Stay updated with real-time air quality in Fountain Hills, 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
Fountain Hills, Arizona
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
10.36 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
37.19 μg/m³
0
55
155
255
425
605+
24.97 ppb
0
55
71
86
201
201+
0.52 ppb
0
36
76
186
605
1005+
30.40 ppb
0
54
101
361
1250
2050+
0.95 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Fountain Hills, Arizona
Fountain Hills, Arizona
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AQI 54
Moderate
11.07μg/m³
PM2.5
40.99μg/m³
PM10
14.31ppb
O3
1.08ppb
SO2
30.88ppb
NO2
1.11ppm
CO
AQI 49
Good
8.95μg/m³
PM2.5
39.29μg/m³
PM10
10.19ppb
O3
1.13ppb
SO2
31.53ppb
NO2
1.06ppm
CO
AQI 54
Moderate
10.62μg/m³
PM2.5
28.08μg/m³
PM10
22.28ppb
O3
0.98ppb
SO2
31.98ppb
NO2
0.92ppm
CO
AQI 56
Moderate
12.14μg/m³
PM2.5
45.44μg/m³
PM10
32.30ppb
O3
0.58ppb
SO2
30.64ppb
NO2
0.97ppm
CO
AQI 60
Moderate
13.69μg/m³
PM2.5
33.12μg/m³
PM10
13.30ppb
O3
1.02ppb
SO2
32.86ppb
NO2
0.94ppm
CO
AQI 44
Good
8.49μg/m³
PM2.5
30.77μg/m³
PM10
24.48ppb
O3
0.82ppb
SO2
30.92ppb
NO2
0.89ppm
CO
Air quality data and pollutant measurements for Arizona, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for Fountain Hills, Arizona is updated every hour.
The worst air quality in Fountain Hills, Arizona in the last 24 hours was observed at 04:00:00 on 2025-12-07.
In the last 24 hrs, the best air quality in Fountain Hills, Arizona was observed at 06:00:00 on 2025-12-06.
The current air quality in Fountain Hills, Arizona is 52, categorized as Moderate based on real-time data.
The most common pollutant in Fountain Hills, Arizona is PM2.5.
If the air quality in Fountain Hills, Arizona is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Fountain Hills, Arizona is 10.359 μg/m3.
The current PM10 concentration at Fountain Hills, Arizona is 37.193 μg/m3.
The current carbon monoxide (CO) concentration at Fountain Hills, Arizona is 0.952 ppm.
The current sulfur dioxide (SO2) concentration at Fountain Hills, Arizona is 0.515 ppb.
The current ozone (O3) concentration at Fountain Hills, Arizona is 24.971 ppm.
The current nitrogen dioxide (NO2) concentration at Fountain Hills, Arizona is 30.403 ppb.
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