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Hamilton Air Quality Index (AQI) | Air Pollution

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

Last Updated: 2026-09-27 11:11 (Local Time)

Live AQI

46AQI (US)

Air Quality is

Good

PM2.5 : 11 µg/m³

pm10 : 19 µg/m³

Good

050

Moderate

100

Poor

150

Unhealthy

200

Severe

300

Hazardous

301+

18 °C

Last Updated: 2026-09-27 11:11 (Local Time)

Presently, Hamilton ranks for having the good air quality among cities worldwide.

Map

Hamilton

Major Air Pollutants
Hamilton

Particulate Matter(PM₂.₅)

11µg/m³

Particulate Matter(PM₁₀)

19µg/m³

Carbon Monoxide(CO)

316ppb

Sulfur Dioxide(SO₂)

2ppb

Nitrogen Dioxide(NO₂)

5ppb

Ozone(O₃)

21ppb

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AQI Graph

Historical Air Quality Data
Hamilton

24 Hours

AQI (US)

Hamilton

AQI (US)

26-09-2026Time27-09-2026

Time	Hamilton
11:31am	37
12:01pm	33
12:31pm	25
1:01pm	27
1:31pm	32
2:01pm	40
2:31pm	55
3:01pm	55
3:31pm	40
4:01pm	35
4:31pm	26
5:01pm	26
5:31pm	24
6:01pm	24
6:31pm	22
7:01pm	23
7:31pm	26
8:01pm	36
8:31pm	36
9:01pm	41
9:31pm	28
10:01pm	28
10:31pm	23
11:01pm	22
11:31pm	22
12:01am	23
12:31am	26
1:01am	32
1:31am	37
2:01am	36
2:31am	40
3:01am	37
3:31am	31
4:01am	31
4:31am	31
5:01am	40
5:31am	39
6:01am	46
6:31am	46
7:01am	55
7:31am	58
8:01am	56
8:31am	60
9:01am	54
9:31am	54
10:01am	56
10:31am	54
11:01am	47
11:31am	50
12:01pm	63
12:31pm	60
1:01pm	60
1:31pm	67
2:01pm	58
2:31pm	58
3:01pm	58
3:31pm	56
4:01pm	46

Min. AQI (US)6:31pm

Max. AQI (US)1:31pm

Want air quality data?

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

AQI (US)

Hamilton's Locations
Real-time Air Pollution Level

locations

Status

AQI (US)

PM₂.₅(µg/m³)

PM₁₀(µg/m³)

Temp.(°C)

Humi.(%)

Good

Good

Good

Good

Good

Good

Good

Canada's Metro Cities
Air Quality Index

Calgary

Edmonton

Halifax

Montreal

Ottawa

Vancouver

Windsor

Winnipeg

Air Quality Calendar 2026
Hamilton

2026

AQI (US)

Health Advice For People Living In
Hamilton

0Cigarettes per day

Weekly 0 Cigarettes

Monthly 0 Cigarettes

Breathe easy and get active! The air quality is perfect for enjoying outdoor activities.

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 Off

Car FilterAdvisable

N95 MaskAdvisable

Stay IndoorAdvisable

Prevent Health Problems: Understand Your Risks

Hamilton

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

Charlemagne, Quebec

Moderate

1xequal Standard

Trois Rivieres, Quebec

Moderate

1xequal Standard

Bathurst, New Brunswick

Moderate

1xequal Standard

Saint John, New Brunswick

Moderate

1xequal Standard

Montreal, Quebec

Moderate

1xequal Standard

Terrebonne, Quebec

Moderate

1xequal Standard

Mont Royal, Quebec

Moderate

1xequal Standard

Laval, Quebec

Moderate

1xequal Standard

Longueuil, Quebec

Moderate

1xequal Standard

10.

Cornwall, Ontario

Moderate

1xequal Standard

Last Updated: 27 Sept 2026, 03:19 PM

AQI City Rankings

Air Quality Solutions For Hamilton
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 Hamilton

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.

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

Mobile App

Smart TV App

Web Dashboard

API

Widgets

Air Quality FAQs
at Hamilton

Frequently Asked Questions About Air Quality

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

The current real-time AQI (US) level in Hamilton is 46 (Good). This was last updated 2026-09-27 11:11 (Local Time).

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

The best AQI (US) level was 22 (Good) at 6:31 PM, Sep 26, 2026 (Local Time) during the last 24 hours.

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

The worst AQI (US) level was 67 (Moderate) at 1:31 PM (Local Time) during the last 24 hours.

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

The AQI (US) levels in Hamilton have been fluctuating throughout the last 24 hours. The levels have increased by highest 67 at 1:31 PM (Local Time), lowest 22 at 6:31 PM, Sep 26, 2026 (Local Time).

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

The air quality is satisfactory, and air pollution poses little or no risk. No special precautions are needed; enjoy outdoor activities freely.