This report explains the parts of the Danish emission inventories related to road transport and other mobile sources. Emission results are shown for CO2, CH4, N2O, SO2, NOx, NMVOC, CO, particulate matter (PM), BC, heavy metals, dioxins, HCB, PCBs and PAHs. From 1990-2020 the fuel consumption and CO2 emissions for road transport increased by 26 and 19 %, respectively, and CH4 emissions have decreased by 90 %. A N2O emission increase of 42 % is related to the relatively high emissions from older gasoline catalyst cars. The 1985-2020 emission decrease for NOx,
NMVOC, CO, particulates (exhaust only: Size is below PM2.5) and BC are 77, 92, 91, 90 and 88 %, respectively, due to the introduction of vehicles complying with gradually stricter emission standards. For SO2 the emission drop 99 % (due to reduced sulphur content in the diesel fuel), whereas the NH3 emissions increased by 1068 % (due to the introduction of catalyst cars). For other mobile sources the calculated fuel consumption and emission changes for CO2, CH4 and N2O were -19, -20, -64 and -5
%, from 1990 to 2020. The emissions of SO2, NOX, NMVOC, CO and PM (all size fractions) decreased by 96, 49, 66, 37, 79 and 80 %, respectively, from 1985 to 2020. For NH3 the emissions increased by 15 % in the same time period. Uncertainties for the emissions and trends were estimated.
