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  4. Alameda County

Alameda County

California

2026-09-13 23:00
AQI (US)
Good
Pollutants|Pollens
O3
μg/m³
72.9
PM2.5
μg/m³
4.2
PM10
μg/m³
12
CO
μg/m³
437.5
NO2
μg/m³
6.3
SO2
μg/m³
0
Weather
  • ℃
  • ℉
21℃
56%
19 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • O3
  • PM2.5
  • PM10
  • CO
  • NO2
  • SO2
Places included
Alameda
AQI 23
Albany
AQI 28
Berkeley
AQI 28
Castro Valley
AQI 23
Dublin
AQI 17
Emeryville
AQI 23
Fairview
AQI 23
Fremont
AQI 34
Hayward
AQI 34
Livermore
AQI 36
Newark
AQI 34
Oakland
AQI 31
Piedmont
AQI 23
Pleasanton
AQI 17
San Leandro
AQI 23
San Lorenzo
AQI 23
Sunol
AQI 17
Union City
AQI 34
Data Sources
http://www.airnow.gov/

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Cities Nearby

Livermore
AQI 36
Sunol
AQI 17
Pleasanton
AQI 17
Dublin
AQI 17
Fremont
AQI 34
Milpitas
AQI 12
Mountain House
AQI 50
East Foothills
AQI 23
Alum Rock
AQI 23
Union City
AQI 34
Blackhawk
AQI 28