Stay updated with real-time air quality in Santa Clara, 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)
52
Moderate
Santa Clara, California
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
9.93 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
41.85 μg/m³
0
55
155
255
425
605+
26.91 ppb
0
55
71
86
201
201+
0.74 ppb
0
36
76
186
605
1005+
3.54 ppb
0
54
101
361
1250
2050+
0.14 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Santa Clara, California
Santa Clara, California
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AQI 33
Good
6.13μg/m³
PM2.5
27.41μg/m³
PM10
18.96ppb
O3
0.81ppb
SO2
3.13ppb
NO2
0.10ppm
CO
AQI 17
Good
3.45μg/m³
PM2.5
14.93μg/m³
PM10
17.61ppb
O3
0.77ppb
SO2
2.79ppb
NO2
0.15ppm
CO
AQI 27
Good
4.50μg/m³
PM2.5
24.09μg/m³
PM10
17.41ppb
O3
0.80ppb
SO2
3.11ppb
NO2
0.12ppm
CO
AQI 22
Good
3.95μg/m³
PM2.5
21.43μg/m³
PM10
17.36ppb
O3
0.79ppb
SO2
3.28ppb
NO2
0.13ppm
CO
AQI 33
Good
5.71μg/m³
PM2.5
26.16μg/m³
PM10
18.67ppb
O3
0.81ppb
SO2
3.19ppb
NO2
0.11ppm
CO
AQI 22
Good
3.54μg/m³
PM2.5
21.90μg/m³
PM10
16.71ppb
O3
0.79ppb
SO2
3.06ppb
NO2
0.13ppm
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 Santa Clara, California are available every hour.
Santa Clara, California experienced its worst air quality at 08:00:00, 2025-07-29.
The best air quality in Santa Clara, California was observed at 03:00:00 on 2025-07-30.
The air quality in Santa Clara, California right now is Good, with an AQI of 27.
In Santa Clara, California, PM2.5 is the most frequently found pollutant.
When air quality in Santa Clara, California is compromised, staying indoors and wearing a mask can reduce health risks.
Santa Clara, California currently has a PM2.5 concentration of 5.083 μg/m3.
Santa Clara, California currently has a PM10 concentration of 22.623 μg/m3.
The current carbon monoxide (CO) level in Santa Clara, California is 0.177 ppm.
The current sulfur dioxide (SO2) concentration in Santa Clara, California is 0.792 ppb.
Santa Clara, California currently has an ozone (O3) concentration of 18.335 ppm.
The current level of nitrogen dioxide (NO2) in Santa Clara, California is 4.133 ppb.
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