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California

United States

2026-08-18 05:00
CAQI (Europe)
Low
Pollutants|Pollens
O3
μg/m³
75.4
PM10
μg/m³
30.9
PM2.5
μg/m³
7.5
NO2
μg/m³
10.8
CO
μg/m³
310.3
SO2
μg/m³
1.7
Weather
  • ℃
  • ℉
26℃
41%
7 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 12
Amador County
AQI 34
Butte County
AQI 41
Calaveras County
AQI 42
Colusa County
AQI 52
Contra Costa County
AQI 20
Del Norte County
AQI 9
El Dorado County
AQI 30
Fresno County
AQI 66
Glenn County
AQI 35
Humboldt County
AQI 6
Imperial County
AQI 52
Inyo County
AQI 32
Kern County
AQI 62
Kings County
AQI 78
Lake County
AQI 11
Lassen County
AQI 8
Los Angeles County
AQI 28
Madera County
AQI 62
Marin County
AQI 19
Mariposa County
AQI 43
Mendocino County
AQI 11
Merced County
AQI 53
Modoc County
AQI 11
Mono County
AQI 14
Monterey County
AQI 23
Napa County
AQI 17
Nevada County
AQI 10
Orange County
AQI 28
Placer County
AQI 35
Plumas County
AQI 2
Riverside County
AQI 42
Sacramento County
AQI 32
San Benito County
AQI 30
San Bernardino County
AQI 36
San Diego County
AQI 30
San Francisco County
AQI 19
San Joaquin County
AQI 28
San Luis Obispo County
AQI 28
San Mateo County
AQI 18
Santa Barbara County
AQI 21
Santa Clara County
AQI 20
Santa Cruz County
AQI 21
Shasta County
AQI 36
Sierra County
AQI 2
Siskiyou County
AQI 34
Solano County
AQI 25
Sonoma County
AQI 17
Stanislaus County
AQI 38
Sutter County
AQI 38
Tehama County
AQI 46
Trinity County
AQI 15
Tulare County
AQI 65
Tuolumne County
AQI 39
Ventura County
AQI 24
Yolo County
AQI 28
Yuba County
AQI 32
Data Sources
http://www.airnow.gov/

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