Stay updated with real-time air quality in San Ramon, 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)
13
Good
San Ramon, California
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
2.41 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
10.15 μg/m³
0
55
155
255
425
605+
13.65 ppb
0
55
71
86
201
201+
0.57 ppb
0
36
76
186
605
1005+
6.68 ppb
0
54
101
361
1250
2050+
0.24 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
San Ramon, California
San Ramon, California
Scroll To Air Quality MapLoading...
AQI 26
Good
2.07μg/m³
PM2.5
28.20μg/m³
PM10
14.73ppb
O3
0.52ppb
SO2
4.95ppb
NO2
0.34ppm
CO
AQI 13
Good
2.22μg/m³
PM2.5
9.50μg/m³
PM10
13.61ppb
O3
0.46ppb
SO2
5.66ppb
NO2
0.29ppm
CO
AQI 13
Good
2.20μg/m³
PM2.5
9.00μg/m³
PM10
14.07ppb
O3
0.61ppb
SO2
7.50ppb
NO2
0.20ppm
CO
AQI 13
Good
1.35μg/m³
PM2.5
5.79μg/m³
PM10
13.79ppb
O3
0.30ppb
SO2
4.41ppb
NO2
0.35ppm
CO
AQI 22
Good
3.56μg/m³
PM2.5
15.33μg/m³
PM10
13.57ppb
O3
0.58ppb
SO2
6.55ppb
NO2
0.28ppm
CO
AQI 16
Good
3.45μg/m³
PM2.5
14.92μg/m³
PM10
14.00ppb
O3
0.54ppb
SO2
6.71ppb
NO2
0.29ppm
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 San Ramon, California are available every hour.
San Ramon, California experienced its worst air quality at 06:00:00, 2025-07-13.
The best air quality in San Ramon, California was observed at 02:00:00 on 2025-07-14.
The air quality in San Ramon, California right now is Good, with an AQI of 13.
In San Ramon, California, O3 is the most frequently found pollutant.
When air quality in San Ramon, California is compromised, staying indoors and wearing a mask can reduce health risks.
San Ramon, California currently has a PM2.5 concentration of 2.414 μg/m3.
San Ramon, California currently has a PM10 concentration of 10.15 μg/m3.
The current carbon monoxide (CO) level in San Ramon, California is 0.244 ppm.
The current sulfur dioxide (SO2) concentration in San Ramon, California is 0.568 ppb.
San Ramon, California currently has an ozone (O3) concentration of 13.651 ppm.
The current level of nitrogen dioxide (NO2) in San Ramon, California is 6.685 ppb.
All Rights Reserved © Ambee Inc. 2025