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  4. Alameda County

Alameda County

California

2026-05-23 18:00
AQI (US)
Good
Pollutants|Pollens
O3
μg/m³
70.4
PM2.5
μg/m³
4.6
PM10
μg/m³
21
NO2
μg/m³
9.4
CO
μg/m³
395.8
SO2
μg/m³
0.9
Weather
  • ℃
  • ℉
23℃
44%
13 kph
8 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • O3
  • PM2.5
  • PM10
  • NO2
  • CO
  • SO2
Places included
Alameda
AQI 12
Albany
AQI 12
Berkeley
AQI 30
Castro Valley
AQI 23
Dublin
AQI 39
Emeryville
AQI 12
Fairview
AQI 23
Fremont
AQI 39
Hayward
AQI 31
Livermore
AQI 39
Newark
AQI 23
Oakland
AQI 33
Piedmont
AQI 23
Pleasanton
AQI 39
San Leandro
AQI 23
San Lorenzo
AQI 23
Sunol
AQI 39
Union City
AQI 39
Data Sources
http://www.airnow.gov/

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Cities Nearby

Livermore
AQI 39
Sunol
AQI 39
Pleasanton
AQI 39
Dublin
AQI 39
Fremont
AQI 39
Milpitas
AQI 54
Mountain House
AQI 23
East Foothills
AQI 54
Alum Rock
AQI 54
Union City
AQI 39
Blackhawk
AQI 39