
32.1 µg/m³
WHO guideline 45
Hour by hour (12h) US EPA AQI
5:00 PM
💨
PM2.5 18.1 µg/m³
64 Moderate
6:00 PM
💨
PM2.5 18.3 µg/m³
64 Moderate
7:00 PM
💨
PM2.5 17.6 µg/m³
63 Moderate
8:00 PM
💨
PM2.5 18.2 µg/m³
64 Moderate
9:00 PM
💨
PM2.5 19.2 µg/m³
66 Moderate
10:00 PM
💨
PM2.5 18.2 µg/m³
64 Moderate
11:00 PM
💨
PM2.5 17.6 µg/m³
63 Moderate
12:00 AM
💨
PM2.5 17.2 µg/m³
62 Moderate
1:00 AM
💨
PM2.5 17 µg/m³
61 Moderate
2:00 AM
💨
PM2.5 16.5 µg/m³
60 Moderate
3:00 AM
💨
PM2.5 15.5 µg/m³
58 Moderate
4:00 AM
💨
PM2.5 14.7 µg/m³
56 Moderate
Next few days daily max · US EPA AQI
Mon
💨
Moderate · UV Moderate
66
Tue
💨
Moderate · UV High
68
Wed
💨
Moderate · UV Moderate
54
Thu
💨
Good · UV Moderate
41
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Precip NEXRAD · NOAA Temp Wind Clouds Terrain