Air quality in San Leandro
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
8.4 µg/m³
WHO guideline 15
PM10
10.5 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
4:00 AM
💨
PM2.5 8.4 µg/m³
35Good
5:00 AM
💨
PM2.5 7.8 µg/m³
33Good
6:00 AM
💨
PM2.5 7.4 µg/m³
31Good
7:00 AM
💨
PM2.5 7.4 µg/m³
31Good
8:00 AM
💨
PM2.5 7.5 µg/m³
31Good
9:00 AM
💨
PM2.5 7.9 µg/m³
33Good
10:00 AM
💨
PM2.5 7.7 µg/m³
32Good
11:00 AM
💨
PM2.5 7.7 µg/m³
32Good
12:00 PM
💨
PM2.5 7.1 µg/m³
30Good
1:00 PM
💨
PM2.5 6.2 µg/m³
26Good
2:00 PM
💨
PM2.5 5.5 µg/m³
23Good
3:00 PM
💨
PM2.5 5.7 µg/m³
27Good
Next few days
daily max · US EPA AQI
Sat
💨
Good · UV Moderate
41
Mon
💨
Moderate · UV Moderate
54
Tue
💨
No data · UV High
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