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)
42
Good
Alamo, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.34 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
13.91 μg/m³
0
55
155
255
425
605+
44.53 ppb
0
55
71
86
201
201+
0.61 ppb
0
36
76
186
605
1005+
2.15 ppb
0
54
101
361
1250
2050+
0.26 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Alamo, California
Alamo, California
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AQI 36
Good
4.38μg/m³
PM2.5
14.46μg/m³
PM10
39.06ppb
O3
0.64ppb
SO2
3.41ppb
NO2
0.31ppm
CO
AQI 44
Good
3.12μg/m³
PM2.5
12.68μg/m³
PM10
47.67ppb
O3
0.64ppb
SO2
1.58ppb
NO2
0.23ppm
CO
AQI 38
Good
3.35μg/m³
PM2.5
14.12μg/m³
PM10
41.24ppb
O3
0.56ppb
SO2
2.94ppb
NO2
0.31ppm
CO
AQI 34
Good
3.30μg/m³
PM2.5
14.11μg/m³
PM10
37.03ppb
O3
0.48ppb
SO2
3.96ppb
NO2
0.35ppm
CO
AQI 45
Good
3.18μg/m³
PM2.5
12.87μg/m³
PM10
49.05ppb
O3
0.65ppb
SO2
1.32ppb
NO2
0.21ppm
CO
AQI 38
Good
4.37μg/m³
PM2.5
19.92μg/m³
PM10
41.06ppb
O3
0.69ppb
SO2
3.35ppb
NO2
0.31ppm
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, 2026-06-12.
The best air quality in Alamo, California was observed at 12:00:00 on 2026-06-12.
The air quality in Alamo, California right now is Good, with an AQI of 42.
In Alamo, California, O3 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 3.34 μg/m3.
Alamo, California currently has a PM10 concentration of 13.91 μg/m3.
The current carbon monoxide (CO) level in Alamo, California is 0.261 ppm.
The current sulfur dioxide (SO2) concentration in Alamo, California is 0.613 ppb.
Alamo, California currently has an ozone (O3) concentration of 44.528 ppm.
The current level of nitrogen dioxide (NO2) in Alamo, California is 2.149 ppb.
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