Air quality in Ontario

Air quality index (AQI) and PM2.5 air pollution in Ontario

LAST UPDATE (local time)

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Air Quality Data contributor(s)

Station(s) operated by

Contributors

2

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Weather

What is the current weather in Ontario?

Weather icon
WeatherMist
Temperature71.6°C
Humidity34%
Wind1 mp/h
Pressure1017 mb

live aqi city ranking

Real-time USA city ranking

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#cityUS AQI
1 Cypress, California

167

2 Culver City, California

158

3 Del Aire, California

157

4 Inglewood, California

157

5 California City, California

154

6 La Mirada, California

153

7 Lawndale, California

153

8 Los Serranos, California

153

9 El Monte, California

152

10 Montebello, California

152

(local time)

SEE WORLD AQI RANKING

live Ontario aqi ranking

Real-time Ontario air quality ranking

Tooltip icon
#stationUS AQI
1 Ontario Ranch

152

2 South Pinehurst Place

142

3 Pinehurst Place

141

(local time)

SEE WORLD AQI RANKING

US AQI

142

live AQI index
Unhealthy for Sensitive Groups

Human face indicating AQI level

Overview

What is the current air quality in Ontario?

Air pollution levelAir quality indexMain pollutant
Unhealthy for Sensitive Groups 142 US AQIPM2.5
PollutantsConcentration
PM2.5
52.4 µg/m³
!

PM2.5

x10.5

PM2.5 concentration in Ontario air is currently 10.5 times above the WHO annual air quality guideline value

Health Recommendations

How to protect from air pollution in Ontario?

An IQAir mask icon Sensitive groups should wear a mask outdoors
Get a Mask
An IQAir purifier icon Run an air purifier
Get an air purifier
An open window iconClose your windows to avoid dirty outdoor air
A man cycling iconEveryone should reduce outdoor exercise

Forecast

Ontario air quality index (AQI) forecast

DayPollution levelWeatherTemperatureWind
Thursday, Dec 2

Unhealthy for Sensitive Groups 109 US AQI

Human face indicating AQI level
Friday, Dec 3

Unhealthy for Sensitive Groups 109 US AQI

Human face indicating AQI level
Saturday, Dec 4

Unhealthy for Sensitive Groups 131 US AQI

Human face indicating AQI level
Sunday, Dec 5

Unhealthy for Sensitive Groups 142 US AQI

Human face indicating AQI level
Weather icon71.6°57.2°
Wind rotating 244 degree

4.5 mp/h

Today

Unhealthy for Sensitive Groups 142 US AQI

Human face indicating AQI level
Weather icon62.6°55.4°
Wind rotating 102 degree

4.5 mp/h

Tuesday, Dec 7

Moderate 54 US AQI

Human face indicating AQI level
Weather icon64.4°53.6°
Wind rotating 245 degree

6.7 mp/h

Wednesday, Dec 8

Moderate 52 US AQI

Human face indicating AQI level
Weather icon55.4°50°
Wind rotating 231 degree

11.2 mp/h

Thursday, Dec 9

Good 14 US AQI

Human face indicating AQI level
Weather icon57.2°46.4°
Wind rotating 18 degree

4.5 mp/h

Friday, Dec 10

Good 8 US AQI

Human face indicating AQI level
Weather icon59°46.4°
Wind rotating 38 degree

2.2 mp/h

Saturday, Dec 11

Good 11 US AQI

Human face indicating AQI level
Weather icon60.8°48.2°
Wind rotating 226 degree

2.2 mp/h

Interested in hourly forecast? Get the app

Historical

Historic air quality graph for Ontario

How to best protect from air pollution?

Reduce your air pollution exposure in Ontario

Ontario air quality data attribution

Contributors 2

Data sources 1

Data validated and calibrated by IQAir

Where is the cleanest air quality in Ontario?

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