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)
44
Good
Duncan, Oklahoma
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
7.89 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
20.59 μg/m³
0
55
155
255
425
605+
30.91 ppb
0
55
71
86
201
201+
0.66 ppb
0
36
76
186
605
1005+
4.05 ppb
0
54
101
361
1250
2050+
0.55 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Very high
Duncan, Oklahoma
Duncan, Oklahoma
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AQI 44
Good
7.63μg/m³
PM2.5
33.98μg/m³
PM10
33.45ppb
O3
0.05ppb
SO2
1.25ppb
NO2
0.14ppm
CO
AQI 44
Good
8.23μg/m³
PM2.5
35.96μg/m³
PM10
37.56ppb
O3
0.09ppb
SO2
1.20ppb
NO2
0.13ppm
CO
AQI 38
Good
7.03μg/m³
PM2.5
31.00μg/m³
PM10
33.04ppb
O3
0.05ppb
SO2
1.14ppb
NO2
0.14ppm
CO
AQI 38
Good
6.65μg/m³
PM2.5
29.87μg/m³
PM10
33.02ppb
O3
0.05ppb
SO2
1.19ppb
NO2
0.14ppm
CO
AQI 44
Good
8.44μg/m³
PM2.5
37.00μg/m³
PM10
38.17ppb
O3
0.47ppb
SO2
2.83ppb
NO2
0.14ppm
CO
AQI 49
Good
9.04μg/m³
PM2.5
40.61μg/m³
PM10
39.79ppb
O3
0.17ppb
SO2
1.62ppb
NO2
0.14ppm
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, 2026-04-23.
The best air quality in Duncan, Oklahoma was observed at 01:00:00 on 2026-04-24.
The air quality in Duncan, Oklahoma right now is Good, with an AQI of 44.
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 7.893 μg/m3.
Duncan, Oklahoma currently has a PM10 concentration of 20.585 μg/m3.
The current carbon monoxide (CO) level in Duncan, Oklahoma is 0.549 ppm.
The current sulfur dioxide (SO2) concentration in Duncan, Oklahoma is 0.656 ppb.
Duncan, Oklahoma currently has an ozone (O3) concentration of 30.905 ppm.
The current level of nitrogen dioxide (NO2) in Duncan, Oklahoma is 4.055 ppb.
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