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  4. Alameda County

Alameda County

California

2026-05-25 02:00
AQI (US)
Good
Pollutants|Pollens
O3
μg/m³
68.3
PM2.5
μg/m³
4.7
PM10
μg/m³
17
CO
μg/m³
395.8
NO2
μg/m³
4.7
SO2
μg/m³
0.3
Weather
  • ℃
  • ℉
16℃
69%
28 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • O3
  • PM2.5
  • PM10
  • CO
  • NO2
  • SO2
Places included
Alameda
AQI 17
Albany
AQI 17
Berkeley
AQI 27
Castro Valley
AQI 28
Dublin
AQI 34
Emeryville
AQI 17
Fairview
AQI 28
Fremont
AQI 34
Hayward
AQI 34
Livermore
AQI 34
Newark
AQI 6
Oakland
AQI 31
Piedmont
AQI 28
Pleasanton
AQI 34
San Leandro
AQI 28
San Lorenzo
AQI 28
Sunol
AQI 34
Union City
AQI 34
Data Sources
http://www.airnow.gov/

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Cities Nearby

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