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

Ontario

San Bernardino County, California

2026-05-30 13:00
AQI (US)
Good
Pollutants|Pollens
PM2.5
μg/m³
6.6
PM10
μg/m³
33
NO2
μg/m³
47.1
CO
μg/m³
625
Weather
  • ℃
  • ℉
16℃
75%
2 kph
2 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • PM10
  • NO2
  • CO
Places included
60 Near Road
AQI 20
Ontario Near Road
AQI 25
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 37
Upland
AQI 37
Chino
AQI 56
Rancho Cucamonga
AQI 37
Claremont
AQI 16
Pomona
AQI 16
San Antonio Heights
AQI 37
Chino Hills
AQI 16
La Verne
AQI 16
Eastvale
AQI 56
San Dimas
AQI 16