Air Pollution in Trudeau: Real-time Air Quality Index and smog alert.

Current data from stations: Aéroport de Montr��al

Locations: « Dorval Trudeau

Pollution and air quality forecast for Trudeau. Today is Friday, May 2, 2025. The following air pollution values have been recorded for Trudeau:

ozone (O3) - 0 (Good)
particulate matter (PM2.5) dust - 45 (Unhealthy for Sensitive Groups)
nitrogen dioxide (NO2) - 0 (Good)

Real-time Air Quality Index (AQI) for Trudeau, Saturday, July 1, 2023: 3.

AQI 3 Unhealthy for Sensitive Groups

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

Today (Saturday, July 1, 2023) air quality is moderately polluted in Trudeau. Healthy people may experience slight irritations and sensitive persons will be slightly affected to a larger extent by the pollutions in Trudeau.

How is the O3 level today in Trudeau? (ozone (O3))
0 (Good)

What is the current level of PM2.5 in Trudeau? (particulate matter (PM2.5) dust)
Today's PM2.5 level is: 45 (Unhealthy for Sensitive Groups) For comparison, the highest level of PM2.5 in Trudeau in the last 7 days was: 40 (Saturday, July 1, 2023) and the lowest: 11 (Monday, July 3, 2023). The highest PM2.5 values were recorded: 11 (February 2020). The lowest level of particulate matter PM2.5 pollution occurs in month: May (3.2).

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

Current data Saturday, July 1, 2023, 10:00 PM

O3 0 (Good)

PM2,5 45 (Unhealthy for Sensitive Groups)

NO2 0 (Good)

Data on air pollution from recent days in Trudeau

index	2023-07-06	2023-07-05	2023-07-03	2023-07-04	2023-07-02	2023-07-01
o3	0 Good	0 Good	0 Good	0 Good	0 Good	0 Good
pm25	12 Good	13 Moderate	11 Good	15 Moderate	19 Moderate	40 Unhealthy for Sensitive Groups
no2	0 Good	0 Good	0 Good	0 Good	0 Good	0 Good

data source »

pollution pm25 hikersbay.com — Air pollution in Trudeau from November 2018 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
co:ppm	0.14 (Good)	0.16 (Good)	0.2 (Good)	0.25 (Good)	0.24 (Good)	0.2 (Good)	0.19 (Good)	0.19 (Good)	0.18 (Good)	0.17 (Good)	0.18 (Good)	0.16 (Good)	0.17 (Good)	0.18 (Good)	0.22 (Good)	0.23 (Good)	0.23 (Good)	0.25 (Good)	0.21 (Good)
no2:ppm	0 (Good)	0.01 (Good)	0.01 (Good)	0.02 (Good)	0.02 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)
o3:ppm	0.03 (Good)	0.03 (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)	0.03 (Good)	0.03 (Good)	0.03 (Good)	0.03 (Good)	0.03 (Good)	0.02 (Good)	0.02 (Good)	0.02 (Good)
pm25	3.2 (Good)	4.7 (Good)	6.3 (Good)	11 (Good)	8.1 (Good)	6.7 (Good)	6.9 (Good)	6 (Good)	5.3 (Good)	5.7 (Good)	8.3 (Good)	5.7 (Good)	4.6 (Good)	4.5 (Good)	7.4 (Good)	7.4 (Good)	8.4 (Good)	9.5 (Good)	6.1 (Good)

data source »

Aéroport de Montr��al

Saturday, July 1, 2023, 10:00 PM

O3 0.04 (Good)

ozone (O3)

PM2,5 45 (Unhealthy for Sensitive Groups)

particulate matter (PM2.5) dust

NO2 0.02 (Good)

nitrogen dioxide (NO2)

Aéroport de Montr��al

index	2023-07-01	2023-07-02	2023-07-04	2023-07-03	2023-07-05	2023-07-06
o3	0.03	0.04	0.04	0.04	0.03	0.04
pm25	40	19	15	11	13	12
no2	0.01	0	0.01	0.01	0.01	0.01

Aéroport de Montréal

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
co:ppm	0.14	0.16	0.2	0.25	0.24	0.2	0.19	0.19	0.18	0.17	0.18	0.16	0.17	0.18	0.22	0.23	0.23	0.25	0.21
no2:ppm	0	0.01	0.01	0.02	0.02	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01
o3:ppm	0.03	0.03	0.03	0.02	0.02	0.02	0.02	0.02	0.02	0.03	0.03	0.03	0.03	0.03	0.03	0.03	0.02	0.02	0.02
pm25	3.2	4.7	6.3	11	8.1	6.7	6.9	6	5.3	5.7	8.3	5.7	4.6	4.5	7.4	7.4	8.4	9.5	6.1

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