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California

United States

2025-12-19 22:00
CAQI (Europe)
Very Low
Pollutants|Pollens
O3
μg/m³
55.5
PM10
μg/m³
15.9
PM2.5
μg/m³
6.9
NO2
μg/m³
15.2
CO
μg/m³
369.9
SO2
μg/m³
1.2
Weather
  • ℃
  • ℉
13℃
82%
6 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • CAQI (Europe)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • NO2
  • CO
  • SO2
Places included
Alameda County
AQI 21
Alpine County
AQI 9
Amador County
AQI 15
Butte County
AQI 29
Calaveras County
AQI 15
Colusa County
AQI 10
Contra Costa County
AQI 23
Del Norte County
AQI 14
El Dorado County
AQI 20
Fresno County
AQI 26
Glenn County
AQI 14
Humboldt County
AQI 8
Imperial County
AQI 47
Inyo County
AQI 30
Kern County
AQI 42
Kings County
AQI 25
Lake County
AQI 10
Lassen County
AQI 14
Los Angeles County
AQI 47
Madera County
AQI 17
Marin County
AQI 23
Mariposa County
AQI 27
Mendocino County
AQI 10
Merced County
AQI 17
Modoc County
AQI 2
Mono County
AQI 12
Monterey County
AQI 29
Napa County
AQI 6
Nevada County
AQI 12
Orange County
AQI 45
Placer County
AQI 18
Plumas County
AQI 11
Riverside County
AQI 45
Sacramento County
AQI 13
San Benito County
AQI 29
San Bernardino County
AQI 37
San Diego County
AQI 47
San Francisco County
AQI 22
San Joaquin County
AQI 19
San Luis Obispo County
AQI 44
San Mateo County
AQI 28
Santa Barbara County
AQI 26
Santa Clara County
AQI 27
Santa Cruz County
AQI 26
Shasta County
AQI 20
Sierra County
AQI 9
Siskiyou County
AQI 15
Solano County
AQI 24
Sonoma County
AQI 26
Stanislaus County
AQI 18
Sutter County
AQI 12
Tehama County
AQI 5
Trinity County
AQI 12
Tulare County
AQI 26
Tuolumne County
AQI 21
Ventura County
AQI 34
Yolo County
AQI 16
Yuba County
AQI 13
Data Sources
http://www.airnow.gov/

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