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)
44
Good
Sunnyvale, California
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
8.18 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
29.64 μg/m³
0
55
155
255
425
605+
35.47 ppb
0
55
71
86
201
201+
1.36 ppb
0
36
76
186
605
1005+
4.84 ppb
0
54
101
361
1250
2050+
0.28 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Sunnyvale, California
Sunnyvale, California
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AQI 27
Good
4.97μg/m³
PM2.5
19.45μg/m³
PM10
28.27ppb
O3
1.20ppb
SO2
8.15ppb
NO2
0.29ppm
CO
AQI 33
Good
6.29μg/m³
PM2.5
29.72μg/m³
PM10
26.05ppb
O3
1.20ppb
SO2
8.77ppb
NO2
0.31ppm
CO
AQI 38
Good
6.85μg/m³
PM2.5
30.97μg/m³
PM10
28.26ppb
O3
1.20ppb
SO2
7.93ppb
NO2
0.29ppm
CO
AQI 38
Good
6.91μg/m³
PM2.5
31.19μg/m³
PM10
24.30ppb
O3
1.18ppb
SO2
8.76ppb
NO2
0.32ppm
CO
AQI 33
Good
6.04μg/m³
PM2.5
29.85μg/m³
PM10
26.87ppb
O3
1.20ppb
SO2
8.99ppb
NO2
0.31ppm
CO
AQI 38
Good
6.50μg/m³
PM2.5
30.82μg/m³
PM10
25.33ppb
O3
1.19ppb
SO2
8.96ppb
NO2
0.32ppm
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 04:00:00, 2025-10-22.
The best air quality in Sunnyvale, California was observed at 06:00:00 on 2025-10-22.
The air quality in Sunnyvale, California right now is Good, with an AQI of 33.
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 6.348 μg/m3.
Sunnyvale, California currently has a PM10 concentration of 26.576 μg/m3.
The current carbon monoxide (CO) level in Sunnyvale, California is 0.275 ppm.
The current sulfur dioxide (SO2) concentration in Sunnyvale, California is 0.616 ppb.
Sunnyvale, California currently has an ozone (O3) concentration of 31.572 ppm.
The current level of nitrogen dioxide (NO2) in Sunnyvale, California is 7.171 ppb.
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