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
5.16 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
18.60 μg/m³
0
55
155
255
425
605+
23.32 ppb
0
55
71
86
201
201+
0.62 ppb
0
36
76
186
605
1005+
4.77 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Tucson, Arizona
Tucson, Arizona
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AQI 38
Good
2.66μg/m³
PM2.5
11.19μg/m³
PM10
40.56ppb
O3
0.65ppb
SO2
8.71ppb
NO2
0.20ppm
CO
AQI 37
Good
2.11μg/m³
PM2.5
10.96μg/m³
PM10
40.09ppb
O3
0.65ppb
SO2
8.71ppb
NO2
0.20ppm
CO
AQI 37
Good
2.52μg/m³
PM2.5
10.22μg/m³
PM10
39.94ppb
O3
0.65ppb
SO2
8.71ppb
NO2
0.20ppm
CO
AQI 37
Good
2.57μg/m³
PM2.5
11.74μg/m³
PM10
40.32ppb
O3
0.64ppb
SO2
8.71ppb
NO2
0.20ppm
CO
AQI 36
Good
2.02μg/m³
PM2.5
9.02μg/m³
PM10
39.09ppb
O3
0.65ppb
SO2
8.71ppb
NO2
0.20ppm
CO
AQI 36
Good
2.24μg/m³
PM2.5
14.14μg/m³
PM10
39.01ppb
O3
0.63ppb
SO2
8.30ppb
NO2
0.20ppm
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 2025-07-20.
In the last 24 hours, the best air quality in Tucson, Arizona was observed at 04:00:00 on 2025-07-20.
As of now, the AQI in Tucson, Arizona is 37, indicating Good conditions.
Tucson, Arizona air has the highest levels of O3.
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 1.808 μg/m3.
The PM10 concentration in Tucson, Arizona is 10.073 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Tucson, Arizona is 0.202 ppm.
Currently, Tucson, Arizona has a sulfur dioxide (SO2) concentration of 0.649 ppb.
The current ozone (O3) level in Tucson, Arizona at the moment is 39.918 ppm.
Nitrogen dioxide (NO2) level in Tucson, Arizona at the moment is 8.707 ppb.
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