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  3. California

California

United States

2026-06-29 01:00
AQI (US)
Good
Pollutants|Pollens
O3
μg/m³
82.8
PM2.5
μg/m³
4.3
PM10
μg/m³
20.3
CO
μg/m³
238.3
NO2
μg/m³
3.5
SO2
μg/m³
1.4
Weather
  • ℃
  • ℉
27℃
34%
16 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • O3
  • PM2.5
  • PM10
  • CO
  • NO2
  • SO2
Places included
Alameda County
AQI 42
Alpine County
AQI 10
Amador County
AQI 39
Butte County
AQI 32
Calaveras County
AQI 40
Colusa County
AQI 38
Contra Costa County
AQI 43
Del Norte County
AQI 17
El Dorado County
AQI 32
Fresno County
AQI 51
Glenn County
AQI 37
Humboldt County
AQI 20
Imperial County
AQI 78
Inyo County
AQI 47
Kern County
AQI 49
Kings County
AQI 47
Lake County
AQI 11
Lassen County
AQI 5
Los Angeles County
AQI 39
Madera County
AQI 43
Marin County
AQI 28
Mariposa County
AQI 42
Mendocino County
AQI 33
Merced County
AQI 39
Modoc County
AQI 4
Mono County
AQI 20
Monterey County
AQI 58
Napa County
AQI 30
Nevada County
AQI 30
Orange County
AQI 41
Placer County
AQI 31
Plumas County
AQI 18
Riverside County
AQI 51
Sacramento County
AQI 39
San Benito County
AQI 38
San Bernardino County
AQI 51
San Diego County
AQI 42
San Francisco County
AQI 39
San Joaquin County
AQI 36
San Luis Obispo County
AQI 52
San Mateo County
AQI 32
Santa Barbara County
AQI 49
Santa Clara County
AQI 44
Santa Cruz County
AQI 66
Shasta County
AQI 32
Sierra County
AQI 18
Siskiyou County
AQI 29
Solano County
AQI 32
Sonoma County
AQI 31
Stanislaus County
AQI 40
Sutter County
AQI 32
Tehama County
AQI 33
Trinity County
AQI 9
Tulare County
AQI 49
Tuolumne County
AQI 39
Ventura County
AQI 33
Yolo County
AQI 39
Yuba County
AQI 10
Data Sources
http://www.airnow.gov/

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