Air quality in Fort Smith
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
14.7 µg/m³
WHO guideline 15
PM10
15.1 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
12:00 AM
💨
PM2.5 14.7 µg/m³
56Moderate
1:00 AM
💨
PM2.5 15 µg/m³
57Moderate
2:00 AM
💨
PM2.5 15.1 µg/m³
57Moderate
3:00 AM
💨
PM2.5 14.9 µg/m³
57Moderate
4:00 AM
💨
PM2.5 14.6 µg/m³
56Moderate
5:00 AM
💨
PM2.5 14.4 µg/m³
56Moderate
6:00 AM
💨
PM2.5 14.1 µg/m³
55Moderate
7:00 AM
💨
PM2.5 13.8 µg/m³
55Moderate
8:00 AM
💨
PM2.5 13.2 µg/m³
53Moderate
9:00 AM
💨
PM2.5 10.4 µg/m³
43Good
10:00 AM
💨
PM2.5 9.2 µg/m³
43Good
11:00 AM
💨
PM2.5 8.1 µg/m³
46Good
Next few days
daily max · US EPA AQI
Mon
💨
Moderate · UV Very high
80
Tue
💨
Moderate · UV Very high
57
Wed
💨
Good · UV Very high
43
Thu
💨
Good · UV Very high
45
Fri
💨
Good · UV Very high
45