Air quality in Catalina Foothills
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
5.9 µg/m³
WHO guideline 15
PM10
6.6 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
11:00 PM
💨
PM2.5 5.9 µg/m³
25Good
12:00 AM
💨
PM2.5 6.1 µg/m³
25Good
1:00 AM
💨
PM2.5 6.1 µg/m³
25Good
2:00 AM
💨
PM2.5 6.1 µg/m³
25Good
3:00 AM
💨
PM2.5 6 µg/m³
25Good
4:00 AM
💨
PM2.5 6 µg/m³
25Good
5:00 AM
💨
PM2.5 5.9 µg/m³
25Good
6:00 AM
💨
PM2.5 6.3 µg/m³
26Good
7:00 AM
💨
PM2.5 5.8 µg/m³
24Good
8:00 AM
💨
PM2.5 5.9 µg/m³
26Good
9:00 AM
💨
PM2.5 4.9 µg/m³
31Good
10:00 AM
💨
PM2.5 5 µg/m³
36Good
Next few days
daily max · US EPA AQI
Tue
💨
Good · UV Very high
50
Wed
💨
Good · UV Very high
43
Thu
💨
Good · UV Very high
43
Fri
💨
Good · UV Very high
45
Sat
💨
Good · UV Very high
39