Table 3 Types of methods employed in estimating selected sources for Canada’s greenhouse gas emissions

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Statistics Canada - Government of Canada

Table 3
Types of methods employed in estimating selected sources for Canada's GHG emissions
Category	IPCC method type	Notes
Energy – fuel combustion	Tier 2	Emission estimations are based on detailed fuel/technology information covering stationary and mobile sources.
Energy – fugitive emissions	Tier 2/Tier 3 hybrid	Hybrid approach is appropriate in situations when specific measurement data are available for only a subset of the data (i.e. mine-specific emissions).
Industrial processes – ammonia production	Tier 1	Based on the use of national production data and an average national emission factor.
Industrial processes – nitric acid production	Tier 2	Uses Canada-specific emission factors based on the type of abatement technology employed at individual plants.
Industrial processes – adipic acid production	Tier 3	Based on direct observation reports of facility-specific emissions data.
Agriculture – enteric fermentation	Tier 1/Tier 2	Uses domestic animal population data and average emission factors for all animal categories except cattle, where country-specific factors are applied.
Agriculture – manure management	Tier 1/Tier 2	Uses domestic animal population data and average emission factors for manure N₂O (Tier 1), and country-specific emission factors for manure CH₄ (Tier 2) for all animal categories.
Agriculture – soil emissions of nitrous oxide	Tier 1	All emissions in this category are calculated using default emission factors.
Waste – solid waste disposal on land	Tier 2	Uses a model to produce an emission profile that reflects the pattern of the degradation of waste over time.
Source: Derived from Environment Canada 2005 and IPCC 1997.
Table source: Statistics Canada, 2006, Canadian Environmental Sustainability Indicators: Greenhouse Gas Emissions Indicator – Data Sources and Methods, Catalogue number 16-255-XWE2006000.