Search Emission Metrics

This tool returns emission metrics associated with your query. An emission metric is an estimate of a quantity of pollutant emitted within defined geographic, temporal, sectoral, and/or procedural boundaries. Air pollutant inventories, including those found in this Portal, typically feature the following parameters: Place (country or state/province/territory); Year (or range of years); Pollutant (or pollutant family); Source Category (or subcategory); and Estimation Methodology. Note: Fuel (another key parameter) is not included at this time, because it is not well-defined in the available inventories.

The parameters included in each inventory are shown in the Inventory Overview table below.

Select from the parameters below to refine your search. To ensure that your query returns results, refer to the Inventory Overview table to select parameters that are compatible with one another. Note: When selecting a Source Category or Estimation Methodology, we recommend that you click on the “i” icons for more information.

Select the year or years of interest for your search.


Select one or more country, province, state, or territory of interest.


Select one or more pollutant, or pollutant group, of interest.


Select from the list of source categories below if you wish to refine your search by emitting activity or economic sector.


Select from the list below if you wish to further refine your search by estimation methodology.

Search Places

Use the links below to select countries, states, provinces, or territories.

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North American Countries

Canada

Canadian Provinces

United States

American States

Mexico

Mexican States

Search Pollutants

A pollutant is a chemical or agent present in the atmosphere that may contribute to climate change or become hazardous to human health.

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All pollutants

Black carbon (BC) and related pollutants

Criteria air contaminants (CAC)

Greenhouse gases (GHG)

Short-lived climate pollutants (SLCP)

Select from either the list of source categories or the list of estimation methodologies below to see the associated pollutant(s). Clicking on a pollutant name will redirect you to the inventory(ies) that have associated pollutant data.


Select from the list of source categories below if you wish to refine your search by emitting activity or economic sector.


Select from the list below if you wish to further refine your search by estimation methodology.

Search Source Categories

A source category is a classification of emissions by emitting activity or economic sector.

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CRF 2006 Source Categories

Use this search tool to obtain data for a selected source category, by selecting from either the list of guidance documents or the list of pollutants below.


Select one or more pollutant, or pollutant group, of interest.

Search Estimation Methodologies

An estimation methodology is a method and/or algorithm used to estimate the total emissions of one or more pollutants resulting from an emitting activity.

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Revised 1996 IPCC Guidelines

2006 IPCC Guidelines

Use this search tool to obtain estimation methodologies for a selected Source Category or Pollutant.


Select from the list of source categories below if you wish to refine your search by emitting activity or economic sector.


Select one or more pollutant, or pollutant group, of interest.

Browse by Inventory

An inventory is a complete accounting of air pollutant emissions within a defined set of geographic, temporal, sectoral and/or organizational boundaries.

To search text: use the search field below to filter records by text included in the results table.
Inventory Type Publisher Publication Date
State Inventory and Projection Tool GHG U.S. Environmental Protection Agency Dec 2014
Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-2012 GHG U.S. Environmental Protection Agency Apr 2014
National Inventory Report 1990-2012: Greenhouse Gas Sources and Sinks in Canada GHG Environment Canada Apr 2014
Supporting National Planning of Short-Lived Climate Pollutants in Mexico BC, SLCP Molina Center for Strategic Studies in Energy and the Environment, in collaboration with National Institute of Ecology and Climate Change Sep 2013
México Quinta Comunicación Nacional ante la Convención Marco de las Naciones Unidas sobre el Cambio Climático GHG, BC Instituto Nacional de Ecología y Cambio Climático Dec 2012
Report to Congress on Black Carbon BC U.S. Environmental Protection Agency Mar 2012
An Assessment of Emissions and Mitigation Options for Black Carbon for the Arctic Council. Appendix A: Canada. BC Arctic Council Task Force on Short-Lived Climate Forcers. Canadian inventory prepared by Environment Canada. Jul 2011