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
7.1 µg/m³
WHO guideline 15
PM10
29.8 µg/m³
WHO guideline 45
Hour by hour (12h) US EPA AQI
11:00 AM
💨
PM2.5 7.1 µg/m³
42 Good
12:00 PM
💨
PM2.5 7.3 µg/m³
45 Good
1:00 PM
💨
PM2.5 7.3 µg/m³
44 Good
2:00 PM
💨
PM2.5 7.5 µg/m³
44 Good
3:00 PM
💨
PM2.5 7.8 µg/m³
45 Good
4:00 PM
💨
PM2.5 8.6 µg/m³
47 Good
5:00 PM
💨
PM2.5 10.5 µg/m³
46 Good
6:00 PM
💨
PM2.5 14.5 µg/m³
56 Moderate
7:00 PM
💨
PM2.5 18 µg/m³
63 Moderate
8:00 PM
💨
PM2.5 19.6 µg/m³
67 Moderate
9:00 PM
💨
PM2.5 19.3 µg/m³
66 Moderate
10:00 PM
💨
PM2.5 17.1 µg/m³
62 Moderate
Next few days daily max · US EPA AQI
Sun
💨
Moderate · UV High
67
Mon
💨
Moderate · UV Moderate
76
Tue
💨
Moderate · UV Moderate
69
Wed
💨
Moderate · UV Moderate
73
Thu
💨
Moderate · UV High
72
JavaScript is needed for the map — the city links below work without it.
Precip NEXRAD · NOAA Temp Wind Clouds Terrain