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

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.81 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
21.20 μg/m³
0
55
155
255
425
605+
28.01 ppb
0
55
71
86
201
201+
0.30 ppb
0
36
76
186
605
1005+
13.17 ppb
0
54
101
361
1250
2050+
0.30 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 22
Good
3.34μg/m³
PM2.5
13.06μg/m³
PM10
23.89ppb
O3
0.52ppb
SO2
15.98ppb
NO2
0.29ppm
CO
AQI 21
Good
2.63μg/m³
PM2.5
11.98μg/m³
PM10
23.27ppb
O3
0.56ppb
SO2
13.81ppb
NO2
0.30ppm
CO
AQI 24
Good
2.95μg/m³
PM2.5
9.16μg/m³
PM10
26.15ppb
O3
0.41ppb
SO2
16.14ppb
NO2
0.24ppm
CO
AQI 30
Good
4.54μg/m³
PM2.5
22.00μg/m³
PM10
31.51ppb
O3
0.25ppb
SO2
10.14ppb
NO2
0.30ppm
CO
AQI 22
Good
1.51μg/m³
PM2.5
7.38μg/m³
PM10
24.13ppb
O3
0.45ppb
SO2
16.97ppb
NO2
0.30ppm
CO
AQI 25
Good
3.36μg/m³
PM2.5
13.68μg/m³
PM10
26.53ppb
O3
0.34ppb
SO2
14.84ppb
NO2
0.29ppm
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 09:00:00 on 2025-12-13.
In the last 24 hrs, the best air quality in Fountain Hills, Arizona was observed at 08:00:00 on 2025-12-13.
The current air quality in Fountain Hills, Arizona is 27, categorized as Good 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 4.81 μg/m3.
The current PM10 concentration at Fountain Hills, Arizona is 21.195 μg/m3.
The current carbon monoxide (CO) concentration at Fountain Hills, Arizona is 0.298 ppm.
The current sulfur dioxide (SO2) concentration at Fountain Hills, Arizona is 0.303 ppb.
The current ozone (O3) concentration at Fountain Hills, Arizona is 28.008 ppm.
The current nitrogen dioxide (NO2) concentration at Fountain Hills, Arizona is 13.17 ppb.
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