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  4. Alameda County

Alameda County

California

2026-05-23 20:00
AQI (US)
Good
Pollutants|Pollens
O3
μg/m³
77.9
PM10
μg/m³
27
PM2.5
μg/m³
4.3
CO
μg/m³
437.5
NO2
μg/m³
8.3
SO2
μg/m³
0.9
Weather
  • ℃
  • ℉
25℃
41%
19 kph
7 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • CO
  • NO2
  • SO2
Places included
Alameda
AQI 23
Albany
AQI 23
Berkeley
AQI 33
Castro Valley
AQI 23
Dublin
AQI 28
Emeryville
AQI 23
Fairview
AQI 23
Fremont
AQI 28
Hayward
AQI 35
Livermore
AQI 32
Newark
AQI 23
Oakland
AQI 37
Piedmont
AQI 23
Pleasanton
AQI 28
San Leandro
AQI 23
San Lorenzo
AQI 23
Sunol
AQI 28
Union City
AQI 28
Data Sources
http://www.airnow.gov/

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Cities Nearby

Livermore
AQI 32
Sunol
AQI 28
Pleasanton
AQI 28
Dublin
AQI 28
Fremont
AQI 28
Milpitas
AQI 56
Mountain House
AQI 34
East Foothills
AQI 56
Alum Rock
AQI 56
Union City
AQI 28
Blackhawk
AQI 28