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  4. Alameda County

Alameda County

California

2026-05-22 17:00
AQI (US)
Good
Pollutants|Pollens
PM2.5
μg/m³
6.9
PM10
μg/m³
24
O3
μg/m³
50.6
NO2
μg/m³
18.1
CO
μg/m³
430.6
SO2
μg/m³
0.6
Weather
  • ℃
  • ℉
23℃
44%
6 kph
8 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • PM10
  • O3
  • NO2
  • CO
  • SO2
Places included
Alameda
AQI 45
Albany
AQI 12
Berkeley
AQI 19
Castro Valley
AQI 45
Dublin
AQI 50
Emeryville
AQI 28
Fairview
AQI 45
Fremont
AQI 50
Hayward
AQI 45
Livermore
AQI 50
Newark
AQI 34
Oakland
AQI 34
Piedmont
AQI 45
Pleasanton
AQI 50
San Leandro
AQI 45
San Lorenzo
AQI 45
Sunol
AQI 50
Union City
AQI 50
Data Sources
http://www.airnow.gov/

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Cities Nearby

Livermore
AQI 50
Sunol
AQI 50
Pleasanton
AQI 50
Dublin
AQI 50
Fremont
AQI 50
Milpitas
AQI 64
Mountain House
AQI 52
East Foothills
AQI 64
Alum Rock
AQI 64
Union City
AQI 50
Blackhawk
AQI 50