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)
66
Moderate
Duncan, Oklahoma
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
16.95 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
21.00 μg/m³
0
55
155
255
425
605+
10.66 ppb
0
55
71
86
201
201+
0.55 ppb
0
36
76
186
605
1005+
5.51 ppb
0
54
101
361
1250
2050+
0.28 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Duncan, Oklahoma
Duncan, Oklahoma
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AQI 56
Moderate
12.04μg/m³
PM2.5
17.12μg/m³
PM10
14.71ppb
O3
0.59ppb
SO2
5.43ppb
NO2
0.28ppm
CO
AQI 58
Moderate
13.36μg/m³
PM2.5
34.78μg/m³
PM10
16.26ppb
O3
0.56ppb
SO2
5.47ppb
NO2
0.28ppm
CO
AQI 64
Moderate
16.10μg/m³
PM2.5
68.86μg/m³
PM10
16.55ppb
O3
0.34ppb
SO2
3.67ppb
NO2
0.21ppm
CO
AQI 67
Moderate
18.01μg/m³
PM2.5
80.10μg/m³
PM10
13.52ppb
O3
0.33ppb
SO2
3.94ppb
NO2
0.22ppm
CO
AQI 69
Moderate
18.91μg/m³
PM2.5
22.42μg/m³
PM10
18.17ppb
O3
0.50ppb
SO2
5.14ppb
NO2
0.27ppm
CO
AQI 64
Moderate
16.41μg/m³
PM2.5
43.39μg/m³
PM10
14.20ppb
O3
0.53ppb
SO2
5.39ppb
NO2
0.29ppm
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 07:00:00, 2025-12-07.
The best air quality in Duncan, Oklahoma was observed at 10:00:00 on 2025-12-06.
The air quality in Duncan, Oklahoma right now is Moderate, with an AQI of 66.
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 16.955 μg/m3.
Duncan, Oklahoma currently has a PM10 concentration of 20.996 μg/m3.
The current carbon monoxide (CO) level in Duncan, Oklahoma is 0.278 ppm.
The current sulfur dioxide (SO2) concentration in Duncan, Oklahoma is 0.553 ppb.
Duncan, Oklahoma currently has an ozone (O3) concentration of 10.659 ppm.
The current level of nitrogen dioxide (NO2) in Duncan, Oklahoma is 5.513 ppb.
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