The links below leads to some technical datasets giving the emission factors used for national emission inventories:
Emission factors for stationary combustion greenhouse gases and main pollutants for the year 2010
Emission factors for stationary combustion heavy metals and PAHs for the year 2010
Exhaust emission factors for mobile sources greenhouse gases and main pollutants for the year 2010
Exhaust emission factors for mobile sources heavy metals and PAHs for the year 2010