Stay updated with real-time air quality in Catalina Foothills, 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)
52
Moderate
Catalina Foothills, Arizona
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
9.95 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
40.42 μg/m³
0
55
155
255
425
605+
26.24 ppb
0
55
71
86
201
201+
0.27 ppb
0
36
76
186
605
1005+
18.61 ppb
0
54
101
361
1250
2050+
0.40 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Catalina Foothills, Arizona
Catalina Foothills, Arizona
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AQI 52
Moderate
10.26μg/m³
PM2.5
40.70μg/m³
PM10
27.77ppb
O3
0.50ppb
SO2
21.18ppb
NO2
0.40ppm
CO
AQI 52
Moderate
9.66μg/m³
PM2.5
42.22μg/m³
PM10
28.36ppb
O3
0.50ppb
SO2
21.07ppb
NO2
0.40ppm
CO
AQI 52
Moderate
10.49μg/m³
PM2.5
46.24μg/m³
PM10
27.61ppb
O3
0.50ppb
SO2
21.06ppb
NO2
0.40ppm
CO
AQI 52
Moderate
9.62μg/m³
PM2.5
39.99μg/m³
PM10
27.50ppb
O3
0.50ppb
SO2
21.14ppb
NO2
0.40ppm
CO
AQI 44
Good
7.58μg/m³
PM2.5
25.38μg/m³
PM10
31.78ppb
O3
0.50ppb
SO2
21.42ppb
NO2
0.40ppm
CO
AQI 49
Good
9.42μg/m³
PM2.5
40.25μg/m³
PM10
28.84ppb
O3
0.49ppb
SO2
21.31ppb
NO2
0.40ppm
CO
The air quality data for Arizona, 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 Catalina Foothills, Arizona are available every hour.
Catalina Foothills, Arizona experienced its worst air quality at 12:00:00, 2026-06-08.
The best air quality in Catalina Foothills, Arizona was observed at 01:00:00 on 2026-06-07.
The air quality in Catalina Foothills, Arizona right now is Moderate, with an AQI of 52.
In Catalina Foothills, Arizona, PM2.5 is the most frequently found pollutant.
When air quality in Catalina Foothills, Arizona is compromised, staying indoors and wearing a mask can reduce health risks.
Catalina Foothills, Arizona currently has a PM2.5 concentration of 9.945 μg/m3.
Catalina Foothills, Arizona currently has a PM10 concentration of 40.42 μg/m3.
The current carbon monoxide (CO) level in Catalina Foothills, Arizona is 0.4 ppm.
The current sulfur dioxide (SO2) concentration in Catalina Foothills, Arizona is 0.27 ppb.
Catalina Foothills, Arizona currently has an ozone (O3) concentration of 26.239 ppm.
The current level of nitrogen dioxide (NO2) in Catalina Foothills, Arizona is 18.61 ppb.
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