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California

United States

2025-12-29 22:00
AQI (UK)
Low
Pollutants|Pollens
O3
μg/m³
62.8
PM10
μg/m³
10.3
PM2.5
μg/m³
4
NO2
μg/m³
7.4
SO2
μg/m³
0.9
Weather
  • ℃
  • ℉
11℃
78%
0 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (UK)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • NO2
  • SO2
Places included
Alameda County
AQI 2
Alpine County
AQI 1
Amador County
AQI 2
Butte County
AQI 3
Calaveras County
AQI 2
Colusa County
AQI 2
Contra Costa County
AQI 2
Del Norte County
AQI 1
El Dorado County
AQI 2
Fresno County
AQI 2
Glenn County
AQI 3
Humboldt County
AQI 2
Imperial County
AQI 3
Inyo County
AQI 3
Kern County
AQI 2
Kings County
AQI 2
Lake County
AQI 1
Lassen County
AQI 1
Los Angeles County
AQI 3
Madera County
AQI 2
Marin County
AQI 2
Mariposa County
AQI 3
Mendocino County
AQI 2
Merced County
AQI 2
Modoc County
AQI 1
Mono County
AQI 1
Monterey County
AQI 2
Napa County
AQI 1
Nevada County
AQI 1
Orange County
AQI 3
Placer County
AQI 2
Plumas County
AQI 1
Riverside County
AQI 3
Sacramento County
AQI 2
San Benito County
AQI 3
San Bernardino County
AQI 3
San Diego County
AQI 3
San Francisco County
AQI 2
San Joaquin County
AQI 2
San Luis Obispo County
AQI 3
San Mateo County
AQI 3
Santa Barbara County
AQI 3
Santa Clara County
AQI 2
Santa Cruz County
AQI 3
Shasta County
AQI 3
Sierra County
AQI 1
Siskiyou County
AQI 2
Solano County
AQI 2
Sonoma County
AQI 2
Stanislaus County
AQI 2
Sutter County
AQI 2
Tehama County
AQI 3
Trinity County
AQI 1
Tulare County
AQI 2
Tuolumne County
AQI 1
Ventura County
AQI 3
Yolo County
AQI 2
Yuba County
AQI 1
Data Sources
http://www.airnow.gov/

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