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  4. Contra Costa County

Contra Costa County

California

2026-03-12 18:00
AQI (China)
Excellent
Pollutants|Pollens
O3
μg/m³
64.3
PM10
μg/m³
19
PM2.5
μg/m³
6
CO
μg/m³
291.7
NO2
μg/m³
5.3
SO2
μg/m³
2.1
Weather
  • ℃
  • ℉
19℃
46%
5 kph
5 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • CO
  • NO2
  • SO2
Places included
Alamo
AQI 5
Antioch
AQI 5
Bay Point
AQI 5
Bayview-Montalvin
AQI 10
Bethel Island
AQI 29
Blackhawk
AQI 8
Brentwood
AQI 8
Canyon
AQI 18
Clayton
AQI 5
Clyde
AQI 5
Concord
AQI 23
Contra Costa Centre
AQI 5
Crockett
AQI 5
Danville
AQI 5
Diablo
AQI 5
Discovery Bay
AQI 19
East Richmond Heights
AQI 10
El Cerrito
AQI 12
El Sobrante
AQI 10
Hercules
AQI 10
Kensington
AQI 12
Lafayette
AQI 5
Martinez
AQI 5
Moraga
AQI 19
Oakley
AQI 29
Orinda
AQI 12
Pacheco
AQI 5
Pinole
AQI 10
Pittsburg
AQI 5
Pleasant Hill
AQI 5
Richmond
AQI 10
Rodeo
AQI 9
San Pablo
AQI 18
San Ramon
AQI 8
Vine Hill
AQI 5
Walnut Creek
AQI 5
Data Sources
http://www.airnow.gov/

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Cities Nearby

Blackhawk
AQI 8
Diablo
AQI 5
Danville
AQI 5
Clayton
AQI 5
San Ramon
AQI 8
Alamo
AQI 5
Dublin
AQI 8
Walnut Creek
AQI 5
Contra Costa Centre
AQI 5
Pleasant Hill
AQI 5
Concord
AQI 23