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)
44
Good
Fountain Hills, Arizona
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
6.00 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
33.14 μg/m³
0
55
155
255
425
605+
47.99 ppb
0
55
71
86
201
201+
0.35 ppb
0
36
76
186
605
1005+
5.33 ppb
0
54
101
361
1250
2050+
0.15 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 49
Good
8.72μg/m³
PM2.5
36.72μg/m³
PM10
51.83ppb
O3
0.36ppb
SO2
4.46ppb
NO2
0.13ppm
CO
AQI 60
Moderate
13.95μg/m³
PM2.5
63.40μg/m³
PM10
52.99ppb
O3
0.37ppb
SO2
4.49ppb
NO2
0.13ppm
CO
AQI 50
Good
2.10μg/m³
PM2.5
8.94μg/m³
PM10
54.20ppb
O3
0.40ppb
SO2
3.92ppb
NO2
0.18ppm
CO
AQI 48
Good
4.66μg/m³
PM2.5
18.91μg/m³
PM10
52.14ppb
O3
0.47ppb
SO2
4.15ppb
NO2
0.15ppm
CO
AQI 51
Moderate
5.38μg/m³
PM2.5
15.19μg/m³
PM10
54.70ppb
O3
0.38ppb
SO2
3.63ppb
NO2
0.14ppm
CO
AQI 49
Good
4.87μg/m³
PM2.5
20.76μg/m³
PM10
52.59ppb
O3
0.42ppb
SO2
4.01ppb
NO2
0.17ppm
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 2025-07-16.
In the last 24 hrs, the best air quality in Fountain Hills, Arizona was observed at 03:00:00 on 2025-07-16.
The current air quality in Fountain Hills, Arizona is 48, categorized as Good based on real-time data.
The most common pollutant in Fountain Hills, Arizona is O3.
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 6.607 μg/m3.
The current PM10 concentration at Fountain Hills, Arizona is 24.702 μg/m3.
The current carbon monoxide (CO) concentration at Fountain Hills, Arizona is 0.146 ppm.
The current sulfur dioxide (SO2) concentration at Fountain Hills, Arizona is 0.421 ppb.
The current ozone (O3) concentration at Fountain Hills, Arizona is 51.993 ppm.
The current nitrogen dioxide (NO2) concentration at Fountain Hills, Arizona is 4.494 ppb.
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