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California

United States

2025-12-19 10:00
CAQI (Europe)
Very Low
Pollutants|Pollens
PM2.5
μg/m³
10.5
PM10
μg/m³
15
NO2
μg/m³
26.5
O3
μg/m³
27.2
CO
μg/m³
617.4
SO2
μg/m³
1.5
Weather
  • ℃
  • ℉
12℃
100%
0 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • CAQI (Europe)
  • Pollen
  • PM2.5
  • PM10
  • NO2
  • O3
  • CO
  • SO2
Places included
Alameda County
AQI 23
Alpine County
AQI 5
Amador County
AQI 17
Butte County
AQI 18
Calaveras County
AQI 17
Colusa County
AQI 21
Contra Costa County
AQI 21
Del Norte County
AQI 4
El Dorado County
AQI 16
Fresno County
AQI 17
Glenn County
AQI 25
Humboldt County
AQI 4
Imperial County
AQI 33
Inyo County
AQI 18
Kern County
AQI 15
Kings County
AQI 18
Lake County
AQI 14
Lassen County
AQI 39
Los Angeles County
AQI 31
Madera County
AQI 21
Marin County
AQI 17
Mariposa County
AQI 29
Mendocino County
AQI 21
Merced County
AQI 28
Modoc County
AQI 2
Mono County
AQI 6
Monterey County
AQI 52
Napa County
AQI 20
Nevada County
AQI 25
Orange County
AQI 34
Placer County
AQI 17
Plumas County
AQI 16
Riverside County
AQI 30
Sacramento County
AQI 25
San Benito County
AQI 14
San Bernardino County
AQI 31
San Diego County
AQI 28
San Francisco County
AQI 24
San Joaquin County
AQI 27
San Luis Obispo County
AQI 14
San Mateo County
AQI 20
Santa Barbara County
AQI 14
Santa Clara County
AQI 20
Santa Cruz County
AQI 14
Shasta County
AQI 17
Sierra County
AQI 3
Siskiyou County
AQI 23
Solano County
AQI 19
Sonoma County
AQI 20
Stanislaus County
AQI 31
Sutter County
AQI 23
Tehama County
AQI 23
Trinity County
AQI 33
Tulare County
AQI 21
Tuolumne County
AQI 1
Ventura County
AQI 13
Yolo County
AQI 24
Yuba County
AQI 22
Data Sources
http://www.airnow.gov/

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