Air quality in Duluth
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
11.7 µg/m³
WHO guideline 15
PM10
12.9 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
9:00 PM
💨
PM2.5 11.7 µg/m³
49Good
10:00 PM
💨
PM2.5 14.6 µg/m³
56Moderate
11:00 PM
💨
PM2.5 17.9 µg/m³
63Moderate
12:00 AM
💨
PM2.5 19.7 µg/m³
67Moderate
1:00 AM
💨
PM2.5 19.7 µg/m³
67Moderate
2:00 AM
💨
PM2.5 19.8 µg/m³
67Moderate
3:00 AM
💨
PM2.5 21.5 µg/m³
71Moderate
4:00 AM
💨
PM2.5 23.5 µg/m³
75Moderate
5:00 AM
💨
PM2.5 22.5 µg/m³
73Moderate
6:00 AM
💨
PM2.5 20.5 µg/m³
69Moderate
7:00 AM
💨
PM2.5 18.7 µg/m³
65Moderate
8:00 AM
💨
PM2.5 17.5 µg/m³
62Moderate
Next few days
daily max · US EPA AQI
Thu
💨
Moderate · UV Very high
76
Fri
💨
Moderate · UV Very high
98
Sat
💨
Moderate · UV Very high
91
Sun
💨
Unhealthy for Sensitive Groups · UV Very high
110
Mon
💨
Moderate · UV Very high
77