Air quality in Pacifica
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
9.3 µg/m³
WHO guideline 15
PM10
12.2 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
1:00 PM
💨
PM2.5 9.3 µg/m³
39Good
2:00 PM
💨
PM2.5 9.5 µg/m³
40Good
3:00 PM
💨
PM2.5 9.7 µg/m³
40Good
4:00 PM
💨
PM2.5 10 µg/m³
42Good
5:00 PM
💨
PM2.5 10.2 µg/m³
43Good
6:00 PM
💨
PM2.5 10.6 µg/m³
44Good
7:00 PM
💨
PM2.5 11.1 µg/m³
46Good
8:00 PM
💨
PM2.5 11.6 µg/m³
48Good
9:00 PM
💨
PM2.5 12.1 µg/m³
51Moderate
10:00 PM
💨
PM2.5 12.6 µg/m³
52Moderate
11:00 PM
💨
PM2.5 12.5 µg/m³
52Moderate
12:00 AM
💨
PM2.5 12.4 µg/m³
52Moderate
Next few days
daily max · US EPA AQI
Mon
💨
Moderate · UV High
52
Tue
💨
Moderate · UV Very high
65
Wed
💨
Moderate · UV Very high
62
Fri
💨
Good · UV Moderate
44