Smog in Quebec — Live Data: AQI, Fine Dust, Wind, UV and Health Advice

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Latest air quality data: Quebec

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Pollution and air quality forecast for Québec. Today is Thursday, August 27, 2026. The following air pollution values have been recorded for Québec:

particulate matter (PM2.5) dust - 11 (Good)
particulate matter (PM10) suspended dust - 11 (Good)
ozone (O3) - 48 (Good)
nitrogen dioxide (NO2) - 23 (Good)
sulfur dioxide (SO2) - 3 (Good)
carbon monoxide (CO) - 678 (Good)

Real-time Air Quality Index (AQI) for Québec, Wednesday, August 26, 2026: 1.

AQI 1 Good

What is the air quality in Québec today? Is the air polluted in Québec?. Is there smog?

Today (Wednesday, August 26, 2026) air quality is good. The air quality has no effect on health. Everyone can continue their outdoor activities normally in Québec.

What is the current level of PM2.5 in Québec? (particulate matter (PM2.5) dust)
Today's PM2.5 level is: 11 (Good) For comparison, the highest level of PM2.5 in Québec in the last 7 days was: 12 (Friday, August 21, 2026) and the lowest: 4 (Sunday, August 23, 2026).

What is the level of PM10 today in Québec? (particulate matter (PM10) suspended dust)
The current level of particulate matter PM10 in Québec is: 11 (Good)

How is the O3 level today in Québec? (ozone (O3))
48 (Good)

How high is the level of NO2? (nitrogen dioxide (NO2))
23 (Good)

What is the level of SO2 pollution? (sulfur dioxide (SO2))
3 (Good)

How high is the CO level? (carbon monoxide (CO))
678 (Good)

Current data Wednesday, August 26, 2026 at 9:00 PM

PM2,5 11 (Good)

PM10 11 (Good)

O3 48 (Good)

NO2 23 (Good)

SO2 3 (Good)

CO 678 (Good)

Data on air pollution from recent days in Québec

index	2026-08-26	2026-08-25	2026-08-24	2026-08-23	2026-08-22	2026-08-21	2026-08-20	2026-08-19
pm25	10 Good	11 Good	7 Good	4 Good	8 Good	12 Good	9 Good	11 Good
pm10	10 Good	11 Good	7 Good	4 Good	8 Good	13 Good	9 Good	11 Good
o3	48 Good	54 Good	54 Good	49 Good	44 Good	43 Good	49 Good	58 Good
no2	14 Good	14 Good	9 Good	5 Good	12 Good	14 Good	11 Good	15 Good
so2	2 Good	3 Good	2 Good	1 Good	2 Good	2 Good	2 Good	4 Good
co	344 Good	379 Good	241 Good	132 Good	230 Good	268 Good	256 Good	362 Good

data source »

Air pollution in Québec from March 2016 to May 2020

index	2020-05	2020-04	2020-03	2020-02	2020-01	2019-12	2019-11	2019-10	2019-09	2019-08	2019-07	2019-06	2019-05	2019-04	2019-03	2019-02	2019-01	2018-12	2018-11	2018-10	2018-09	2018-08	2018-07	2018-06	2018-05	2018-04	2018-03	2018-02	2018-01	2017-12	2017-11	2017-10	2017-09	2017-08	2017-07	2017-06	2017-05	2017-04	2016-09	2016-08	2016-05	2016-04	2016-03
o3:ppm	0.03 (Good)	0.03 (Good)	0.03 (Good)	0.02 (Good)	0.02 (Good)	0.02 (Good)	0.02 (Good)	0.01 (Good)	0.02 (Good)	0.02 (Good)	0.02 (Good)	0.02 (Good)	0.03 (Good)	0.03 (Good)	0.03 (Good)	0.03 (Good)	0.03 (Good)	0.02 (Good)	0.02 (Good)	0.01 (Good)	0.02 (Good)	0.02 (Good)	0.02 (Good)	0.03 (Good)	0.03 (Good)	0.03 (Good)	0.04 (Good)	0.03 (Good)	0.02 (Good)	0.03 (Good)	0.02 (Good)	0.02 (Good)	0.02 (Good)	0.02 (Good)	0.02 (Good)	0.02 (Good)	0.03 (Good)	0.03 (Good)	0.01 (Good)	0.03 (Good)	0.03 (Good)	0.03 (Good)	0.03 (Good)

data source »

Quality of life in Québec

Green and Parks in the City

Québec 67%

United States: 70% Venezuela: 41% Iceland: 72%

particulate matter PM2.5

Québec 9 (Good)

Pleasure of spending time in the city

Québec 71%

United States: 75% The Bahamas: 53% Venezuela: 41% Iceland: 89%

particulate matter PM10

Québec 16 (Good)

Air Pollution

Québec 31%

United States: 29% The Bahamas: 52% Venezuela: 59% Iceland: 13%

Garbage Disposal

Québec 63%

United States: 71% The Bahamas: 29% Venezuela: 18% Iceland: 79%

Availability and quality of drinking water

Québec 77%

United States: 71% The Bahamas: 55% Venezuela: 28% Iceland: 96%

Cleanliness and tidiness

Québec 63%

United States: 60% The Bahamas: 35% Venezuela: 22% Iceland: 75%

Noise and Light pollution

Québec 62%

United States: 47% The Bahamas: 39% Venezuela: 47% Iceland: 23%

Water Pollution

Québec 52%

United States: 44% The Bahamas: 58% Venezuela: 76% Iceland: 8.4%

Source: Numbeo

Quebec

Wednesday, August 26, 2026 at 9:00 PM

PM2,5 11 (Good)

particulate matter (PM2.5) dust

PM10 11 (Good)

particulate matter (PM10) suspended dust

O3 48 (Good)

ozone (O3)

NO2 23 (Good)

nitrogen dioxide (NO2)

SO2 3 (Good)

sulfur dioxide (SO2)

CO 678 (Good)

carbon monoxide (CO)

Quebec

index	2026-08-19	2026-08-20	2026-08-21	2026-08-22	2026-08-23	2026-08-24	2026-08-25	2026-08-26
pm25	11	8.6	12	8.2	4.1	7	11	10
pm10	11	8.7	13	8.3	4.2	7.1	11	10
o3	58	49	43	44	49	54	54	48
no2	15	11	14	12	5	9.3	14	14
so2	4.1	2.3	1.9	1.7	1.3	2.1	3.1	2.3
co	362	256	268	230	132	241	379	344

Des Sables

index	2020-05	2020-04	2020-03	2020-02	2020-01	2019-12	2019-11	2019-10	2019-09	2019-08	2019-07	2019-06	2019-05	2019-04	2019-03	2019-02	2019-01	2018-12	2018-11	2018-10	2018-09	2018-08	2018-07	2018-06	2018-05	2018-04	2018-03	2018-02	2018-01	2017-12	2017-11	2017-10	2017-09	2017-08	2017-07	2017-06	2017-05	2017-04	2016-09	2016-08	2016-05	2016-04	2016-03
o3:ppm	0.03	0.03	0.03	0.02	0.02	0.02	0.02	0.01	0.02	0.02	0.02	0.02	0.03	0.03	0.03	0.03	0.03	0.02	0.02	0.01	0.02	0.02	0.02	0.03	0.03	0.03	0.04	0.03	0.02	0.03	0.02	0.02	0.02	0.02	0.02	0.02	0.03	0.03	0.01	0.03	0.03	0.03	0.03

* Pollution data source: https://openaq.org (AirNow) The data is licensed under CC-By 4.0

🌦️ Weather · 16-day Forecast — Canada

16-day weather forecast for Canada: today around 22°C (rain), lows near 15°C. Daily temperature and conditions, updated every day. Strong wind (about 21 km/h) is actively clearing smog and dust away.

☀️ UV Index · 16-day Forecast — Canada

The UV index in Canada today is 5.2 (moderate) — unprotected fair skin can burn in about 40 minutes.

📍 Air quality in nearby cities

Live PM2.5 around Quebec — compare nearby locations.

Montréal 11 µg/m³
Ottawa 6 µg/m³
Halifax 9 µg/m³
Oshawa 3 µg/m³
Toronto 7 µg/m³
Vancouver 10 µg/m³
Calgary 8 µg/m³
Edmonton 7 µg/m³

Frequently asked questions

Is the air safe to breathe in Québec today?

The current average PM2.5 across Québec is about 11 µg/m³, rated “Good”. Air quality is good — outdoor activities are fine for everyone.

What is the current PM2.5 level in Québec?

Right now PM2.5 in Québec averages about 11 µg/m³ (“Good”). PM2.5 are fine particles small enough to reach the lungs and bloodstream.

Which day last week had the worst air in Québec?

Over the past week, the highest daily PM2.5 in Québec was recorded on Friday, August 21 (about 12 µg/m³).

What is the UV index in Québec today?

The UV index in Québec today is 5.2 (moderate) — unprotected fair skin can burn in about 40 minutes.

Does today's wind help disperse smog in Québec?

Strong wind (about 21 km/h) is actively clearing smog and dust away.

How is air quality measured?

Air quality here is based on PM2.5 — the concentration of fine particulate matter in µg/m³. Lower values mean cleaner air. Data is updated daily from Open-Meteo.