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

Ontario

San Bernardino County, California

2026-06-02 09:00
AQI (China)
Excellent
Pollutants|Pollens
PM10
μg/m³
32
NO2
μg/m³
38.1
PM2.5
μg/m³
11.2
CO
μg/m³
250
Weather
  • ℃
  • ℉
15℃
88%
7 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • PM10
  • NO2
  • PM2.5
  • CO
Places included
60 Near Road
AQI 16
Ontario Near Road
AQI 23
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 32
Upland
AQI 32
Chino
AQI 32
Rancho Cucamonga
AQI 32
Claremont
AQI 31
Pomona
AQI 31
San Antonio Heights
AQI 32
Chino Hills
AQI 31
La Verne
AQI 31
Eastvale
AQI 32
San Dimas
AQI 31