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
5.1 µg/m³
WHO guideline 15
PM10
7.4 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
3:00 PM
💨
PM2.5 5.1 µg/m³
29Good
4:00 PM
💨
PM2.5 5.3 µg/m³
29Good
5:00 PM
💨
PM2.5 5.6 µg/m³
28Good
6:00 PM
💨
PM2.5 6 µg/m³
26Good
7:00 PM
💨
PM2.5 6.6 µg/m³
28Good
8:00 PM
💨
PM2.5 7.2 µg/m³
30Good
9:00 PM
💨
PM2.5 7.7 µg/m³
32Good
10:00 PM
💨
PM2.5 7.8 µg/m³
33Good
11:00 PM
💨
PM2.5 7.8 µg/m³
33Good
12:00 AM
💨
PM2.5 7.6 µg/m³
32Good
1:00 AM
💨
PM2.5 7.3 µg/m³
30Good
2:00 AM
💨
PM2.5 7 µg/m³
29Good
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