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  3. California
  4. Contra Costa County

Contra Costa County

California

2026-01-21 01:00
AQI (US)
Moderate
Pollutants|Pollens
PM2.5
μg/m³
9.3
PM10
μg/m³
31
O3
μg/m³
25.7
NO2
μg/m³
17.9
CO
μg/m³
500
SO2
μg/m³
1.4
Weather
  • ℃
  • ℉
7℃
84%
0 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • PM10
  • O3
  • NO2
  • CO
  • SO2
Places included
Alamo
AQI 52
Antioch
AQI 52
Bay Point
AQI 52
Bayview-Montalvin
AQI 39
Bethel Island
AQI 64
Blackhawk
AQI 39
Brentwood
AQI 50
Canyon
AQI 60
Clayton
AQI 52
Clyde
AQI 52
Concord
AQI 52
Contra Costa Centre
AQI 52
Crockett
AQI 34
Danville
AQI 52
Diablo
AQI 52
Discovery Bay
AQI 68
East Richmond Heights
AQI 39
El Cerrito
AQI 45
El Sobrante
AQI 39
Hercules
AQI 39
Kensington
AQI 45
Lafayette
AQI 52
Martinez
AQI 34
Moraga
AQI 54
Oakley
AQI 64
Orinda
AQI 45
Pacheco
AQI 52
Pinole
AQI 39
Pittsburg
AQI 52
Pleasant Hill
AQI 52
Richmond
AQI 39
Rodeo
AQI 39
San Pablo
AQI 39
San Ramon
AQI 39
Vine Hill
AQI 34
Walnut Creek
AQI 52
Data Sources
http://www.airnow.gov/

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Cities Nearby

Blackhawk
AQI 39
Diablo
AQI 52
Danville
AQI 52
Clayton
AQI 52
San Ramon
AQI 39
Alamo
AQI 52
Dublin
AQI 39
Walnut Creek
AQI 52
Contra Costa Centre
AQI 52
Pleasant Hill
AQI 52
Concord
AQI 52