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  3. California

California

United States

2026-06-29 21:00
AQI (US)
Good
Pollutants|Pollens
O3
μg/m³
83.7
PM2.5
μg/m³
5.5
PM10
μg/m³
22.3
NO2
μg/m³
6
CO
μg/m³
244.1
SO2
μg/m³
1.4
Weather
  • ℃
  • ℉
33℃
23%
17 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • O3
  • PM2.5
  • PM10
  • NO2
  • CO
  • SO2
Places included
Alameda County
AQI 56
Alpine County
AQI 7
Amador County
AQI 40
Butte County
AQI 36
Calaveras County
AQI 42
Colusa County
AQI 34
Contra Costa County
AQI 51
Del Norte County
AQI 17
El Dorado County
AQI 36
Fresno County
AQI 43
Glenn County
AQI 31
Humboldt County
AQI 22
Imperial County
AQI 69
Inyo County
AQI 39
Kern County
AQI 49
Kings County
AQI 43
Lake County
AQI 4
Lassen County
AQI 18
Los Angeles County
AQI 53
Madera County
AQI 44
Marin County
AQI 46
Mariposa County
AQI 43
Mendocino County
AQI 30
Merced County
AQI 42
Modoc County
AQI 14
Mono County
AQI 43
Monterey County
AQI 55
Napa County
AQI 54
Nevada County
AQI 53
Orange County
AQI 53
Placer County
AQI 37
Plumas County
AQI 11
Riverside County
AQI 50
Sacramento County
AQI 48
San Benito County
AQI 38
San Bernardino County
AQI 61
San Diego County
AQI 46
San Francisco County
AQI 45
San Joaquin County
AQI 33
San Luis Obispo County
AQI 51
San Mateo County
AQI 54
Santa Barbara County
AQI 36
Santa Clara County
AQI 58
Santa Cruz County
AQI 59
Shasta County
AQI 29
Sierra County
AQI 11
Siskiyou County
AQI 30
Solano County
AQI 36
Sonoma County
AQI 51
Stanislaus County
AQI 37
Sutter County
AQI 30
Tehama County
AQI 32
Trinity County
AQI 18
Tulare County
AQI 46
Tuolumne County
AQI 38
Ventura County
AQI 38
Yolo County
AQI 38
Yuba County
AQI 20
Data Sources
http://www.airnow.gov/

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