Stay updated with real-time air quality in Alameda, 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)
38
Good
Alameda, California
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
7.14 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
31.65 μg/m³
0
55
155
255
425
605+
33.77 ppb
0
55
71
86
201
201+
0.45 ppb
0
36
76
186
605
1005+
13.71 ppb
0
54
101
361
1250
2050+
0.22 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Alameda, California
Alameda, California
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AQI 52
Moderate
10.11μg/m³
PM2.5
44.62μg/m³
PM10
33.79ppb
O3
0.42ppb
SO2
7.25ppb
NO2
0.12ppm
CO
AQI 52
Moderate
9.75μg/m³
PM2.5
43.22μg/m³
PM10
31.16ppb
O3
0.41ppb
SO2
6.58ppb
NO2
0.44ppm
CO
AQI 52
Moderate
9.51μg/m³
PM2.5
42.09μg/m³
PM10
32.92ppb
O3
0.41ppb
SO2
6.30ppb
NO2
0.23ppm
CO
AQI 52
Moderate
9.81μg/m³
PM2.5
43.60μg/m³
PM10
30.11ppb
O3
0.41ppb
SO2
6.43ppb
NO2
0.57ppm
CO
AQI 52
Moderate
9.79μg/m³
PM2.5
43.54μg/m³
PM10
29.90ppb
O3
0.40ppb
SO2
6.29ppb
NO2
0.59ppm
CO
AQI 38
Good
7.39μg/m³
PM2.5
32.84μg/m³
PM10
33.85ppb
O3
0.41ppb
SO2
2.99ppb
NO2
0.21ppm
CO
Air quality and pollutant data for California, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.
Source: Ambee Data Sources
The air quality information for Alameda, California is updated every hour for accuracy.
In the past 24 hours, the air quality in Alameda, California was at its worst at 04:00:00 on 2025-10-22.
In the last 24 hours, the best air quality in Alameda, California was observed at 01:00:00 on 2025-10-22.
As of now, the AQI in Alameda, California is 52, indicating Moderate conditions.
Alameda, California air has the highest levels of PM2.5.
Poor air quality in Alameda, California means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Alameda, California are currently 9.9 μg/m3.
The PM10 concentration in Alameda, California is 43.728 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Alameda, California is 0.135 ppm.
Currently, Alameda, California has a sulfur dioxide (SO2) concentration of 0.418 ppb.
The current ozone (O3) level in Alameda, California at the moment is 33.698 ppm.
Nitrogen dioxide (NO2) level in Alameda, California at the moment is 6.939 ppb.
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