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  4. Alameda County

Alameda County

California

2026-05-27 00:00
AQI (US)
Good
Pollutants|Pollens
O3
μg/m³
63.9
PM2.5
μg/m³
4.6
PM10
μg/m³
8
CO
μg/m³
281.2
NO2
μg/m³
2.4
SO2
μg/m³
0.3
Weather
  • ℃
  • ℉
17℃
55%
20 kph
2 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • O3
  • PM2.5
  • PM10
  • CO
  • NO2
  • SO2
Places included
Alameda
AQI 39
Albany
AQI 39
Berkeley
AQI 39
Castro Valley
AQI 17
Dublin
AQI 23
Emeryville
AQI 39
Fairview
AQI 17
Fremont
AQI 23
Hayward
AQI 28
Livermore
AQI 28
Newark
AQI 23
Oakland
AQI 31
Piedmont
AQI 39
Pleasanton
AQI 23
San Leandro
AQI 17
San Lorenzo
AQI 17
Sunol
AQI 23
Union City
AQI 23
Data Sources
http://www.airnow.gov/

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Cities Nearby

Livermore
AQI 28
Sunol
AQI 23
Pleasanton
AQI 23
Dublin
AQI 23
Fremont
AQI 23
Milpitas
AQI 34
Mountain House
AQI 39
East Foothills
AQI 34
Alum Rock
AQI 34
Union City
AQI 23
Blackhawk
AQI 23