Primary Pollutant

 Ontario MODERATE aqi boy

Ontario Air Quality Index (AQI)

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

Last Update: 10 Jun 2023, 06:05am

Ontario MODERATE aqi boy Ontario MODERATE aqi boy Ontario MODERATE aqi boy


Comparative Exposure with Ontario

24 hrs avg AQI

Ontario

Canada
93

Major Air Pollutants in Ontario

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Ontario carbon monoxide icon
40 (CO)

PM2.5 2.3X

The current PM2.5 concentration in Ontario is 2.3 times above 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 MODERATE 80 80 43 26 0 9 93
Belleville MODERATE 76 76 40 24 0 13 94
Bluewater POOR 105 105 61 37 0 8 82
Brampton MODERATE 95 95 55 33 0 12 77
Brantford POOR 144 144 88 53 0 8 100
Burlington POOR 115 115 68 41 0 12 76
Chatham POOR 107 107 63 38 0 15 55
Cornwall GOOD 21 21 8 5 0 8 93
Guelph POOR 129 129 78 47 0 6 100
Hamilton MODERATE 91 91 51 31 0 12 77
Huntsville POOR 110 110 2 39 0 8 100
Kincardine POOR 105 105 61 37 0 12 88
London POOR 122 122 73 44 0 9 93
Loyalist POOR 105 105 61 37 0 11 93
Mississauga POOR 107 107 63 38 0 12 77
Newmarket MODERATE 74 74 25 23 0 12 75
North Bay POOR 147 147 54 55 0 11 100
Oakville POOR 119 119 71 43 0 12 77
Oliver Paipoonge GOOD 50 50 20 12 0 16 88
Oshawa MODERATE 93 93 53 32 0 12 94
Ottawa GOOD 17 17 5 4 0 9 100
Parry Sound MODERATE 61 61 28 17 0 12 90
Peterborough POOR 110 110 65 39 0 11 100
St Catharines MODERATE 91 91 8 31 0 15 86
St Thomas MODERATE 89 89 8 30 0 14 73
Sudbury POOR 124 124 75 45 0 11 87
Temiskaming Shores GOOD 29 29 12 7 0 10 94
Thunder Bay GOOD 16 16 17 3 0 16 88
Toronto MODERATE 100 100 58 35 0 14 75
Waterloo UNHEALTHY 234 234 349 184 0 6 100
Windsor MODERATE 97 97 56 34 0 15 58

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
shut opening icon cross

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

58
100
AQI (IN)
AQI (US)
14˚C / 75%
6
17
AQI (IN)
AQI (US)
13˚C / 88%
1
4
AQI (IN)
AQI (US)
11˚C / 97%
61
105
AQI (IN)
AQI (US)
19˚C / 47%
36
71
AQI (IN)
AQI (US)
14˚C / 67%
5
17
AQI (IN)
AQI (US)
9˚C / 100%
9
25
AQI (IN)
AQI (US)
11˚C / 100%
56
97
AQI (IN)
AQI (US)
15˚C / 58%

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
93


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 93 (MODERATE) AQI now. This was last updated 3 hours ago .

The current concentration of PM2.5 in Ontario is 35 (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 1.40 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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