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Downtown Air Quality Index (AQI) | Air Pollution

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

Last Updated: 2026-07-23 20:51:02 (Local Time)

Live AQI

172AQI (US)

Air Quality is

Unhealthy

PM2.5 : 97 µg/m³

pm10 : 107 µg/m³

Good

050

Moderate

100

Poor

150

Unhealthy

200

Severe

300

Hazardous

301+

24 °C

Last Updated: 2026-07-23 20:51:02 (Local Time)

Rank2^nd

Currently, Calgary ranks 2^nd among the most polluted cities globally.

Map

Downtown

Major Air Pollutants
Downtown

Particulate Matter(PM₂.₅)

97µg/m³

Particulate Matter(PM₁₀)

107µg/m³

Carbon Monoxide(CO)

191ppb

Sulfur Dioxide(SO₂)

1ppb

Nitrogen Dioxide(NO₂)

6ppb

Ozone(O₃)

40ppb

AQI Graph

Historical Air Quality Data
Downtown

24 Hours

AQI (US)

Downtown

AQI (US)

22-07-2026Time23-07-2026

Time	Downtown
9:01pm	104
9:31pm	114
10:01pm	101
10:31pm	99
11:01pm	111
11:31pm	104
12:01am	104
12:31am	104
1:01am	109
1:31am	88
2:01am	90
2:31am	101
3:01am	99
3:31am	109
4:01am	109
4:31am	106
5:01am	106
5:31am	106
6:01am	93
6:31am	104
7:01am	106
7:31am	106
8:01am	114
8:31am	106
9:01am	114
9:31am	106
10:01am	109
10:31am	109
11:01am	119
11:31am	106
12:01pm	114
12:31pm	126
1:01pm	114
1:31pm	116
2:01pm	116
2:31pm	116
3:01pm	124
3:31pm	119
4:01pm	134
4:31pm	136
5:01pm	134
5:31pm	149
6:01pm	136
6:31pm	146
7:01pm	139
7:31pm	154
8:01pm	160
8:31pm	158

Min. AQI (US)1:31am

160

Max. AQI (US)8:01pm

Want air quality data?

AQI (US) Trends - Annual Air Quality Changes
Downtown, Calgary, Alberta, Canada

AQI (US)

Canada's Metro Cities
Air Quality Index

Calgary

176

Edmonton

Halifax

Montreal

Toronto

Vancouver

Windsor

Winnipeg

Air Quality Calendar 2026
Downtown

2026

AQI (US)

Health Advice For People Living In
Downtown

1.9Cigarettes per day

Weekly 13.3 Cigarettes

Monthly 57 Cigarettes

Breathing the air in this location is as harmful as smoking 1.9 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

Downtown

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

Calgary, Alberta

Unhealthy

7xabove Standard

Vernon, British Columbia

Unhealthy

6xabove Standard

Airdrie, Alberta

Unhealthy

6xabove Standard

Kamloops, British Columbia

Unhealthy

6xabove Standard

Trail, British Columbia

Unhealthy

5xabove Standard

Castlegar, British Columbia

Unhealthy

4xabove Standard

Lethbridge, Alberta

Unhealthy

4xabove Standard

Medicine Hat, Alberta

Poor

3xabove Standard

Red Deer, Alberta

Poor

3xabove Standard

10.

Edson, Alberta

Poor

3xabove Standard

Last Updated: 24 Jul 2026, 12:51 AM

AQI City Rankings

Air Quality Solutions For Downtown
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 Downtown

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.

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

Mobile App

Smart TV App

Web Dashboard

API

Widgets

Air Quality FAQs
at Downtown

Frequently Asked Questions About Air Quality

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

The current real-time AQI (US) level in Downtown is 172 (Unhealthy). This was last updated 2026-07-23 20:51:02 (Local Time).

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

The best AQI (US) level was 88 (Moderate) at 1:31 AM, Jul 23, 2026 (Local Time) during the last 24 hours.

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

The worst AQI (US) level was 160 (Unhealthy) at 8:01 PM, Jul 23, 2026 (Local Time) during the last 24 hours.

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

The AQI (US) levels in Downtown have been fluctuating throughout the last 24 hours. The levels have increased by highest 160 at 8:01 PM, Jul 23, 2026 (Local Time), lowest 88 at 1:31 AM, Jul 23, 2026 (Local Time).

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

Current AQI (US) levels are unhealthy for everyone. It's advised to limit outdoor activities and consider using air purifiers indoors.