Stay updated with real-time air quality in Flagstaff, Arizona 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)
54
Moderate
Flagstaff, Arizona
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
10.90 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
47.99 μg/m³
0
55
155
255
425
605+
31.00 ppb
0
55
71
86
201
201+
0.64 ppb
0
36
76
186
605
1005+
9.24 ppb
0
54
101
361
1250
2050+
1.40 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Flagstaff, Arizona
Flagstaff, Arizona
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AQI 27
Good
4.92μg/m³
PM2.5
26.09μg/m³
PM10
20.06ppb
O3
0.47ppb
SO2
12.77ppb
NO2
1.27ppm
CO
AQI 27
Good
4.92μg/m³
PM2.5
26.09μg/m³
PM10
20.06ppb
O3
0.47ppb
SO2
12.77ppb
NO2
1.27ppm
CO
AQI 44
Good
8.35μg/m³
PM2.5
38.28μg/m³
PM10
27.07ppb
O3
0.43ppb
SO2
12.70ppb
NO2
1.26ppm
CO
AQI 27
Good
4.61μg/m³
PM2.5
25.68μg/m³
PM10
22.05ppb
O3
0.54ppb
SO2
9.56ppb
NO2
1.32ppm
CO
AQI 33
Good
4.28μg/m³
PM2.5
35.59μg/m³
PM10
27.82ppb
O3
0.50ppb
SO2
12.56ppb
NO2
1.33ppm
CO
AQI 36
Good
1.36μg/m³
PM2.5
5.29μg/m³
PM10
38.86ppb
O3
0.52ppb
SO2
9.66ppb
NO2
1.32ppm
CO
Air quality measurements for Arizona, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for Flagstaff, Arizona is updated on an hourly basis.
The worst air quality in Flagstaff, Arizona was recorded at 06:00:00 on 2025-12-06.
The best air quality in Flagstaff, Arizona was recorded at 02:00:00 on 2025-12-06.
The real-time air quality index in Flagstaff, Arizona is 54, currently categorized as Moderate.
The most common pollutant in Flagstaff, Arizona is PM2.5.
If the air quality in Flagstaff, Arizona is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Flagstaff, Arizona at present are 10.898 μg/m3.
The current PM10 levels in Flagstaff, Arizona are 47.989 μg/m3.
The current carbon monoxide (CO) level in Flagstaff, Arizona is 1.398 ppm.
The current sulfur dioxide (SO2) levels in Flagstaff, Arizona are 0.638 ppb.
The current ozone (O3) levels at Flagstaff, Arizona is 30.998 ppm.
The current nitrogen dioxide (NO2) levels at Flagstaff, Arizona is 9.244 ppb.
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