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California

United States

2026-08-18 11:00
CAQI (Europe)
Very Low
Pollutants|Pollens
O3
μg/m³
50.5
PM10
μg/m³
19.3
PM2.5
μg/m³
6.4
NO2
μg/m³
11.2
CO
μg/m³
296.9
SO2
μg/m³
1.5
Weather
  • ℃
  • ℉
20℃
68%
9 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • CAQI (Europe)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • NO2
  • CO
  • SO2
Places included
Alameda County
AQI 27
Alpine County
AQI 5
Amador County
AQI 22
Butte County
AQI 34
Calaveras County
AQI 24
Colusa County
AQI 35
Contra Costa County
AQI 15
Del Norte County
AQI 5
El Dorado County
AQI 23
Fresno County
AQI 29
Glenn County
AQI 20
Humboldt County
AQI 9
Imperial County
AQI 31
Inyo County
AQI 25
Kern County
AQI 64
Kings County
AQI 26
Lake County
AQI 18
Lassen County
AQI 13
Los Angeles County
AQI 24
Madera County
AQI 21
Marin County
AQI 10
Mariposa County
AQI 31
Mendocino County
AQI 18
Merced County
AQI 32
Modoc County
AQI 14
Mono County
AQI 12
Monterey County
AQI 17
Napa County
AQI 8
Nevada County
AQI 11
Orange County
AQI 21
Placer County
AQI 24
Plumas County
AQI 6
Riverside County
AQI 36
Sacramento County
AQI 20
San Benito County
AQI 14
San Bernardino County
AQI 32
San Diego County
AQI 19
San Francisco County
AQI 19
San Joaquin County
AQI 19
San Luis Obispo County
AQI 21
San Mateo County
AQI 16
Santa Barbara County
AQI 20
Santa Clara County
AQI 18
Santa Cruz County
AQI 19
Shasta County
AQI 33
Sierra County
AQI 6
Siskiyou County
AQI 17
Solano County
AQI 19
Sonoma County
AQI 3
Stanislaus County
AQI 26
Sutter County
AQI 28
Tehama County
AQI 42
Trinity County
AQI 10
Tulare County
AQI 27
Tuolumne County
AQI 23
Ventura County
AQI 38
Yolo County
AQI 16
Yuba County
AQI 19
Data Sources
http://www.airnow.gov/

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