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  4. Alameda County

Alameda County

California

2026-09-12 02:00
AQI (US)
Moderate
Pollutants|Pollens
PM2.5
μg/m³
10.6
O3
μg/m³
57.6
NO2
μg/m³
11.2
CO
μg/m³
500
PM10
μg/m³
3
SO2
μg/m³
0
Weather
  • ℃
  • ℉
20℃
66%
13 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • O3
  • NO2
  • CO
  • PM10
  • SO2
Places included
Alameda
AQI 45
Albany
AQI 54
Berkeley
AQI 54
Castro Valley
AQI 62
Dublin
AQI 45
Emeryville
AQI 45
Fairview
AQI 62
Fremont
AQI 50
Hayward
AQI 62
Livermore
AQI 45
Newark
AQI 50
Oakland
AQI 55
Piedmont
AQI 45
Pleasanton
AQI 45
San Leandro
AQI 62
San Lorenzo
AQI 62
Sunol
AQI 45
Union City
AQI 50
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 50
Milpitas
AQI 54
Mountain House
AQI 12
East Foothills
AQI 50
Alum Rock
AQI 50
Union City
AQI 50
Blackhawk
AQI 54