Stay updated with real-time air quality in South San Jose Hills, 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
South San Jose Hills, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
9.58 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
42.98 μg/m³
0
55
155
255
425
605+
46.62 ppb
0
55
71
86
201
201+
4.65 ppb
0
36
76
186
605
1005+
15.57 ppb
0
54
101
361
1250
2050+
0.18 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
South San Jose Hills, California
South San Jose Hills, California
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AQI 52
Moderate
9.59μg/m³
PM2.5
43.02μg/m³
PM10
46.81ppb
O3
4.68ppb
SO2
15.67ppb
NO2
0.19ppm
CO
AQI 44
Good
8.42μg/m³
PM2.5
37.22μg/m³
PM10
46.91ppb
O3
5.06ppb
SO2
16.84ppb
NO2
0.19ppm
CO
AQI 52
Moderate
9.77μg/m³
PM2.5
43.35μg/m³
PM10
45.62ppb
O3
4.41ppb
SO2
14.79ppb
NO2
0.18ppm
CO
AQI 49
Good
8.64μg/m³
PM2.5
37.94μg/m³
PM10
47.20ppb
O3
4.85ppb
SO2
16.27ppb
NO2
0.19ppm
CO
AQI 44
Good
8.38μg/m³
PM2.5
36.80μg/m³
PM10
47.47ppb
O3
5.12ppb
SO2
17.01ppb
NO2
0.19ppm
CO
AQI 49
Good
8.87μg/m³
PM2.5
38.80μg/m³
PM10
47.24ppb
O3
4.66ppb
SO2
15.70ppb
NO2
0.19ppm
CO
Air quality data and pollutant measurements for California, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for South San Jose Hills, California is updated every hour.
The worst air quality in South San Jose Hills, California in the last 24 hours was observed at 01:00:00 on 2026-04-24.
In the last 24 hrs, the best air quality in South San Jose Hills, California was observed at 03:00:00 on 2026-04-23.
The current air quality in South San Jose Hills, California is 52, categorized as Moderate based on real-time data.
The most common pollutant in South San Jose Hills, California is PM2.5.
If the air quality in South San Jose Hills, California is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at South San Jose Hills, California is 9.583 μg/m3.
The current PM10 concentration at South San Jose Hills, California is 42.981 μg/m3.
The current carbon monoxide (CO) concentration at South San Jose Hills, California is 0.185 ppm.
The current sulfur dioxide (SO2) concentration at South San Jose Hills, California is 4.648 ppb.
The current ozone (O3) concentration at South San Jose Hills, California is 46.617 ppm.
The current nitrogen dioxide (NO2) concentration at South San Jose Hills, California is 15.571 ppb.
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