Air quality in Pasadena
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
13 µg/m³
WHO guideline 15
PM10
16.2 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
11:00 PM
💨
PM2.5 13 µg/m³
53Moderate
12:00 AM
💨
PM2.5 13.4 µg/m³
54Moderate
1:00 AM
💨
PM2.5 13.5 µg/m³
54Moderate
2:00 AM
💨
PM2.5 14.2 µg/m³
55Moderate
3:00 AM
💨
PM2.5 15.1 µg/m³
57Moderate
4:00 AM
💨
PM2.5 16.2 µg/m³
60Moderate
5:00 AM
💨
PM2.5 17.2 µg/m³
62Moderate
6:00 AM
💨
PM2.5 18.5 µg/m³
64Moderate
7:00 AM
💨
PM2.5 19.7 µg/m³
67Moderate
8:00 AM
💨
PM2.5 18.7 µg/m³
65Moderate
9:00 AM
💨
PM2.5 16.8 µg/m³
61Moderate
10:00 AM
💨
PM2.5 15.7 µg/m³
59Moderate
Next few days
daily max · US EPA AQI
Thu
💨
Moderate · UV Very high
60
Fri
💨
Moderate · UV Very high
67
Sat
💨
Moderate · UV Very high
75
Sun
💨
Unhealthy for Sensitive Groups · UV Very high
120
Mon
💨
Moderate · UV Very high
86