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California

United States

2026-03-12 12:00
AQI (China)
Excellent
Pollutants|Pollens
PM10
μg/m³
16.8
NO2
μg/m³
24.6
O3
μg/m³
30.3
PM2.5
μg/m³
6
CO
μg/m³
600.3
SO2
μg/m³
1.6
Weather
  • ℃
  • ℉
12℃
73%
5 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • PM10
  • NO2
  • O3
  • PM2.5
  • CO
  • SO2
Places included
Alameda County
AQI 15
Alpine County
AQI 6
Amador County
AQI 4
Butte County
AQI 14
Calaveras County
AQI 7
Colusa County
AQI 11
Contra Costa County
AQI 25
Del Norte County
AQI 9
El Dorado County
AQI 17
Fresno County
AQI 35
Glenn County
AQI 7
Humboldt County
AQI 12
Imperial County
AQI 23
Inyo County
AQI 19
Kern County
AQI 24
Kings County
AQI 38
Lake County
AQI 4
Lassen County
AQI 3
Los Angeles County
AQI 23
Madera County
AQI 24
Marin County
AQI 15
Mariposa County
AQI 25
Mendocino County
AQI 21
Merced County
AQI 12
Modoc County
AQI 2
Mono County
AQI 10
Monterey County
AQI 17
Napa County
AQI 3
Nevada County
AQI 2
Orange County
AQI 28
Placer County
AQI 10
Plumas County
AQI 8
Riverside County
AQI 25
Sacramento County
AQI 18
San Benito County
AQI 13
San Bernardino County
AQI 35
San Diego County
AQI 20
San Francisco County
AQI 26
San Joaquin County
AQI 26
San Luis Obispo County
AQI 18
San Mateo County
AQI 12
Santa Barbara County
AQI 15
Santa Clara County
AQI 17
Santa Cruz County
AQI 13
Shasta County
AQI 19
Sierra County
AQI 11
Siskiyou County
AQI 9
Solano County
AQI 13
Sonoma County
AQI 8
Stanislaus County
AQI 28
Sutter County
AQI 16
Tehama County
AQI 11
Trinity County
AQI 6
Tulare County
AQI 38
Tuolumne County
AQI 12
Ventura County
AQI 23
Yolo County
AQI 21
Yuba County
AQI 16
Data Sources
http://www.airnow.gov/

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