Air quality in Caledonia
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
11.5 µg/m³
WHO guideline 15
PM10
11.8 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
12:00 AM
💨
PM2.5 11.5 µg/m³
48Good
1:00 AM
💨
PM2.5 12.7 µg/m³
52Moderate
2:00 AM
💨
PM2.5 12.1 µg/m³
51Moderate
3:00 AM
💨
PM2.5 10 µg/m³
42Good
4:00 AM
💨
PM2.5 8.9 µg/m³
37Good
5:00 AM
💨
PM2.5 8.7 µg/m³
36Good
6:00 AM
💨
PM2.5 7.5 µg/m³
31Good
7:00 AM
💨
PM2.5 6.4 µg/m³
27Good
8:00 AM
💨
PM2.5 5 µg/m³
26Good
9:00 AM
💨
PM2.5 4.4 µg/m³
28Good
10:00 AM
💨
PM2.5 2.5 µg/m³
33Good
11:00 AM
💨
PM2.5 2 µg/m³
37Good
Next few days
daily max · US EPA AQI
Sat
💨
Moderate · UV High
52