Stay updated with real-time air quality in Marion, 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)
40
Good
Marion, Arkansas
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.29 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
27.99 μg/m³
0
55
155
255
425
605+
43.10 ppb
0
55
71
86
201
201+
1.54 ppb
0
36
76
186
605
1005+
5.64 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Marion, Arkansas
Marion, Arkansas
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AQI 42
Good
6.21μg/m³
PM2.5
27.77μg/m³
PM10
45.48ppb
O3
1.58ppb
SO2
5.61ppb
NO2
0.20ppm
CO
AQI 48
Good
5.99μg/m³
PM2.5
27.49μg/m³
PM10
52.13ppb
O3
1.72ppb
SO2
5.59ppb
NO2
0.20ppm
CO
AQI 49
Good
5.97μg/m³
PM2.5
26.99μg/m³
PM10
53.33ppb
O3
1.74ppb
SO2
5.53ppb
NO2
0.20ppm
CO
AQI 51
Moderate
5.67μg/m³
PM2.5
25.65μg/m³
PM10
54.93ppb
O3
1.70ppb
SO2
5.38ppb
NO2
0.20ppm
CO
AQI 44
Good
5.74μg/m³
PM2.5
27.05μg/m³
PM10
48.24ppb
O3
1.79ppb
SO2
5.65ppb
NO2
0.20ppm
CO
AQI 51
Moderate
5.25μg/m³
PM2.5
21.42μg/m³
PM10
55.19ppb
O3
1.69ppb
SO2
4.63ppb
NO2
0.20ppm
CO
The air quality data for Arkansas, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for Marion, Arkansas are available every hour.
Marion, Arkansas experienced its worst air quality at 05:00:00, 2026-10-22.
The best air quality in Marion, Arkansas was observed at 08:00:00 on 2026-10-21.
The air quality in Marion, Arkansas right now is Good, with an AQI of 49.
In Marion, Arkansas, PM2.5 is the most frequently found pollutant.
When air quality in Marion, Arkansas is compromised, staying indoors and wearing a mask can reduce health risks.
Marion, Arkansas currently has a PM2.5 concentration of 9.48 μg/m3.
Marion, Arkansas currently has a PM10 concentration of 42.858 μg/m3.
The current carbon monoxide (CO) level in Marion, Arkansas is 0.344 ppm.
The current sulfur dioxide (SO2) concentration in Marion, Arkansas is 1.298 ppb.
Marion, Arkansas currently has an ozone (O3) concentration of 29.101 ppm.
The current level of nitrogen dioxide (NO2) in Marion, Arkansas is 4.815 ppb.
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