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  3. California

California

United States

2026-06-28 18:00
AQI (US)
Good
Pollutants|Pollens
O3
μg/m³
68.6
PM2.5
μg/m³
4.5
PM10
μg/m³
16.7
CO
μg/m³
229.2
NO2
μg/m³
3.9
SO2
μg/m³
1.2
Weather
  • ℃
  • ℉
26℃
43%
12 kph
9 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 23
Amador County
AQI 30
Butte County
AQI 27
Calaveras County
AQI 32
Colusa County
AQI 28
Contra Costa County
AQI 48
Del Norte County
AQI 23
El Dorado County
AQI 28
Fresno County
AQI 32
Glenn County
AQI 26
Humboldt County
AQI 15
Imperial County
AQI 47
Inyo County
AQI 46
Kern County
AQI 38
Kings County
AQI 42
Lake County
AQI 3
Lassen County
AQI 5
Los Angeles County
AQI 31
Madera County
AQI 42
Marin County
AQI 47
Mariposa County
AQI 41
Mendocino County
AQI 16
Merced County
AQI 43
Modoc County
AQI 3
Mono County
AQI 31
Monterey County
AQI 51
Napa County
AQI 26
Nevada County
AQI 41
Orange County
AQI 33
Placer County
AQI 29
Plumas County
AQI 5
Riverside County
AQI 52
Sacramento County
AQI 30
San Benito County
AQI 29
San Bernardino County
AQI 39
San Diego County
AQI 35
San Francisco County
AQI 39
San Joaquin County
AQI 26
San Luis Obispo County
AQI 30
San Mateo County
AQI 43
Santa Barbara County
AQI 39
Santa Clara County
AQI 38
Santa Cruz County
AQI 36
Shasta County
AQI 26
Sierra County
AQI 5
Siskiyou County
AQI 27
Solano County
AQI 26
Sonoma County
AQI 27
Stanislaus County
AQI 33
Sutter County
AQI 26
Tehama County
AQI 27
Trinity County
AQI 7
Tulare County
AQI 35
Tuolumne County
AQI 32
Ventura County
AQI 28
Yolo County
AQI 27
Yuba County
AQI 12
Data Sources
http://www.airnow.gov/

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