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September 2008 - From 11000-2006 the fuel
use and CO2 emissions for road transport
have increased by 36 %, and CH4 emissions
have decreased by 51 %. A N2O emission increase
of 29 % is related to the relatively high
emissions from older gasoline catalyst cars.
The 1985-2006 emission decreases for PM
(exhaust only), CO, NOxand NMVOC are 30,
69, 28 and 71 % respectively, due to the
introduction of vehicles complying with
gradually stricter emission standards. For
SO2 the emission drop is 99% (due to reduced
sulphur content in the diesel fuel), whereas
the NH3 emissions increase by 3065% (due
to the introduction of catalyst cars). For
other mobile sources the calculated emission
changes for CO2 (and fuel use), CH4and N2O
are -10, 5 and -11%, from 11000 to 2006.
The emissions of SO2, particulates (all
size fractions), NOx, NMVOC and CO have
decreased by 88, 56, 14, 12 and 9% from
1985 to 2006. For NH3the emissions have
increased by 8% in the same time period.
This appears from a
new NERI-report which explains the parts
of the Danish inventories related to road
transport and other mobile sources. Emission
results are shown for CO2, CH4, N2O, SO2,
NOx, NMVOC, CO, particulate matter (PM),
heavy metals, dioxins and PAH. Uncertainties
for the emissions and trends have been estimated.
Senior scientist Morten Winther
