1. North America
  2. United States
  3. California
  4. Contra Costa County

Contra Costa County

California

2026-05-09 23:00
CAQI (Europe)
Low
Pollutants|Pollens
O3
μg/m³
92.1
PM10
μg/m³
18
PM2.5
μg/m³
8.5
CO
μg/m³
375
NO2
μg/m³
3.7
SO2
μg/m³
1.3
Weather
  • ℃
  • ℉
23℃
49%
24 kph
3 of 11
Historical Data
  • Hourly
  • Daily
  • CAQI (Europe)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • CO
  • NO2
  • SO2
Places included
Alamo
AQI 15
Antioch
AQI 15
Bay Point
AQI 15
Bayview-Montalvin
AQI 15
Bethel Island
AQI 39
Blackhawk
AQI 14
Brentwood
AQI 17
Canyon
AQI 15
Clayton
AQI 15
Clyde
AQI 15
Concord
AQI 37
Contra Costa Centre
AQI 15
Crockett
AQI 12
Danville
AQI 15
Diablo
AQI 15
Discovery Bay
AQI 18
East Richmond Heights
AQI 15
El Cerrito
AQI 15
El Sobrante
AQI 12
Hercules
AQI 15
Kensington
AQI 15
Lafayette
AQI 15
Martinez
AQI 12
Moraga
AQI 15
Oakley
AQI 41
Orinda
AQI 15
Pacheco
AQI 15
Pinole
AQI 15
Pittsburg
AQI 15
Pleasant Hill
AQI 15
Richmond
AQI 15
Rodeo
AQI 15
San Pablo
AQI 12
San Ramon
AQI 14
Vine Hill
AQI 12
Walnut Creek
AQI 15
Data Sources
http://www.airnow.gov/

Get the App

Scan QR Code
Air Matters
Realtime broadcasting air quality information on your phone for more than 180 countries.

iPhone, iPad

Android

Cities Nearby

Blackhawk
AQI 14
Diablo
AQI 15
Danville
AQI 15
Clayton
AQI 15
San Ramon
AQI 14
Alamo
AQI 15
Dublin
AQI 14
Walnut Creek
AQI 15
Contra Costa Centre
AQI 15
Pleasant Hill
AQI 15
Concord
AQI 37