Stay updated with real-time air quality in Sunnyvale, California 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)
38
Good
Sunnyvale, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
7.14 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
22.66 μg/m³
0
55
155
255
425
605+
24.74 ppb
0
55
71
86
201
201+
0.46 ppb
0
36
76
186
605
1005+
3.57 ppb
0
54
101
361
1250
2050+
0.26 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Sunnyvale, California
Sunnyvale, California
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AQI 38
Good
7.14μg/m³
PM2.5
22.66μg/m³
PM10
24.74ppb
O3
0.46ppb
SO2
3.57ppb
NO2
0.26ppm
CO
AQI 38
Good
7.33μg/m³
PM2.5
27.26μg/m³
PM10
21.86ppb
O3
0.48ppb
SO2
3.59ppb
NO2
0.26ppm
CO
AQI 33
Good
6.38μg/m³
PM2.5
24.80μg/m³
PM10
21.36ppb
O3
0.46ppb
SO2
2.99ppb
NO2
0.24ppm
CO
AQI 38
Good
7.09μg/m³
PM2.5
29.43μg/m³
PM10
23.25ppb
O3
0.48ppb
SO2
4.24ppb
NO2
0.25ppm
CO
AQI 44
Good
7.51μg/m³
PM2.5
24.65μg/m³
PM10
21.06ppb
O3
0.48ppb
SO2
3.43ppb
NO2
0.26ppm
CO
AQI 38
Good
7.30μg/m³
PM2.5
26.78μg/m³
PM10
22.20ppb
O3
0.48ppb
SO2
3.90ppb
NO2
0.26ppm
CO
The air quality data for California, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for Sunnyvale, California are available every hour.
Sunnyvale, California experienced its worst air quality at 02:00:00, 2026-09-21.
The best air quality in Sunnyvale, California was observed at 05:00:00 on 2026-09-20.
The air quality in Sunnyvale, California right now is Good, with an AQI of 38.
In Sunnyvale, California, PM2.5 is the most frequently found pollutant.
When air quality in Sunnyvale, California is compromised, staying indoors and wearing a mask can reduce health risks.
Sunnyvale, California currently has a PM2.5 concentration of 7.14 μg/m3.
Sunnyvale, California currently has a PM10 concentration of 22.665 μg/m3.
The current carbon monoxide (CO) level in Sunnyvale, California is 0.263 ppm.
The current sulfur dioxide (SO2) concentration in Sunnyvale, California is 0.461 ppb.
Sunnyvale, California currently has an ozone (O3) concentration of 24.741 ppm.
The current level of nitrogen dioxide (NO2) in Sunnyvale, California is 3.566 ppb.
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