Air quality in San Carlos
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
8.9 µg/m³
WHO guideline 15
PM10
13.3 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
12:00 AM
💨
PM2.5 8.9 µg/m³
37Good
1:00 AM
💨
PM2.5 8.7 µg/m³
36Good
2:00 AM
💨
PM2.5 8.4 µg/m³
35Good
3:00 AM
💨
PM2.5 7.9 µg/m³
33Good
4:00 AM
💨
PM2.5 7.5 µg/m³
31Good
5:00 AM
💨
PM2.5 7 µg/m³
29Good
6:00 AM
💨
PM2.5 6.7 µg/m³
28Good
7:00 AM
💨
PM2.5 6.6 µg/m³
28Good
8:00 AM
💨
PM2.5 6.5 µg/m³
27Good
9:00 AM
💨
PM2.5 6.4 µg/m³
27Good
10:00 AM
💨
PM2.5 6 µg/m³
27Good
11:00 AM
💨
PM2.5 5.6 µg/m³
28Good
Next few days
daily max · US EPA AQI
Mon
💨
Good · UV Very high
37
Tue
💨
Good · UV Very high
33
Wed
💨
Good · UV Very high
38
Thu
💨
Good · UV Very high
40