Air quality in Los Altos
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
18.3 µg/m³
WHO guideline 15
PM10
24.4 µg/m³
WHO guideline 45
Hour by hour (12h) US EPA AQI
10:00 PM
💨
PM2.5 18.3 µg/m³
64 Moderate
11:00 PM
💨
PM2.5 18.3 µg/m³
64 Moderate
12:00 AM
💨
PM2.5 18.5 µg/m³
64 Moderate
1:00 AM
💨
PM2.5 18.5 µg/m³
64 Moderate
2:00 AM
💨
PM2.5 18.7 µg/m³
65 Moderate
3:00 AM
💨
PM2.5 18.8 µg/m³
65 Moderate
4:00 AM
💨
PM2.5 18.5 µg/m³
64 Moderate
5:00 AM
💨
PM2.5 17.1 µg/m³
62 Moderate
6:00 AM
💨
PM2.5 16.6 µg/m³
60 Moderate
7:00 AM
💨
PM2.5 16.4 µg/m³
60 Moderate
8:00 AM
💨
PM2.5 16.4 µg/m³
60 Moderate
9:00 AM
💨
PM2.5 16.5 µg/m³
60 Moderate
Next few days daily max · US EPA AQI
Wed
💨
Moderate · UV High
80
Thu
💨
Moderate · UV High
65
Fri
💨
Moderate · UV Moderate
68
Sat
💨
Moderate · UV Moderate
52
Sun
💨
Good · UV Moderate
46
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Precip NEXRAD · NOAA Temp Wind Clouds Terrain