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
7.51 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
27.94 μg/m³
0
55
155
255
425
605+
28.76 ppb
0
55
71
86
201
201+
0.80 ppb
0
36
76
186
605
1005+
7.39 ppb
0
54
101
361
1250
2050+
0.40 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Duncan, Oklahoma
Duncan, Oklahoma
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AQI 38
Good
7.32μg/m³
PM2.5
16.18μg/m³
PM10
36.95ppb
O3
0.80ppb
SO2
7.41ppb
NO2
0.40ppm
CO
AQI 49
Good
8.86μg/m³
PM2.5
30.68μg/m³
PM10
31.74ppb
O3
0.83ppb
SO2
7.24ppb
NO2
0.41ppm
CO
AQI 49
Good
9.00μg/m³
PM2.5
39.88μg/m³
PM10
29.95ppb
O3
0.41ppb
SO2
2.78ppb
NO2
0.15ppm
CO
AQI 49
Good
8.83μg/m³
PM2.5
38.81μg/m³
PM10
30.22ppb
O3
0.41ppb
SO2
2.64ppb
NO2
0.14ppm
CO
AQI 49
Good
8.61μg/m³
PM2.5
36.52μg/m³
PM10
26.57ppb
O3
0.76ppb
SO2
7.93ppb
NO2
0.39ppm
CO
AQI 54
Moderate
10.74μg/m³
PM2.5
39.30μg/m³
PM10
33.64ppb
O3
0.86ppb
SO2
6.98ppb
NO2
0.41ppm
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, 2026-09-07.
The best air quality in Duncan, Oklahoma was observed at 05:00:00 on 2026-09-07.
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 7.515 μg/m3.
Duncan, Oklahoma currently has a PM10 concentration of 27.943 μg/m3.
The current carbon monoxide (CO) level in Duncan, Oklahoma is 0.4 ppm.
The current sulfur dioxide (SO2) concentration in Duncan, Oklahoma is 0.796 ppb.
Duncan, Oklahoma currently has an ozone (O3) concentration of 28.764 ppm.
The current level of nitrogen dioxide (NO2) in Duncan, Oklahoma is 7.387 ppb.
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