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California

United States

2026-10-19 04:00
AQI (China)
Excellent
Pollutants|Pollens
PM10
μg/m³
35.4
O3
μg/m³
68.4
PM2.5
μg/m³
7.9
NO2
μg/m³
15.8
CO
μg/m³
409.5
SO2
μg/m³
1.2
Weather
  • ℃
  • ℉
19℃
39%
0 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • PM10
  • O3
  • PM2.5
  • NO2
  • CO
  • SO2
Places included
Alameda County
AQI 26
Alpine County
AQI 15
Amador County
AQI 21
Butte County
AQI 31
Calaveras County
AQI 23
Colusa County
AQI 32
Contra Costa County
AQI 72
Del Norte County
AQI 12
El Dorado County
AQI 18
Fresno County
AQI 68
Glenn County
AQI 19
Humboldt County
AQI 20
Imperial County
AQI 30
Inyo County
AQI 29
Kern County
AQI 32
Kings County
AQI 76
Lake County
AQI 13
Lassen County
AQI 4
Los Angeles County
AQI 51
Madera County
AQI 49
Marin County
AQI 20
Mariposa County
AQI 55
Mendocino County
AQI 17
Merced County
AQI 38
Modoc County
AQI 4
Mono County
AQI 7
Monterey County
AQI 23
Napa County
AQI 11
Nevada County
AQI 7
Orange County
AQI 53
Placer County
AQI 20
Plumas County
AQI 6
Riverside County
AQI 43
Sacramento County
AQI 23
San Benito County
AQI 29
San Bernardino County
AQI 46
San Diego County
AQI 49
San Francisco County
AQI 21
San Joaquin County
AQI 51
San Luis Obispo County
AQI 34
San Mateo County
AQI 9
Santa Barbara County
AQI 23
Santa Clara County
AQI 29
Santa Cruz County
AQI 29
Shasta County
AQI 63
Sierra County
AQI 4
Siskiyou County
AQI 18
Solano County
AQI 23
Sonoma County
AQI 17
Stanislaus County
AQI 23
Sutter County
AQI 28
Tehama County
AQI 63
Trinity County
AQI 12
Tulare County
AQI 64
Tuolumne County
AQI 25
Ventura County
AQI 53
Yolo County
AQI 24
Yuba County
AQI 28
Data Sources
http://www.airnow.gov/

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