Stay updated with real-time air quality in Fort Smith, Arkansas featuring accurate data on AQI, PM2.5, PM10, O3, NO2, SO2, and CO levels. Use our interactive map and detailed forecasts to monitor pollution trends, manage health risks, and plan your daily activities with confidence.
Live AQI (Air Quality Index)
38
Good
Fort Smith, Arkansas
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
7.31 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
30.46 μg/m³
0
55
155
255
425
605+
14.37 ppb
0
55
71
86
201
201+
0.56 ppb
0
36
76
186
605
1005+
2.86 ppb
0
54
101
361
1250
2050+
0.16 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Fort Smith, Arkansas
Fort Smith, Arkansas
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AQI 33
Good
5.84μg/m³
PM2.5
27.81μg/m³
PM10
12.23ppb
O3
0.52ppb
SO2
4.41ppb
NO2
0.16ppm
CO
AQI 38
Good
7.07μg/m³
PM2.5
23.02μg/m³
PM10
21.37ppb
O3
0.49ppb
SO2
3.31ppb
NO2
0.15ppm
CO
AQI 44
Good
8.32μg/m³
PM2.5
25.86μg/m³
PM10
18.58ppb
O3
0.54ppb
SO2
3.45ppb
NO2
0.17ppm
CO
AQI 38
Good
7.43μg/m³
PM2.5
25.37μg/m³
PM10
20.92ppb
O3
0.52ppb
SO2
3.31ppb
NO2
0.16ppm
CO
AQI 54
Moderate
10.72μg/m³
PM2.5
46.51μg/m³
PM10
21.77ppb
O3
0.54ppb
SO2
3.36ppb
NO2
0.17ppm
CO
AQI 33
Good
6.42μg/m³
PM2.5
19.36μg/m³
PM10
23.13ppb
O3
0.46ppb
SO2
3.14ppb
NO2
0.17ppm
CO
Air quality measurements for Arkansas, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for Fort Smith, Arkansas is updated on an hourly basis.
The worst air quality in Fort Smith, Arkansas was recorded at 04:00:00 on 2025-07-20.
The best air quality in Fort Smith, Arkansas was recorded at 05:00:00 on 2025-07-21.
The real-time air quality index in Fort Smith, Arkansas is 27, currently categorized as Good.
The most common pollutant in Fort Smith, Arkansas is PM2.5.
If the air quality in Fort Smith, Arkansas is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Fort Smith, Arkansas at present are 5.033 μg/m3.
The current PM10 levels in Fort Smith, Arkansas are 25.763 μg/m3.
The current carbon monoxide (CO) level in Fort Smith, Arkansas is 0.159 ppm.
The current sulfur dioxide (SO2) levels in Fort Smith, Arkansas are 0.52 ppb.
The current ozone (O3) levels at Fort Smith, Arkansas is 9.802 ppm.
The current nitrogen dioxide (NO2) levels at Fort Smith, Arkansas is 4.559 ppb.
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