Stay updated with real-time air quality in Alamo, 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)
33
Good
Alamo, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.74 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
25.48 μg/m³
0
55
155
255
425
605+
20.67 ppb
0
55
71
86
201
201+
0.36 ppb
0
36
76
186
605
1005+
1.53 ppb
0
54
101
361
1250
2050+
0.28 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Alamo, California
Alamo, California
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AQI 33
Good
6.15μg/m³
PM2.5
26.13μg/m³
PM10
20.01ppb
O3
0.40ppb
SO2
2.84ppb
NO2
0.27ppm
CO
AQI 33
Good
5.80μg/m³
PM2.5
26.66μg/m³
PM10
20.80ppb
O3
0.38ppb
SO2
1.32ppb
NO2
0.28ppm
CO
AQI 33
Good
5.97μg/m³
PM2.5
26.96μg/m³
PM10
20.21ppb
O3
0.33ppb
SO2
1.66ppb
NO2
0.28ppm
CO
AQI 27
Good
5.33μg/m³
PM2.5
24.59μg/m³
PM10
20.05ppb
O3
0.31ppb
SO2
1.80ppb
NO2
0.28ppm
CO
AQI 33
Good
5.92μg/m³
PM2.5
27.07μg/m³
PM10
20.92ppb
O3
0.38ppb
SO2
1.25ppb
NO2
0.28ppm
CO
AQI 33
Good
6.15μg/m³
PM2.5
26.24μg/m³
PM10
20.52ppb
O3
0.42ppb
SO2
2.61ppb
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 Alamo, California are available every hour.
Alamo, California experienced its worst air quality at 08:00:00, 2026-07-28.
The best air quality in Alamo, California was observed at 04:00:00 on 2026-07-27.
The air quality in Alamo, California right now is Good, with an AQI of 33.
In Alamo, California, PM2.5 is the most frequently found pollutant.
When air quality in Alamo, California is compromised, staying indoors and wearing a mask can reduce health risks.
Alamo, California currently has a PM2.5 concentration of 5.515 μg/m3.
Alamo, California currently has a PM10 concentration of 25.814 μg/m3.
The current carbon monoxide (CO) level in Alamo, California is 0.276 ppm.
The current sulfur dioxide (SO2) concentration in Alamo, California is 0.359 ppb.
Alamo, California currently has an ozone (O3) concentration of 20.469 ppm.
The current level of nitrogen dioxide (NO2) in Alamo, California is 1.564 ppb.
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