Ministère de l'Environnement
et de la Lutte contre les changements climatiques
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Monitoring Reports on Canadian Ambient Air Quality Standards

2019 and 2020 reports

The annual reports on Canadian Ambient Air Quality Standards (CAAQS) describe the concentrations of ozone and fine particulate matter measured in the ambient air in Québec from 2016 to 2019.

Data from 46 air quality monitoring stations were used to produce the report. The stations are located in Québec’s three Air Management Zones (AMZs).

From 2016 to 2019, all the stations achieved the annual CAAQS in terms of fine particulate matter, as was the case since 2015-2017. All the stations achieved the daily CAAQS since 2013-2015.

Ozone values at all the stations achieved the CAAQS, as was the case for 2012-2014.

The South AMZ is experiencing the most impacts. As home to almost 90% of Québec’s population, it has the highest density of air emission sources. In addition, it is affected by emission sources situated outside Québec. Furthermore, the only CAAQS value exceedances observed are from air quality stations in this AMZ. The North and East AMZs, which each have only one reporting station, show better air quality than the South AMZ

Report 2020 (French PDF, 2.7 MB)
Reference: Ministère de l'Environnement et de la Lutte contre les changements climatiques (MELCC), 2021. 2020 Progress Report Relative to Canadian Ambient Air Quality Standards, Québec, Direction de l'information sur le milieu atmosphérique, ISBN 978-2-550-89470-4 (PDF), 12 pages, in French.

Report 2019 (French PDF, 2.7 MB)
Reference: Ministère de l'Environnement et de la Lutte contre les changements climatiques (MELCC), 2021. 2019 Progress Report Relative to Canadian Ambient Air Quality Standards, Québec, Direction de l'information sur le milieu atmosphérique, ISBN 978-2-550-89469-8 (PDF), 12 pages, in French.

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