Annual Air Pollutant Statistics

This dataset provides a summary of annual air pollution statistics from 1995 to the current available year for six air pollutants: * Carbon Monoxide * Oxides of Nitrogen (NO, NO2, NOx) * Ozone * Fine Particulate Matter (PM2.5) * Sulphur Dioxide * Total Reduced Sulphur The annual statistics include percentiles, mean, maximums and also indicate the number of times an air monitoring station exceeded an Ontario annual ambient air quality criteria, where applicable. This information is also available in the annual Air Quality in Ontario Reports. The hourly air pollutant concentration data is posted in near real time on the Air Quality Ontario website: http://www.airqualityontario.com/

Données et ressources

Info additionnelle

Champ	Valeur
Dernière modification	avril 17, 2026, 21:39 (TU)
Créé le	avril 17, 2026, 21:39 (TU)
contact_person	{"en": "Environment, Conservation and Parks", "fr": "Environment, Conservation and Parks"}
criticality_level	[]
data_dictionary	["economy"]
geographic_scope	[]
open_canada_collection	federated
open_canada_date_published	2021-04-08 00:00:00
open_canada_keywords	{"en": ["air quality", "air pollution", "annual data summary", "ozone", "nitrogen dioxide", "nitric oxides", "PM2.5", "sulphur dioxide", "carbon dioxide", "total reduced sulphur", "O3", "NO2", "NO", "NOx", "SO2", "CO", "TRS", "equity"], "fr-t-en": ["la pollution de l'air", "STATISTIQUES SOMMAIRES SUR LES POLLUANTS ATMOSPHÉRIQUES", "OZONE", "DIOXYDE D'AZOTE", "OXYDE NITRIQUE", "OXYDES NITRIQUES", "PARTICULES FINES", "DIOXYDE DE SOUFRE", "MONOXYDE DE CARBONE", "COMPOSÉS DE SOUFRE RÉDUIT TOTAL", "O3", "NO2", "NO", "NOx", "SO2", "CO", "SRT", "équité"]}
open_canada_subject	["government_and_politics"]
sensitivity_level	unrestricted
title_fr	Statistiques annuelles sur la pollution atmosphérique
update_frequency	P1Y