Stay updated with real-time air quality in Tucson, 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)
44
Good
Tucson, Arizona
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
7.67 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
34.02 μg/m³
0
55
155
255
425
605+
28.27 ppb
0
55
71
86
201
201+
2.41 ppb
0
36
76
186
605
1005+
8.96 ppb
0
54
101
361
1250
2050+
0.22 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Tucson, Arizona
Tucson, Arizona
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AQI 33
Good
6.36μg/m³
PM2.5
28.28μg/m³
PM10
26.68ppb
O3
2.41ppb
SO2
8.96ppb
NO2
0.22ppm
CO
AQI 38
Good
7.39μg/m³
PM2.5
32.47μg/m³
PM10
28.47ppb
O3
2.41ppb
SO2
8.97ppb
NO2
0.22ppm
CO
AQI 38
Good
7.24μg/m³
PM2.5
33.38μg/m³
PM10
27.89ppb
O3
2.41ppb
SO2
8.99ppb
NO2
0.22ppm
CO
AQI 38
Good
6.80μg/m³
PM2.5
30.80μg/m³
PM10
28.87ppb
O3
2.41ppb
SO2
9.05ppb
NO2
0.22ppm
CO
AQI 38
Good
6.92μg/m³
PM2.5
33.68μg/m³
PM10
28.92ppb
O3
2.42ppb
SO2
9.07ppb
NO2
0.22ppm
CO
AQI 56
Moderate
12.16μg/m³
PM2.5
53.34μg/m³
PM10
34.53ppb
O3
2.40ppb
SO2
9.33ppb
NO2
0.22ppm
CO
Air quality and pollutant data for Arizona, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.
Source: Ambee Data Sources
The air quality information for Tucson, Arizona is updated every hour for accuracy.
In the past 24 hours, the air quality in Tucson, Arizona was at its worst at 04:00:00 on 2025-10-21.
In the last 24 hours, the best air quality in Tucson, Arizona was observed at 02:00:00 on 2025-10-21.
As of now, the AQI in Tucson, Arizona is 44, indicating Good conditions.
Tucson, Arizona air has the highest levels of PM2.5.
Poor air quality in Tucson, Arizona means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Tucson, Arizona are currently 7.672 μg/m3.
The PM10 concentration in Tucson, Arizona is 34.019 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Tucson, Arizona is 0.217 ppm.
Currently, Tucson, Arizona has a sulfur dioxide (SO2) concentration of 2.411 ppb.
The current ozone (O3) level in Tucson, Arizona at the moment is 28.275 ppm.
Nitrogen dioxide (NO2) level in Tucson, Arizona at the moment is 8.962 ppb.
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