Air quality in Fremont
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
10.4 µg/m³
WHO guideline 15
PM10
11.3 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
1:00 AM
💨
PM2.5 10.4 µg/m³
43Good
2:00 AM
💨
PM2.5 10.6 µg/m³
44Good
3:00 AM
💨
PM2.5 10.9 µg/m³
45Good
4:00 AM
💨
PM2.5 10.7 µg/m³
45Good
5:00 AM
💨
PM2.5 9.8 µg/m³
41Good
6:00 AM
💨
PM2.5 8.8 µg/m³
37Good
7:00 AM
💨
PM2.5 7.8 µg/m³
33Good
8:00 AM
💨
PM2.5 7.1 µg/m³
30Good
9:00 AM
💨
PM2.5 6.4 µg/m³
27Good
10:00 AM
💨
PM2.5 7 µg/m³
31Good
11:00 AM
💨
PM2.5 7.6 µg/m³
37Good
12:00 PM
💨
PM2.5 8.1 µg/m³
45Good
Next few days
daily max · US EPA AQI
Fri
💨
Moderate · UV Very high
61
Sat
💨
Moderate · UV Very high
98
Sun
💨
Unhealthy for Sensitive Groups · UV Very high
119
Mon
💨
Moderate · UV Very high
100
Tue
💨
No data · UV Very high
—