Quebec inventory of emissions of the main air contaminants

The inventory of emissions of main air contaminants (PCA) lists anthropogenic emissions of these contaminants into the atmosphere at the level of Quebec beginning in 1990. The Ministry of the Environment, the Fight against Climate Change, Wildlife and Parks produces this inventory to highlight the importance and evolution of emissions of air contaminants, which contribute to acid rain, smog and toxic pollution. This inventory includes:

  • Volatile organic compounds (VOCs);
  • Sulfur dioxide (SO2);
  • Carbon monoxide (CO);
  • Nitrogen oxides (NOx);
  • Fine particles (PM2.5);
  • Respirable particles (PM10);
  • Total filterable particles (PM).

This dataset shows PCA emissions in Quebec from the most recent inventory, by sector, sub-sector and activity category by year since 1990. This inventory is available on this page: https://www.environnement.gouv.qc.ca/air/inventaire/index.htm.

Data and Resources

Additional Info

Field Value
Last Updated April 17, 2026, 21:59 (UTC)
Created April 17, 2026, 21:59 (UTC)
contact_email declaration.atmosphere@environnement.gouv.qc.ca
contact_person {"en": "Ministère de l’Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs", "fr": "Ministère de l’Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs"}
criticality_level []
data_dictionary ["environment"]
geographic_scope []
open_canada_collection federated
open_canada_date_published 2023-03-01 00:00:00
open_canada_keywords {"en-t-fr": ["Volatile organic compound", "Air contaminant", "Nitrogen dioxide", "Sulfur dioxide", "Nitrogen monoxide", "Carbon monoxide", "Fine particle", "Breathable particle", "Total particle", "Acid rain", "Gaseous pollutant", "Particulate pollutant", "Pollution", "Smog"], "fr": ["Composé organique volatil", "Contaminant atmosphérique", "Dioxyde azote", "Dioxyde de soufre", "Monoxyde azote", "Monoxyde de carbone", "Particule fine", "Particule respirable", "Particule totale", "Pluie acide", "Polluant gazeux", "Polluant particulaire", "Pollution", "Smog"]}
open_canada_subject ["nature_and_environment"]
sensitivity_level unrestricted
title_fr Inventaire québécois des émissions des principaux contaminants atmosphériques
update_frequency P1Y