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)
27
Good
Tucson, Arizona
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.98 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
22.63 μg/m³
0
55
155
255
425
605+
20.01 ppb
0
55
71
86
201
201+
1.05 ppb
0
36
76
186
605
1005+
9.35 ppb
0
54
101
361
1250
2050+
0.24 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Tucson, Arizona
Tucson, Arizona
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AQI 27
Good
5.27μg/m³
PM2.5
23.84μg/m³
PM10
18.82ppb
O3
1.05ppb
SO2
9.35ppb
NO2
0.24ppm
CO
AQI 27
Good
4.91μg/m³
PM2.5
22.89μg/m³
PM10
20.33ppb
O3
1.05ppb
SO2
9.35ppb
NO2
0.24ppm
CO
AQI 27
Good
4.89μg/m³
PM2.5
23.90μg/m³
PM10
19.91ppb
O3
1.05ppb
SO2
9.49ppb
NO2
0.24ppm
CO
AQI 22
Good
4.46μg/m³
PM2.5
20.67μg/m³
PM10
19.22ppb
O3
1.05ppb
SO2
9.44ppb
NO2
0.24ppm
CO
AQI 27
Good
4.80μg/m³
PM2.5
23.81μg/m³
PM10
20.16ppb
O3
1.05ppb
SO2
10.19ppb
NO2
0.24ppm
CO
AQI 22
Good
4.06μg/m³
PM2.5
14.31μg/m³
PM10
21.70ppb
O3
1.05ppb
SO2
9.76ppb
NO2
0.24ppm
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 03:00:00 on 2025-12-13.
In the last 24 hours, the best air quality in Tucson, Arizona was observed at 07:00:00 on 2025-12-13.
As of now, the AQI in Tucson, Arizona is 27, 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 4.981 μg/m3.
The PM10 concentration in Tucson, Arizona is 22.629 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Tucson, Arizona is 0.24 ppm.
Currently, Tucson, Arizona has a sulfur dioxide (SO2) concentration of 1.052 ppb.
The current ozone (O3) level in Tucson, Arizona at the moment is 20.011 ppm.
Nitrogen dioxide (NO2) level in Tucson, Arizona at the moment is 9.347 ppb.
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