Air quality

The Canadian Environmental Sustainability Indicators (CESI) program provides data and information to track Canada's performance on key environmental sustainability issues. The Air quality indicators track ambient concentrations of fine particulate matter, ground-level ozone, sulphur dioxide, nitrogen dioxide, and volatile organic compounds at the national and regional levels as well as at local monitoring stations. The national and regional indicators are presented with their corresponding Canadian Ambient Air Quality Standard when available. Canadians are exposed to air pollutants on a daily basis, and this exposure can cause adverse health and environmental effects. Information is provided to Canadians in a number of formats including: static and interactive maps, charts and graphs, HTML and CSV data tables and downloadable reports. See the supplementary documentation for the data sources and details on how the data were collected and how the indicator was calculated.

Canadian Environmental Sustainability Indicators: https://www.canada.ca/environmental-indicators

Data and Resources

Additional Info

Field Value
Last Updated April 17, 2026, 17:24 (UTC)
Created April 17, 2026, 17:24 (UTC)
contact_email enviroinfo@ec.gc.ca
contact_person {"en": "Government of Canada; Environment and Climate Change Canada; Public Inquiries Centre, , enviroinfo@ec.gc.ca", "fr": "Gouvernement du Canada; Environnement et Changement climatique Canada; Centre de renseignement à la population, , enviroinfo@ec.gc.ca"}
criticality_level []
data_dictionary []
geographic_scope ["0"]
open_canada_collection primary
open_canada_date_published 2026-01-29 05:00:00
open_canada_keywords {"en": ["Air quality", "Atmospheric emissions", "Environmental indicators", "Pollutants", "Air pollution", "Sustainable development", "environmental indicators", "air and climate", "air quality", "ambient levels", "air pollutants", "fine particulate matter", "ozone", "nitrogen dioxide", "sulfur dioxide", "volatile organic compounds", "average concentrations", "peak concentrations", "national", "regional", "Canadian Ambient Air Quality Standards", "Monitoring Station"], "fr": ["Qualité de l'air", "Émissions atmosphériques", "Indicateur environnemental", "Polluant", "Pollution atmosphérique", "Développement durable", "indicateurs environnementaux", "air et climat", "qualité de l'air", "niveaux ambiants", "polluants atmosphériques", "particules fines", "ozone", "dioxyde d'azote", "dioxyde de soufre", "composés organiques volatils", "concentrations moyennes", "concentrations de pointe", "nationale", "régionale", "Normes canadiennes de qualité de l'air ambiant", "Station de surveillance"]}
open_canada_subject ["nature_and_environment"]
sensitivity_level unrestricted
title_fr Qualité de l'air
update_frequency P1Y