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California

United States

2026-08-18 01:00
CAQI (Europe)
Low
Pollutants|Pollens
O3
μg/m³
100.8
PM10
μg/m³
33
PM2.5
μg/m³
5.9
NO2
μg/m³
8.4
CO
μg/m³
328.1
SO2
μg/m³
1.8
Weather
  • ℃
  • ℉
34℃
24%
13 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • CAQI (Europe)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • NO2
  • CO
  • SO2
Places included
Alameda County
AQI 57
Alpine County
AQI 14
Amador County
AQI 50
Butte County
AQI 50
Calaveras County
AQI 50
Colusa County
AQI 50
Contra Costa County
AQI 30
Del Norte County
AQI 10
El Dorado County
AQI 48
Fresno County
AQI 73
Glenn County
AQI 41
Humboldt County
AQI 15
Imperial County
AQI 53
Inyo County
AQI 33
Kern County
AQI 57
Kings County
AQI 72
Lake County
AQI 11
Lassen County
AQI 4
Los Angeles County
AQI 38
Madera County
AQI 55
Marin County
AQI 21
Mariposa County
AQI 54
Mendocino County
AQI 16
Merced County
AQI 81
Modoc County
AQI 3
Mono County
AQI 13
Monterey County
AQI 44
Napa County
AQI 12
Nevada County
AQI 6
Orange County
AQI 36
Placer County
AQI 51
Plumas County
AQI 0
Riverside County
AQI 56
Sacramento County
AQI 50
San Benito County
AQI 42
San Bernardino County
AQI 55
San Diego County
AQI 35
San Francisco County
AQI 19
San Joaquin County
AQI 42
San Luis Obispo County
AQI 33
San Mateo County
AQI 14
Santa Barbara County
AQI 26
Santa Clara County
AQI 32
Santa Cruz County
AQI 25
Shasta County
AQI 51
Sierra County
AQI 5
Siskiyou County
AQI 45
Solano County
AQI 32
Sonoma County
AQI 12
Stanislaus County
AQI 59
Sutter County
AQI 45
Tehama County
AQI 51
Trinity County
AQI 2
Tulare County
AQI 62
Tuolumne County
AQI 49
Ventura County
AQI 34
Yolo County
AQI 48
Yuba County
AQI 27
Data Sources
http://www.airnow.gov/

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