Stay updated with real-time air quality in Duncan, Oklahoma 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)
56
Moderate
Duncan, Oklahoma
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
12.30 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
33.68 μg/m³
0
55
155
255
425
605+
23.08 ppb
0
55
71
86
201
201+
0.75 ppb
0
36
76
186
605
1005+
3.74 ppb
0
54
101
361
1250
2050+
0.39 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Duncan, Oklahoma
Duncan, Oklahoma
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AQI 54
Moderate
11.30μg/m³
PM2.5
34.02μg/m³
PM10
21.64ppb
O3
0.76ppb
SO2
3.90ppb
NO2
0.39ppm
CO
AQI 56
Moderate
11.70μg/m³
PM2.5
31.45μg/m³
PM10
23.00ppb
O3
0.77ppb
SO2
4.39ppb
NO2
0.41ppm
CO
AQI 52
Moderate
10.05μg/m³
PM2.5
44.40μg/m³
PM10
31.89ppb
O3
0.57ppb
SO2
4.48ppb
NO2
0.23ppm
CO
AQI 54
Moderate
10.81μg/m³
PM2.5
48.09μg/m³
PM10
32.54ppb
O3
0.59ppb
SO2
4.59ppb
NO2
0.22ppm
CO
AQI 58
Moderate
13.28μg/m³
PM2.5
32.01μg/m³
PM10
21.77ppb
O3
0.73ppb
SO2
2.55ppb
NO2
0.38ppm
CO
AQI 52
Moderate
10.12μg/m³
PM2.5
46.91μg/m³
PM10
25.42ppb
O3
0.77ppb
SO2
14.54ppb
NO2
0.43ppm
CO
The air quality data for Oklahoma, 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 Duncan, Oklahoma are available every hour.
Duncan, Oklahoma experienced its worst air quality at 04:00:00, 2026-01-23.
The best air quality in Duncan, Oklahoma was observed at 02:00:00 on 2026-01-22.
The air quality in Duncan, Oklahoma right now is Moderate, with an AQI of 56.
In Duncan, Oklahoma, PM2.5 is the most frequently found pollutant.
When air quality in Duncan, Oklahoma is compromised, staying indoors and wearing a mask can reduce health risks.
Duncan, Oklahoma currently has a PM2.5 concentration of 12.304 μg/m3.
Duncan, Oklahoma currently has a PM10 concentration of 33.677 μg/m3.
The current carbon monoxide (CO) level in Duncan, Oklahoma is 0.393 ppm.
The current sulfur dioxide (SO2) concentration in Duncan, Oklahoma is 0.754 ppb.
Duncan, Oklahoma currently has an ozone (O3) concentration of 23.078 ppm.
The current level of nitrogen dioxide (NO2) in Duncan, Oklahoma is 3.739 ppb.
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