Stay updated with real-time air quality in Sierra Vista, 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)
15
Good
Sierra Vista, Arizona
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
1.71 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
11.41 μg/m³
0
55
155
255
425
605+
16.49 ppb
0
55
71
86
201
201+
1.13 ppb
0
36
76
186
605
1005+
4.46 ppb
0
54
101
361
1250
2050+
0.26 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Sierra Vista, Arizona
Sierra Vista, Arizona
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AQI 16
Good
2.27μg/m³
PM2.5
17.40μg/m³
PM10
9.25ppb
O3
0.58ppb
SO2
4.96ppb
NO2
0.62ppm
CO
AQI 29
Good
4.17μg/m³
PM2.5
30.51μg/m³
PM10
12.36ppb
O3
0.55ppb
SO2
20.08ppb
NO2
0.75ppm
CO
AQI 161
Unhealthy
70.19μg/m³
PM2.5
169.96μg/m³
PM10
5.46ppb
O3
0.53ppb
SO2
4.67ppb
NO2
0.75ppm
CO
AQI 44
Good
8.00μg/m³
PM2.5
31.04μg/m³
PM10
5.16ppb
O3
0.53ppb
SO2
4.64ppb
NO2
0.75ppm
CO
AQI 22
Good
3.80μg/m³
PM2.5
16.99μg/m³
PM10
9.97ppb
O3
0.50ppb
SO2
5.00ppb
NO2
0.74ppm
CO
AQI 16
Good
2.71μg/m³
PM2.5
11.73μg/m³
PM10
15.75ppb
O3
0.54ppb
SO2
12.63ppb
NO2
0.75ppm
CO
Air quality measurements for Arizona, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for Sierra Vista, Arizona is updated on an hourly basis.
The worst air quality in Sierra Vista, Arizona was recorded at 10:00:00 on 2025-12-06.
The best air quality in Sierra Vista, Arizona was recorded at 08:00:00 on 2025-12-07.
The real-time air quality index in Sierra Vista, Arizona is 18, currently categorized as Good.
The most common pollutant in Sierra Vista, Arizona is O3.
If the air quality in Sierra Vista, Arizona is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Sierra Vista, Arizona at present are 1.264 μg/m3.
The current PM10 levels in Sierra Vista, Arizona are 8.846 μg/m3.
The current carbon monoxide (CO) level in Sierra Vista, Arizona is 0.308 ppm.
The current sulfur dioxide (SO2) levels in Sierra Vista, Arizona are 0.81 ppb.
The current ozone (O3) levels at Sierra Vista, Arizona is 18.733 ppm.
The current nitrogen dioxide (NO2) levels at Sierra Vista, Arizona is 5.202 ppb.
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