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
29 µg/m³
WHO guideline 15
PM10
30 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
12:00 AM
💨
PM2.5 29 µg/m³
87Moderate
1:00 AM
💨
PM2.5 32 µg/m³
93Moderate
2:00 AM
💨
PM2.5 35.4 µg/m³
100Moderate
3:00 AM
💨
PM2.5 38.9 µg/m³
109Unhealthy for Sensitive Groups
4:00 AM
💨
PM2.5 42 µg/m³
117Unhealthy for Sensitive Groups
5:00 AM
💨
PM2.5 44.7 µg/m³
124Unhealthy for Sensitive Groups
6:00 AM
💨
PM2.5 46.9 µg/m³
129Unhealthy for Sensitive Groups
7:00 AM
💨
PM2.5 49.1 µg/m³
134Unhealthy for Sensitive Groups
8:00 AM
💨
PM2.5 52.7 µg/m³
143Unhealthy for Sensitive Groups
9:00 AM
💨
PM2.5 63.1 µg/m³
155Unhealthy
10:00 AM
💨
PM2.5 62.6 µg/m³
155Unhealthy
11:00 AM
💨
PM2.5 51 µg/m³
139Unhealthy for Sensitive Groups
Next few days
daily max · US EPA AQI
Sun
💨
Moderate · UV Moderate
80
Mon
💨
Unhealthy · UV High
155
Tue
💨
Moderate · UV High
70
Wed
💨
Moderate · UV High
60
Thu
💨
Unhealthy · UV Moderate
156