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  4. Alameda County

Alameda County

California

2026-05-23 16:00
AQI (US)
Good
Pollutants|Pollens
PM2.5
μg/m³
5.4
O3
μg/m³
63.8
PM10
μg/m³
21
NO2
μg/m³
10.7
CO
μg/m³
437.5
SO2
μg/m³
0.3
Weather
  • ℃
  • ℉
17℃
63%
10 kph
4 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • O3
  • PM10
  • NO2
  • CO
  • SO2
Places included
Alameda
AQI 6
Albany
AQI 6
Berkeley
AQI 25
Castro Valley
AQI 34
Dublin
AQI 45
Emeryville
AQI 6
Fairview
AQI 34
Fremont
AQI 45
Hayward
AQI 34
Livermore
AQI 45
Newark
AQI 23
Oakland
AQI 34
Piedmont
AQI 34
Pleasanton
AQI 45
San Leandro
AQI 34
San Lorenzo
AQI 34
Sunol
AQI 45
Union City
AQI 45
Data Sources
http://www.airnow.gov/

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Cities Nearby

Livermore
AQI 45
Sunol
AQI 45
Pleasanton
AQI 45
Dublin
AQI 45
Fremont
AQI 45
Milpitas
AQI 34
Mountain House
AQI 28
East Foothills
AQI 34
Alum Rock
AQI 34
Union City
AQI 45
Blackhawk
AQI 45