Canada's Air Pollutant Emissions Inventory

The Air Pollutant Emission Inventory (APEI) is an annual report of air pollutant emissions across Canada published by Environment and Climate Change Canada. The report details the release of air pollutants from all known of sources since 1990. The APEI serves many purposes, including:

  • supporting the development of and tracking progress on air quality management strategies, policies and regulations

  • fulfilling Canada’s domestic and international reporting obligations

  • informing Canadians about air pollutants emissions

  • providing data to support Canada’s air quality health indices

Emissions data is available for the following:

Criteria air contaminants (CACs):

  • Total particulate matter (TPM)

  • Particulate matter less than or equal to 10 microns (PM10)

  • Particulate matter less than or equal to 2.5 microns (PM2.5)

  • Sulphur oxides (SOx)

  • Nitrogen oxides (NOx)

  • Volatile organic compounds (VOCs)

  • Carbon monoxide (CO)

  • Ammonia (NH3)

Heavy metals:

  • Mercury (Hg)

  • Lead (Pb)

  • Cadmium (Cd)

Persistent organic pollutants (POPs):

  • Dioxins and furans (D/F)

  • Four polycyclic aromatic hydrocarbons (PAHs) compounds (Benzo[a]pyrene, Benzo[b]fluoranthene, Benzo[k]fluoranthene and Indeno[1,2,3-cd]pyrene)

  • Hexachlorobenzene (HCB)

This data record breaks down the historical trends of reported pollutants by individual substances. To perform more customized selections of APEI data, please visit our website to use our interactive query tool.

The Air Pollutant Emission Inventory is compiled from many different data sources. Emissions data reported by individual facilities to Environment and Climate Change Canada’s National Pollutant Release Inventory are supplemented with well documented, science-based estimation tools to quantify total emissions. Together these data sources provide a comprehensive overview of pollutant emissions across Canada.

Supplemental Information

Air Pollutants Inventory Main Page:

https://Canada.ca/APEI

APEI and Black Carbon Interactive Query Tool:

https://pollution-waste.canada.ca/air-emission-inventory/

Canada's Black Carbon Emission Inventory:

https://Canada.ca/black-carbon

Supporting Projects: National Air Pollutant Emissions Trends for 1990–2022

Datasets available for download

Additional Info

Field Value
Last Updated October 22, 2024, 16:04 (UTC)
Created October 1, 2024, 07:42 (UTC)
Domain / Topic
Domain or topic of the dataset being cataloged.
Format (CSV, XLS, TXT, PDF, etc)
File format of the dataset.
Dataset Size
Dataset size in megabytes.
Metadata Identifier
Metadata identifier – can be used as the unique identifier for catalogue entry
Published Date
Published date of the dataset.
2024-03-15
Time Period Data Span (start date)
Start date of the data in the dataset.
Time Period Data Span (end date)
End date of time data in the dataset.
GeoSpatial Area Data Span
A spatial region or named place the dataset covers.
Field Value
Access category
Type of access granted for the dataset (open, closed, service, etc).
Limits on use
Limits on use of data.
Location
Location of the dataset.
Data Service
Data service for accessing a dataset.
Owner
Owner of the dataset.
Environment and Climate Change Canada | Environnement et Changement climatique Canada
Contact Point
Who to contact regarding access?
Government of Canada; Environment and Climate Change Canada, apei-iepa@ec.gc.ca
Publisher
Publisher of the dataset.
Publisher Email
Email of the publisher.
enviroinfo@ec.gc.ca
Accessed At
Date the data and metadata was accessed.
Field Value
Identifier
Unique identifier for the dataset.
Language
Language(s) of the dataset
Link to dataset description
A URL to an external document describing the dataset.
Persistent Identifier
Data is identified by a persistent identifier.
Globally Unique Identifier
Data is identified by a persistent and globally unique identifier.
Contains data about individuals
Does the data hold data about individuals?
Contains data about identifiable individuals
Does the data hold identifiable data about individual?
Contains Indigenous Data
Does the data hold data about Indigenous communities?
Field Value
Source
Source of the dataset.
https://open.canada.ca/data/en/dataset/fa1c88a8-bf78-4fcb-9c1e-2a5534b92131
Version notes
Version notes about the dataset.
Is version of another dataset
Link to dataset that it is a version of.
Other versions
Link to datasets that are versions of it.
Provenance Text
Provenance Text of the data.
Provenance URL
Provenance URL of the data.
Temporal resolution
Describes how granular the date/time data in the dataset is.
GeoSpatial resolution in meters
Describes how granular (in meters) geospatial data is in the dataset.
GeoSpatial resolution (in regions)
Describes how granular (in regions) geospatial data is in the dataset.
Field Value
Indigenous Community Permission
Who holds the Indigenous Community Permission. Who to contact regarding access to a dataset that has data about Indigenous communities.
Community Permission
Community permission (who gave permission).
The Indigenous communities the dataset is about
Indigenous communities from which data is derived.
Field Value
Number of data rows
If tabular dataset, total number of rows.
Number of data columns
If tabular dataset, total number of unique columns.
Number of data cells
If tabular dataset, total number of cells with data.
Number of data relations
If RDF dataset, total number of triples.
Number of entities
If RDF dataset, total number of entities.
Number of data properties
If RDF dataset, total number of unique properties used by the triples.
Data quality
Describes the quality of the data in the dataset.
Metric for data quality
A metric used to measure the quality of the data, such as missing values or invalid formats.

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