Air quality in Colma
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
15.3 µg/m³
WHO guideline 15
PM10
22.4 µg/m³
WHO guideline 45
Hour by hour (12h) US EPA AQI
1:00 AM
💨
PM2.5 15.3 µg/m³
58 Moderate
2:00 AM
💨
PM2.5 15.3 µg/m³
58 Moderate
3:00 AM
💨
PM2.5 15 µg/m³
57 Moderate
4:00 AM
💨
PM2.5 14.6 µg/m³
56 Moderate
5:00 AM
💨
PM2.5 14.8 µg/m³
57 Moderate
6:00 AM
💨
PM2.5 14.4 µg/m³
56 Moderate
7:00 AM
💨
PM2.5 14.3 µg/m³
56 Moderate
8:00 AM
💨
PM2.5 14.3 µg/m³
56 Moderate
9:00 AM
💨
PM2.5 14.1 µg/m³
55 Moderate
10:00 AM
💨
PM2.5 13.8 µg/m³
55 Moderate
11:00 AM
💨
PM2.5 13.2 µg/m³
53 Moderate
12:00 PM
💨
PM2.5 13 µg/m³
53 Moderate
Next few days daily max · US EPA AQI
Thu
💨
Moderate · UV High
57
Fri
💨
Moderate · UV Moderate
58
Sat
💨
Moderate · UV Moderate
55
Sun
💨
Moderate · UV Moderate
63
Mon
💨
Moderate · UV Moderate
60
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Precip NEXRAD · NOAA Temp Wind Clouds Terrain