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California

United States

2026-08-18 03:00
CAQI (Europe)
Low
Pollutants|Pollens
O3
μg/m³
88.9
PM10
μg/m³
32.4
PM2.5
μg/m³
6.3
NO2
μg/m³
10
CO
μg/m³
305.8
SO2
μg/m³
1.6
Weather
  • ℃
  • ℉
29℃
34%
11 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • CAQI (Europe)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • NO2
  • CO
  • SO2
Places included
Alameda County
AQI 25
Alpine County
AQI 11
Amador County
AQI 50
Butte County
AQI 52
Calaveras County
AQI 49
Colusa County
AQI 48
Contra Costa County
AQI 18
Del Norte County
AQI 4
El Dorado County
AQI 47
Fresno County
AQI 75
Glenn County
AQI 34
Humboldt County
AQI 10
Imperial County
AQI 40
Inyo County
AQI 32
Kern County
AQI 60
Kings County
AQI 80
Lake County
AQI 15
Lassen County
AQI 8
Los Angeles County
AQI 30
Madera County
AQI 77
Marin County
AQI 18
Mariposa County
AQI 50
Mendocino County
AQI 15
Merced County
AQI 55
Modoc County
AQI 10
Mono County
AQI 14
Monterey County
AQI 22
Napa County
AQI 14
Nevada County
AQI 6
Orange County
AQI 28
Placer County
AQI 41
Plumas County
AQI 2
Riverside County
AQI 52
Sacramento County
AQI 43
San Benito County
AQI 41
San Bernardino County
AQI 42
San Diego County
AQI 32
San Francisco County
AQI 20
San Joaquin County
AQI 36
San Luis Obispo County
AQI 29
San Mateo County
AQI 18
Santa Barbara County
AQI 22
Santa Clara County
AQI 23
Santa Cruz County
AQI 22
Shasta County
AQI 42
Sierra County
AQI 2
Siskiyou County
AQI 39
Solano County
AQI 25
Sonoma County
AQI 14
Stanislaus County
AQI 49
Sutter County
AQI 42
Tehama County
AQI 47
Trinity County
AQI 9
Tulare County
AQI 75
Tuolumne County
AQI 48
Ventura County
AQI 27
Yolo County
AQI 38
Yuba County
AQI 31
Data Sources
http://www.airnow.gov/

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