1. North America
  2. United States
  3. California
  4. San Bernardino County
  5. Ontario

Ontario

San Bernardino County, California

2025-12-12 12:00
AQI (UK)
Low
Pollutants|Pollens
PM10
μg/m³
35
PM2.5
μg/m³
17.7
NO2
μg/m³
71.8
Weather
  • ℃
  • ℉
14℃
58%
0 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (UK)
  • Pollen
  • PM10
  • PM2.5
  • NO2
Places included
60 Near Road
AQI 2
Ontario Near Road
AQI 2
Data Sources
http://www.airnow.gov/

Get the App

Scan QR Code
Air Matters
Realtime broadcasting air quality information on your phone for more than 180 countries.

iPhone, iPad

Android

Cities Nearby

Ontario
AQI 3
Upland
AQI 3
Chino
AQI 3
Rancho Cucamonga
AQI 3
Claremont
AQI 1
Pomona
AQI 1
San Antonio Heights
AQI 3
Chino Hills
AQI 1
La Verne
AQI 1
Eastvale
AQI 3
San Dimas
AQI 1