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Toronto Air Quality Index (AQI) | Air Pollution

Real-time PM2.5, PM10 air pollution level in Toronto

Last Updated: 2026-07-18 18:31 (Local Time)

Live AQI

59AQI (US)

Air Quality is

Moderate

PM2.5 : 16 µg/m³

pm10 : 19 µg/m³

Good

050

Moderate

100

Poor

150

Unhealthy

200

Severe

300

Hazardous

301+

26 °C

Last Updated: 2026-07-18 18:31 (Local Time)

Rank770^th

Currently, Toronto ranks 770^th among the cities with the highest AQI levels in the world.

Map

Toronto

Major Air Pollutants
Toronto

Particulate Matter(PM₂.₅)

16µg/m³

Particulate Matter(PM₁₀)

19µg/m³

Carbon Monoxide(CO)

288ppb

Sulfur Dioxide(SO₂)

2ppb

Nitrogen Dioxide(NO₂)

6ppb

Ozone(O₃)

29ppb

AQI Graph

Historical Air Quality Data
Toronto

24 Hours

AQI (US)

Toronto

AQI (US)

17-07-2026Time18-07-2026

Time	Toronto
6:31pm	64
7:01pm	77
7:31pm	80
8:01pm	89
8:31pm	72
9:01pm	76
9:31pm	79
10:01pm	78
10:31pm	74
11:01pm	65
11:31pm	81
12:01am	77
12:31am	98
1:01am	93
1:31am	93
2:01am	105
2:31am	104
3:01am	112
3:31am	111
4:01am	95
4:31am	95
5:01am	97
5:31am	96
6:01am	83
6:31am	78
7:01am	121
7:31am	126
8:01am	122
8:31am	121
9:01am	123
9:31am	122
10:01am	124
10:31am	124
11:01am	119
11:31am	122
12:01pm	116
12:31pm	115
1:01pm	100
1:31pm	101
2:01pm	71
2:31pm	72
3:01pm	63
3:31pm	62
4:01pm	52
4:31pm	52
5:01pm	57
5:31pm	58
6:01pm	55
6:31pm	59

Min. AQI (US)4:01pm

126

Max. AQI (US)7:31am

Want air quality data?

AQI (US) Trends - Annual Air Quality Changes
Toronto, Ontario, Canada

AQI (US)

Toronto's Locations
Real-time Air Pollution Level

locations

Status

AQI (US)

PM₂.₅(µg/m³)

PM₁₀(µg/m³)

Temp.(°C)

Humi.(%)

Moderate

Moderate

Moderate

Moderate

Moderate

Moderate

Moderate

Moderate

Wellington Street West

Moderate

Canada's Metro Cities
Air Quality Index

Calgary

Edmonton

Halifax

Ottawa

Toronto

Vancouver

Windsor

Winnipeg

Air Quality Calendar 2026
Toronto

2026

AQI (US)

Health Advice For People Living In
Toronto

1.5Cigarettes per day

Weekly 10.5 Cigarettes

Monthly 45 Cigarettes

Breathing the air in this location is as harmful as smoking 1.5 cigarettes a day.

Source:

Berkeley Earth

Disclaimer: This cigarette-equivalent estimate is based on the average PM2.5 concentration over the last 24 hours, assuming continuous exposure during that time.

Solutions for Current AQI (US)

Air PurifierTurn On

Car FilterMust

N95 MaskMust

Stay IndoorMust

Prevent Health Problems: Understand Your Risks

Toronto

Asthma

Heart Issues

Allergies

Sinus

Cold/Flu

Chronic (COPD)

Disclaimer: The above health risks are precautionary suggestions based on current AQI levels. You may not feel the effects immediately, but prolonged exposure to air pollution can contribute to these health conditions over time. AQI.IN is neither a medical expert nor a provider of medical advice. Please consult a doctor if you experience any of the above similar symptoms.

Most Polluted Cities 2026
Canada

Analyze the real-time most air polluted cities in the country.

Most Polluted Cities Live Ranking 2026

World's Most PollutedCity Rankings (2025)

World's Most PollutedCountry Rankings(2025)

RankCityAQI Status

Standard Value

Waterloo, Ontario

Poor

4xabove Standard

Thunder Bay, Ontario

Poor

3xabove Standard

Parry Sound, Ontario

Poor

3xabove Standard

Guelph, Ontario

Poor

3xabove Standard

Newmarket, Ontario

Poor

3xabove Standard

Lethbridge, Alberta

Poor

2xabove Standard

Brantford, Ontario

Poor

2xabove Standard

Pitt Meadows, British Columbia

Moderate

2xabove Standard

Langley, British Columbia

Moderate

2xabove Standard

10.

Surrey, British Columbia

Moderate

2xabove Standard

Last Updated: 18 Jul 2026, 10:38 PM

AQI City Rankings

Air Quality Solutions For Toronto
Explore the solutions of air quality monitoring & clean air.

Here are some applications that you can go through to find out the solutions.

Air Quality Monitor

Monitor the air quality

Air Quality Sensors

Sensors to measure the air quality

Fresh Air Machine

Clean the air you breathe

Car Cabin Filter

Purify the air in your car

N95 Mask

Shield yourself from pollution

Prana Air offers the solutions of air quality monitoring and clean air machine for Toronto

Air Quality Solution For Offices

A complete solution for air quality monitoring, data analysis, and fresh air solutions in workplaces prioritizing employee's health and productivity.

Air Quality Solutions For Smart City

Prana Air smart city project provides air quality monitors, drones, outdoor air purifiers, and data dashboards solution to improve air quality.

Air Quality Solutions for Schools | Institutes

Prana Air provides the air quality solutions for schools by air monitoring & fresh air machine that help the students to breather clean air.

Air Quality Solutions For Hotels

Prana Air air quality solutions are suited for hotel businesses. The occupancy of hotels is the main reasons for bad air quality.

Air Quality Solutions for Restaurants

Prana Air has the air quality solutions for restaurant, cafes, and gives you the power to know what your customers and staff breathe.

Air Quality Solutions for RMC Plants

Prana Air provides air quality monitoring solutions for RMC plants. Improve compliance, protect workers and community, and reduce emissions.

Air Quality Solutions for Fitness Center

Prana Air provides the air quality solutions of pollution monitoring and fresh air for fitness center - gym.

Air Quality Solutions for Parking Lot

A complete solution for air monitoring, data analysis, and fresh air solutions for enclosed car parking areas and car lots.

Air Quality Solutions for Retail Stores

Prana Air provides air quality solutions of pollution monitoring and fresh air for retail stores and shopping outlets.

Prana Air provides air quality solutions of pollution monitoring and fresh air for retail stores and shopping outlets

Prana Air provides the air quality solutions for airport. Gathering of many passengers is the main reasons of bad air quality in airport.

Air Quality Solutions For Construction Sites

Prana Air offers air quality monitoring solutions for construction sites with data cloud storage, web-dashboard, mobile apps, TV display.

Air Quality Solutions For Hospitals

Prana Air provides air quality monitoring and fresh air solutions for hospitals to ensure clean and healthy indoor air.

Air Quality Solutions For Washroom | Bathroom

Improve washroom and bathroom air quality with Prana Air air quality monitoring devices and fresh air machine. Breathe easy and stay healthy.

Air Quality Solutions for Banks

Prana Air provides air quality solutions of pollution monitoring and fresh air for banks and financial institutions.

Air Quality Solutions for Cinema

Air quality solutions for cinema halls or theatres will help the customers to get the good experience, comfort and breathe clean air.

Air Quality Solutions For Real Estates

Prana Air provides the air quality solutions of pollution monitoring and fresh air for real estates - residential and commercial.

Toronto's AQI Data Analytics Solutions
Air quality data monitoring platforms

Mobile App

Smart TV App

Web Dashboard

API

Widgets

Air Quality FAQs
at Toronto

Frequently Asked Questions About Air Quality

1. What is the current AQI (US) level in Toronto?

The current real-time AQI (US) level in Toronto is 59 (Moderate). This was last updated 2026-07-18 18:31 (Local Time).

2. When was the best AQI (US) level in Toronto in the last 24 hours?

The best AQI (US) level was 52 (Moderate) at 4:01 PM (Local Time) during the last 24 hours.

3. When was the worst AQI (US) level in Toronto in the last 24 hours?

The worst AQI (US) level was 126 (Poor) at 7:31 AM (Local Time) during the last 24 hours.

4. What is the current trend of AQI (US) levels in Toronto during last 24 hours?

The AQI (US) levels in Toronto have been fluctuating throughout the last 24 hours. The levels have increased by highest 126 at 7:31 AM (Local Time), lowest 52 at 4:01 PM (Local Time).

5. What actions are recommended as per the current AQI (US) level in Toronto?

Current AQI (US) levels are acceptable; however, some pollutants may be a concern for a small number of sensitive individuals.