Air quality in Grand Forks
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
19.3 µg/m³
WHO guideline 15
PM10
19.3 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
1:00 PM
💨
PM2.5 19.3 µg/m³
66Moderate
2:00 PM
💨
PM2.5 21.7 µg/m³
71Moderate
3:00 PM
💨
PM2.5 21.7 µg/m³
71Moderate
4:00 PM
💨
PM2.5 20.2 µg/m³
68Moderate
5:00 PM
💨
PM2.5 17.8 µg/m³
63Moderate
6:00 PM
💨
PM2.5 14.7 µg/m³
56Moderate
7:00 PM
💨
PM2.5 11.3 µg/m³
47Good
8:00 PM
💨
PM2.5 8.4 µg/m³
35Good
9:00 PM
💨
PM2.5 6.2 µg/m³
29Good
10:00 PM
💨
PM2.5 4.3 µg/m³
26Good
11:00 PM
💨
PM2.5 3.1 µg/m³
23Good
12:00 AM
💨
PM2.5 2.8 µg/m³
20Good
Next few days
daily max · US EPA AQI
Wed
💨
Moderate · UV Moderate
71
Sun
💨
Moderate · UV Very high
52