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)
42
Good
Sierra Vista, Arizona
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.25 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
31.55 μg/m³
0
55
155
255
425
605+
44.97 ppb
0
55
71
86
201
201+
0.19 ppb
0
36
76
186
605
1005+
6.62 ppb
0
54
101
361
1250
2050+
0.21 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 34
Good
5.87μg/m³
PM2.5
25.21μg/m³
PM10
36.59ppb
O3
0.24ppb
SO2
16.93ppb
NO2
0.34ppm
CO
AQI 33
Good
5.50μg/m³
PM2.5
19.52μg/m³
PM10
28.88ppb
O3
0.27ppb
SO2
21.92ppb
NO2
0.40ppm
CO
AQI 33
Good
6.36μg/m³
PM2.5
27.41μg/m³
PM10
30.03ppb
O3
0.28ppb
SO2
18.93ppb
NO2
0.40ppm
CO
AQI 49
Good
8.53μg/m³
PM2.5
28.05μg/m³
PM10
24.65ppb
O3
0.28ppb
SO2
16.55ppb
NO2
0.40ppm
CO
AQI 49
Good
8.59μg/m³
PM2.5
38.95μg/m³
PM10
26.85ppb
O3
0.27ppb
SO2
12.82ppb
NO2
0.40ppm
CO
AQI 29
Good
4.07μg/m³
PM2.5
18.20μg/m³
PM10
30.91ppb
O3
0.28ppb
SO2
18.42ppb
NO2
0.40ppm
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 03:00:00 on 2026-06-08.
The best air quality in Sierra Vista, Arizona was recorded at 10:00:00 on 2026-06-08.
The real-time air quality index in Sierra Vista, Arizona is 42, 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 6.249 μg/m3.
The current PM10 levels in Sierra Vista, Arizona are 31.553 μg/m3.
The current carbon monoxide (CO) level in Sierra Vista, Arizona is 0.208 ppm.
The current sulfur dioxide (SO2) levels in Sierra Vista, Arizona are 0.19 ppb.
The current ozone (O3) levels at Sierra Vista, Arizona is 44.967 ppm.
The current nitrogen dioxide (NO2) levels at Sierra Vista, Arizona is 6.623 ppb.
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