Table 1.5.1 Summary of key source categories in the 2002 inventory

IPCC source categories	Gas	Criteria for identification
Energy sector
CO₂ emissions from stationary combustion - solid	CO₂	level, trend
CO₂emissions from stationary combustion - liquid	CO₂	level, trend
CO₂ emissions from stationary combustion - gas	CO₂	level, trend
Mobile combustion - road vehicles	CO₂	level, trend
Mobile combustion - aviation	CO₂	level, trend
Fugitive emissions from coal mining and handling	CH₄	trend
Fugitive emissions from geothermal operations	CO₂	trend
Industrial processes sector
CO₂ emissions from cement production	CO₂	level
CO₂ emissions from the iron and steel industry	CO₂	level
CO₂ emissions from aluminium production	CO₂	level
PFCs from aluminium production	PFCs	trend
Emissions from substitutes for ozone depleting substances	HFCs	level, trend
Agricultural sector
CH₄ emissions from enteric fermentation in domestic livestock	CH₄	level, trend
CH₄emissions from manure management	CH₄	level, trend
Direct N₂O emissions from agricultural soils	N₂O	level, trend
N₂O emissions from animal deposition on agricultural soils	N₂O	level, trend
Indirect N₂O emissions from nitrogen used in agriculture	N₂O	level
Waste sector
CH₄emissions from solid waste disposal sites	CH₄	level, trend