Primary Pollutant

(AQI)

 Ontario GOOD aqi boy

Ontario Air Quality Index (AQI)

Real-time PM2.5, PM10 air pollution level Canada

Last Update: 26 Nov 2022, 07:05am

Ontario GOOD aqi boy Ontario GOOD aqi boy Ontario GOOD aqi boy


Comparative Exposure with Ontario

24 hrs avg AQI

Ontario

Canada
27

Major Air Pollutants in Ontario

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Ontario carbon monoxide icon
28 (CO)

PM2.5

The current PM2.5 concentration in Ontario is ✓below the recommended limit given by the WHO 24 hrs air quality guidelines value.

Ontario - Cities Air Pollution Level

Status AQI AQI-US AQI-IN PM2.5 PM10 Temp Humid
Barrie GOOD 13 13 9 3 0 1 84
Belleville GOOD 19 19 20 2 0 2 87
Bluewater GOOD 42 42 17 10 0 1 96
Brampton GOOD 33 33 14 8 0 0 100
Brantford GOOD 46 46 18 11 0 -1 93
Burlington GOOD 38 38 15 9 0 0 89
Chatham GOOD 38 38 15 9 0 0 97
Cornwall GOOD 16 16 17 2 0 1 78
Hamilton GOOD 24 24 16 6 0 1 86
Huntsville GOOD 14 14 15 1 0 0 96
Kincardine GOOD 22 22 24 5 0 3 98
London GOOD 33 33 17 8 0 0 88
Loyalist GOOD 21 21 23 1 0 3 75
Mississauga GOOD 38 38 15 9 0 2 87
Newmarket GOOD 25 25 10 6 0 -1 98
North Bay GOOD 42 42 19 10 0 2 93
Oakville GOOD 29 29 15 7 0 2 87
Oliver Paipoonge GOOD 8 8 4 2 0 2 82
Oshawa GOOD 13 13 6 3 0 -2 93
Ottawa GOOD 16 16 16 3 0 0 86
Parry Sound GOOD 22 22 24 2 0 5 81
Peterborough GOOD 19 19 21 2 0 -1 100
St Catharines GOOD 16 16 17 3 0 2 89
St Thomas GOOD 33 33 14 8 0 0 97
Sudbury GOOD 19 19 20 2 0 2 91
Thunder Bay GOOD 29 29 12 7 0 -5 95
Toronto GOOD 24 24 11 6 0 2 87
Waterloo GOOD 42 42 17 10 0 -1 92
Windsor MODERATE 52 52 21 13 0 0 75

Weather Conditions in Ontario

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What are the weather and climatic conditions in Ontario?
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Temperature icon
˚C | ˚F

Local Time

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Sunrise
Sunset
06:26 AM
06:26 PM
Wind Speed Icon

Wind speed

33 km/h

UV Index Icon

UV Index

16

Pressure Icon

Pressure

800 mb


Health Advice For Ontario

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How to protect yourself from air pollution around Ontario, Canada?
wear mask icon

Wear Mask

Required
stay indoors icon

Stay Indoor

Not Required
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Windows

Keep Close
use a purifier icon

Use Purifier

Required
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Family

Avoid Outdoor

Ontario Air Quality Forecast



Day

AQI

Weather

Temp.

Today

134

AQI

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Friday

134

AQI

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Saturday

134

AQI

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Sunday

134

AQI

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Monday

134

AQI

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Tuesday

134

AQI

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Wednesday

134

AQI

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Canada - Metro Cities AQI

11
24
AQI (IN)
AQI (US)
2˚C / 87%
12
15
AQI (IN)
AQI (US)
1˚C / 69%
2
13
AQI (IN)
AQI (US)
˚C / 57%
3
10
AQI (IN)
AQI (US)
-3˚C / 86%
16
16
AQI (IN)
AQI (US)
˚C / 86%
4
10
AQI (IN)
AQI (US)
5˚C / 86%
21
52
AQI (IN)
AQI (US)
˚C / 75%

Historic Air Quality Graph of Ontario

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Best

Oct 1, 2020

Worst

Oct 1, 2020

0

Explore an insightful air pollution data for last 24 hrs, 7 days & 1 month




Comparative Exposure with Ontario

24 hrs avg AQI

Ontario

Canada
27


FAQs of Ontario's Air Quality Index

(Frequently Asked Questions)


Quick answers to some commonly asked questions about the air pollution of Ontario.


The real-time air quality in Ontario is 27 (GOOD) AQI now. This was last updated 2 hours ago .

The current concentration of PM2.5 in Ontario is 6 (µg/m³). The World Health Organisation (WHO) recommends 15 µg/m³ as the threshold concentration of PM2.5 for 24 hrs mean. Currently, the concentration is 0.24 times the recommended limit.

Generally, the air quality at Ontario starts deteriorating in late October. The winters are the worst-hit season in terms of air pollution.

You should wear a good N95 mask when you go outdoor in Ontario until the AQI is improving upto moderate range.

Office going people should avoid personal vehicles and use public transportations or carpooling.

(i) The primary causes of outdoor air pollution are solid, liquid particles called aerosols & gase from vehicles emissions, construction activities, factories, burning stubble & fossil fuels and wildfire, etc.

(ii) Main causes of indoor air pollution are harmful gases from cooking fuels (such as wood, crop wastes, charcoal, coal and dung), damp, mould smoke, chemicals from cleaning materials, etc.

Indoor air pollution in Ontario is as dangerous as outdoor pollution, because the air pollutants come inside the houses or buildings through doors, windows and ventilation.

In Ontario, you must use an air purifier or fresh air machine at home or office indoor and close all the doors, windows and ventilations when the outdoor air quality index (aqi) in Ontario is very high. Proper ventilation is highly recommended only when outdoor air quality is improving and moderate AQI range.

World's Most Polluted Cities & Countries AQI Ranking

Real-time top most polluted cities, and monthly & annual historic AQI ranking of cities & countries

Air Quality Solutions for Ontario

Find out Prana Air's air quality monitors & solutions to fight air pollution in your city.



prana air squair indoor air quality monitor for Ontario





Keep a track of Ontario Air Pollution Level On “AQI Air Quality App

Know what you breathe and the quality of air in your city and nearby locations. Real-time AQI, map, weather & fire data, health advice with insightful & analytical dashboards.

aqi air quality mobile app for Ontario
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