Primary Pollutant

(AQI)

 Ontario GOOD aqi boy

Ontario Air Quality Index (AQI) Live

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

Last Update: 02 Mar 2024, 11:05pm

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


Comparative Exposure with Ontario

24 hrs avg AQI

Ontario

Canada
49

Major Air Pollutants in Ontario

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Ontario carbon monoxide icon
47 (CO)
Ontario no2 nitrogen dioxide Icon
10 (NO2)

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
Mississauga GOOD 38 38 18 9 0 5 100
Windsor MODERATE 64 64 30 18 0 6 80
Hamilton MODERATE 82 82 44 26 0 4 100
Toronto MODERATE 54 54 25 15 0 5 100
Bluewater MODERATE 57 57 16 15 0 5 96
Loyalist GOOD 42 42 17 10 0 4 100
Ottawa MODERATE 73 73 29 23 0 2 100
St Catharines GOOD 33 33 14 8 0 4 95
Petawawa GOOD 26 26 28 3 0 -1 100
Barrie GOOD 29 29 14 7 0 2 99
Thunder Bay GOOD 26 26 28 2 0 3 60
Belleville GOOD 15 15 16 3 0 4 100
Temiskaming Shores GOOD 22 22 24 4 0 1 99
Chatham MODERATE 55 55 23 14 0 3 89
Sudbury GOOD 29 29 23 7 0 2 87
Kincardine GOOD 42 42 17 10 0 4 93
Sault Ste. Marie GOOD 21 21 23 1 0 1 80
North Bay MODERATE 59 59 28 16 0 3 78
Peterborough GOOD 38 38 15 9 0 3 100
Burlington GOOD 33 33 21 8 0 4 100
Cornwall GOOD 42 42 17 10 0 2 100
Huntsville GOOD 42 42 17 10 0 3 93
Guelph GOOD 46 46 18 11 0 4 98
Waterloo GOOD 46 46 18 11 0 4 96
Oshawa GOOD 38 38 15 9 0 5 100
Brantford GOOD 21 21 16 5 0 5 93
London MODERATE 57 57 25 15 0 4 87
Oliver Paipoonge GOOD 25 25 10 6 0 2 55
Newmarket MODERATE 53 53 22 13 0 4 98
Oakville MODERATE 63 63 30 18 0 5 93
Brampton MODERATE 66 66 31 19 0 5 100
Parry Sound GOOD 25 25 20 6 0 3 96
St Thomas GOOD 38 38 19 9 0 5 88

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 cross

Wear Mask

Not Required
stay indoors icon cross

Stay Indoor

Not Required
shut opening icon

Windows

Keep Close
use a purifier icon

Use Purifier

Not Required
Family Icon

Family

Allow 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

25
54
AQI (IN)
AQI (US)
5˚C / 100%
26
58
AQI (IN)
AQI (US)
3˚C / 100%
16
45
AQI (IN)
AQI (US)
-16˚C / 89%
8
23
AQI (IN)
AQI (US)
-19˚C / 77%
29
73
AQI (IN)
AQI (US)
2˚C / 100%
18
21
AQI (IN)
AQI (US)
3˚C / 93%
30
64
AQI (IN)
AQI (US)
6˚C / 80%

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
49


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 49 (GOOD) AQI now. This was last updated 2 hours ago .

The current concentration of PM2.5 in Ontario is 13 (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 0.52 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

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Air Quality Solutions for Ontario

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



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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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