Air quality in Altoona
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
5.1 µg/m³
WHO guideline 15
PM10
5.5 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
4:00 AM
💨
PM2.5 5.1 µg/m³
31Good
5:00 AM
💨
PM2.5 5.3 µg/m³
29Good
6:00 AM
💨
PM2.5 5.6 µg/m³
27Good
7:00 AM
💨
PM2.5 6 µg/m³
26Good
8:00 AM
💨
PM2.5 7 µg/m³
29Good
9:00 AM
💨
PM2.5 6.8 µg/m³
29Good
10:00 AM
💨
PM2.5 5.4 µg/m³
32Good
11:00 AM
💨
PM2.5 4.5 µg/m³
37Good
12:00 PM
💨
PM2.5 5.3 µg/m³
43Good
1:00 PM
💨
PM2.5 5.8 µg/m³
48Good
2:00 PM
💨
PM2.5 6.1 µg/m³
50Good
3:00 PM
💨
PM2.5 6.3 µg/m³
56Moderate
Next few days
daily max · US EPA AQI
Thu
💨
Moderate · UV High
56
Fri
💨
Moderate · UV High
56
Sat
💨
Moderate · UV High
67
Mon
💨
Good · UV Moderate
26