Air Quality Index - Poor and Very Poor Hours, Alberta

This Alberta Official Statistic summarizes annual results of calculations of air quality index values as calculated by quality-assured and quality-controlled hourly ambient air quality data. It reports the number of hours of Poor and Very Poor air quality. It also includes an overview of the index, the substances that are used in its calculation, and the causes of poor air quality both in a general sense, and with specific reference to actual events in the years presented.

Data and Resources

Additional Info

Field	Value
Last Updated	April 17, 2026, 22:07 (UTC)
Created	April 17, 2026, 22:07 (UTC)
contact_email	osi.support@gov.ab.ca
contact_person	{"en": "Environment and Parks", "fr": "Environment and Parks"}
criticality_level	[]
data_dictionary	["environment"]
geographic_scope	[]
open_canada_collection	federated
open_canada_date_published	2013-05-28 00:00:00
open_canada_keywords	{"en": ["AOS", "Alberta Official Statistics", "carbon monoxide", "fine particulate matter PM25", "monitoring", "nitrogen dioxide NO2", "official statistics", "ozone O3", "photochemical inversion", "smog - pollution - stagnant", "sulphur dioxide SO2"], "fr-t-en": ["AOS", "Statistiques officielles de l'Alberta", "monoxyde de carbone", "particules fines PM25", "surveillance", "dioxyde d'azote NO2", "statistiques officielles", "ozone O3", "inversion photochimique", "smog - pollution - stagnation", "dioxyde de soufre SO2"]}
open_canada_subject	["nature_and_environment"]
sensitivity_level	unrestricted
title_fr
update_frequency	P1Y