Air quality – Peak ozone concentrations at monitoring stations

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, regional and urban levels and 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

Données et ressources

Info additionnelle

Champ	Valeur
Dernière modification	avril 17, 2026, 18:08 (TU)
Créé le	avril 17, 2026, 18:08 (TU)
contact_email	Indicateurs-indicators@ec.gc.ca
contact_person	{"en": "Government of Canada; Environment and Climate Change Canada; Canadian Environmental Sustainability Indicators,indicateurs-indicators@ec.gc.ca", "fr": "Gouvernement du Canada; Environnement et Changement climatique Canada; Indicateurs canadiens de durabilité de l'environnement,Indicateurs-indicators@ec.gc.ca"}
criticality_level	[]
data_dictionary	["climatology_meterology_atmosphere", "environment", "health", "location", "society"]
geographic_scope	[]
open_canada_collection	fgp
open_canada_date_published	2024-06-27 00:00:00
open_canada_keywords	{"en": ["environmental indicators; air; air quality; monitoring; facility; ground-level ozone", "Environment", "Sustainable development", "Environmental indicators", "Atmospheric emissions", "Air pollution", "Quality standards", "Pollutants", "1.3.1. Sustainability Reporting and Indicators", "Unclassified"], "fr": ["indicateurs environnementaux; air; qualité de l'air; installation; suivi; ozone troposphérique", "Environnement", "Développement durable", "Indicateur environnemental", "Émissions atmosphériques", "Pollution atmosphérique", "Norme de qualité", "Polluant", "1.3.1 Rapports axés sur le développement durable et indicateurs", "Non Classifié"]}
open_canada_subject	["form_descriptors", "health_and_safety", "nature_and_environment", "society_and_culture", "science_and_technology"]
sensitivity_level	unrestricted
title_fr	Qualité de l'air – Concentrations de pointe d’ozone aux stations de surveillance
update_frequency	as_needed