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  3. California

California

United States

2026-06-29 03:00
AQI (US)
Good
Pollutants|Pollens
O3
μg/m³
73.6
PM2.5
μg/m³
5.2
PM10
μg/m³
22.1
NO2
μg/m³
5.9
CO
μg/m³
274.1
SO2
μg/m³
1.3
Weather
  • ℃
  • ℉
22℃
44%
7 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • O3
  • PM2.5
  • PM10
  • NO2
  • CO
  • SO2
Places included
Alameda County
AQI 36
Alpine County
AQI 9
Amador County
AQI 37
Butte County
AQI 32
Calaveras County
AQI 39
Colusa County
AQI 32
Contra Costa County
AQI 45
Del Norte County
AQI 45
El Dorado County
AQI 30
Fresno County
AQI 48
Glenn County
AQI 30
Humboldt County
AQI 25
Imperial County
AQI 93
Inyo County
AQI 42
Kern County
AQI 47
Kings County
AQI 40
Lake County
AQI 9
Lassen County
AQI 11
Los Angeles County
AQI 36
Madera County
AQI 41
Marin County
AQI 57
Mariposa County
AQI 40
Mendocino County
AQI 28
Merced County
AQI 39
Modoc County
AQI 10
Mono County
AQI 20
Monterey County
AQI 56
Napa County
AQI 34
Nevada County
AQI 30
Orange County
AQI 39
Placer County
AQI 26
Plumas County
AQI 12
Riverside County
AQI 68
Sacramento County
AQI 32
San Benito County
AQI 45
San Bernardino County
AQI 43
San Diego County
AQI 37
San Francisco County
AQI 45
San Joaquin County
AQI 29
San Luis Obispo County
AQI 50
San Mateo County
AQI 33
Santa Barbara County
AQI 46
Santa Clara County
AQI 35
Santa Cruz County
AQI 65
Shasta County
AQI 26
Sierra County
AQI 12
Siskiyou County
AQI 27
Solano County
AQI 28
Sonoma County
AQI 45
Stanislaus County
AQI 35
Sutter County
AQI 32
Tehama County
AQI 32
Trinity County
AQI 12
Tulare County
AQI 42
Tuolumne County
AQI 38
Ventura County
AQI 41
Yolo County
AQI 36
Yuba County
AQI 31
Data Sources
http://www.airnow.gov/

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