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California

United States

2026-08-18 13:00
CAQI (Europe)
Very Low
Pollutants|Pollens
PM10
μg/m³
20.2
O3
μg/m³
47
PM2.5
μg/m³
6.3
NO2
μg/m³
12.7
CO
μg/m³
349.3
SO2
μg/m³
1.4
Weather
  • ℃
  • ℉
21℃
46%
7 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • CAQI (Europe)
  • Pollen
  • PM10
  • O3
  • PM2.5
  • NO2
  • CO
  • SO2
Places included
Alameda County
AQI 35
Alpine County
AQI 5
Amador County
AQI 19
Butte County
AQI 34
Calaveras County
AQI 23
Colusa County
AQI 34
Contra Costa County
AQI 20
Del Norte County
AQI 4
El Dorado County
AQI 21
Fresno County
AQI 29
Glenn County
AQI 52
Humboldt County
AQI 12
Imperial County
AQI 31
Inyo County
AQI 24
Kern County
AQI 62
Kings County
AQI 25
Lake County
AQI 14
Lassen County
AQI 14
Los Angeles County
AQI 26
Madera County
AQI 29
Marin County
AQI 13
Mariposa County
AQI 32
Mendocino County
AQI 14
Merced County
AQI 26
Modoc County
AQI 14
Mono County
AQI 10
Monterey County
AQI 16
Napa County
AQI 8
Nevada County
AQI 12
Orange County
AQI 21
Placer County
AQI 22
Plumas County
AQI 6
Riverside County
AQI 32
Sacramento County
AQI 18
San Benito County
AQI 11
San Bernardino County
AQI 37
San Diego County
AQI 25
San Francisco County
AQI 19
San Joaquin County
AQI 20
San Luis Obispo County
AQI 22
San Mateo County
AQI 14
Santa Barbara County
AQI 20
Santa Clara County
AQI 17
Santa Cruz County
AQI 19
Shasta County
AQI 32
Sierra County
AQI 6
Siskiyou County
AQI 19
Solano County
AQI 18
Sonoma County
AQI 17
Stanislaus County
AQI 23
Sutter County
AQI 29
Tehama County
AQI 41
Trinity County
AQI 10
Tulare County
AQI 28
Tuolumne County
AQI 23
Ventura County
AQI 33
Yolo County
AQI 17
Yuba County
AQI 15
Data Sources
http://www.airnow.gov/

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