Air quality in Fairfield
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
28.2 µg/m³
WHO guideline 15
PM10
29.2 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
1:00 AM
💨
PM2.5 28.2 µg/m³
85Moderate
2:00 AM
💨
PM2.5 27.9 µg/m³
84Moderate
3:00 AM
💨
PM2.5 27.3 µg/m³
83Moderate
4:00 AM
💨
PM2.5 28.1 µg/m³
85Moderate
5:00 AM
💨
PM2.5 29.9 µg/m³
88Moderate
6:00 AM
💨
PM2.5 30.4 µg/m³
89Moderate
7:00 AM
💨
PM2.5 27.5 µg/m³
83Moderate
8:00 AM
💨
PM2.5 25.3 µg/m³
79Moderate
9:00 AM
💨
PM2.5 17.3 µg/m³
62Moderate
10:00 AM
💨
PM2.5 14.2 µg/m³
55Moderate
11:00 AM
💨
PM2.5 11.5 µg/m³
48Good
12:00 PM
💨
PM2.5 10.6 µg/m³
44Good
Next few days
daily max · US EPA AQI
Tue
💨
Unhealthy for Sensitive Groups · UV Moderate
103
Wed
💨
Moderate · UV Moderate
89
Thu
💨
Moderate · UV Moderate
84
Sat
💨
Moderate · UV High
51