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  4. Alameda County

Alameda County

California

2026-05-23 22:00
AQI (US)
Good
Pollutants|Pollens
O3
μg/m³
77.9
PM10
μg/m³
29
PM2.5
μg/m³
4.3
CO
μg/m³
437.5
NO2
μg/m³
8.5
SO2
μg/m³
0.3
Weather
  • ℃
  • ℉
26℃
44%
28 kph
5 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • CO
  • NO2
  • SO2
Places included
Alameda
AQI 12
Albany
AQI 12
Berkeley
AQI 31
Castro Valley
AQI 34
Dublin
AQI 23
Emeryville
AQI 12
Fairview
AQI 34
Fremont
AQI 23
Hayward
AQI 37
Livermore
AQI 32
Newark
AQI 23
Oakland
AQI 37
Piedmont
AQI 34
Pleasanton
AQI 23
San Leandro
AQI 34
San Lorenzo
AQI 34
Sunol
AQI 23
Union City
AQI 23
Data Sources
http://www.airnow.gov/

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Cities Nearby

Livermore
AQI 32
Sunol
AQI 23
Pleasanton
AQI 23
Dublin
AQI 23
Fremont
AQI 23
Milpitas
AQI 77
Mountain House
AQI 34
East Foothills
AQI 77
Alum Rock
AQI 77
Union City
AQI 23
Blackhawk
AQI 23