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
11.1 µg/m³
WHO guideline 15
PM10
14.5 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
6:00 PM
💨
PM2.5 11.1 µg/m³
60Moderate
7:00 PM
💨
PM2.5 11.3 µg/m³
50Good
8:00 PM
💨
PM2.5 12.7 µg/m³
52Moderate
9:00 PM
💨
PM2.5 14.4 µg/m³
56Moderate
10:00 PM
💨
PM2.5 15.7 µg/m³
59Moderate
11:00 PM
💨
PM2.5 16.5 µg/m³
60Moderate
12:00 AM
💨
PM2.5 16.8 µg/m³
61Moderate
1:00 AM
💨
PM2.5 16.7 µg/m³
61Moderate
2:00 AM
💨
PM2.5 16.7 µg/m³
61Moderate
3:00 AM
💨
PM2.5 16.9 µg/m³
61Moderate
4:00 AM
💨
PM2.5 16.8 µg/m³
61Moderate
5:00 AM
💨
PM2.5 16.9 µg/m³
61Moderate
Next few days
daily max · US EPA AQI
Fri
💨
Moderate · UV Very high
80
Sat
💨
Moderate · UV Very high
66
Sun
💨
Moderate · UV Very high
58
Mon
💨
Moderate · UV High
70
Tue
💨
Good · UV Very high
44