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)
44
Good
Fort Smith, Arkansas
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
8.21 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
31.52 μg/m³
0
55
155
255
425
605+
5.68 ppb
0
55
71
86
201
201+
1.35 ppb
0
36
76
186
605
1005+
3.38 ppb
0
54
101
361
1250
2050+
0.14 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 52
Moderate
10.45μg/m³
PM2.5
30.33μg/m³
PM10
6.90ppb
O3
1.12ppb
SO2
5.20ppb
NO2
0.16ppm
CO
AQI 49
Good
9.21μg/m³
PM2.5
27.74μg/m³
PM10
18.60ppb
O3
0.87ppb
SO2
4.49ppb
NO2
0.15ppm
CO
AQI 54
Moderate
10.85μg/m³
PM2.5
36.51μg/m³
PM10
21.49ppb
O3
1.34ppb
SO2
6.00ppb
NO2
0.17ppm
CO
AQI 49
Good
9.20μg/m³
PM2.5
28.40μg/m³
PM10
18.64ppb
O3
1.08ppb
SO2
4.65ppb
NO2
0.16ppm
CO
AQI 62
Moderate
15.37μg/m³
PM2.5
68.69μg/m³
PM10
24.73ppb
O3
1.45ppb
SO2
6.02ppb
NO2
0.17ppm
CO
AQI 54
Moderate
10.56μg/m³
PM2.5
31.19μg/m³
PM10
20.38ppb
O3
0.99ppb
SO2
4.51ppb
NO2
0.18ppm
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 06:00:00 on 2025-07-16.
The best air quality in Fort Smith, Arkansas was recorded at 06:00:00 on 2025-07-16.
The real-time air quality index in Fort Smith, Arkansas is 49, 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 8.976 μg/m3.
The current PM10 levels in Fort Smith, Arkansas are 29.5 μg/m3.
The current carbon monoxide (CO) level in Fort Smith, Arkansas is 0.16 ppm.
The current sulfur dioxide (SO2) levels in Fort Smith, Arkansas are 1.104 ppb.
The current ozone (O3) levels at Fort Smith, Arkansas is 5.28 ppm.
The current nitrogen dioxide (NO2) levels at Fort Smith, Arkansas is 5.313 ppb.
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