Denmark's National Inventory Report 2005 - Submitted under the ...

For 1990-2001 the POP emission factors have been updated in order to correct errors in the inventories
for these years.
Railways
An update of the NO , NMVOC, CH , CO and PM emission factors for diesel are made for 2002.
X 4
Previously 2001 factors were used for the year 2002 to compensate for missing data.
Agriculture/Forestry/Fisheries
An internal redistribution of gasoline fuel consumption is made. Small amounts of gasoline that
appeared in the sub-sector fisheries (in some inventory years) are now accounted for in the road
transport sector.
Civil Aviation
Several new turboprops are included in the list of representative aircraft for civil aviation based on
new information in the EMEP/CORINAIR guidebook. This change has an impact on the fuel use
split between domestic and international aviation and the emission factors used.
Navigation
For 2002 the diesel fuel use for navigation has been updated according to the official Danish energy
statistics from DEA.
Uncertainties
The uncertainty factors for activity data have been changed to reflect specific national knowledge
(Bak et al. 2003) in the following SNAP categories: Inland waterways (a part of 1A3d: Navigation),
Agriculture and Forestry (parts of 1A4c: Agriculture/forestry/fisheries), Industry (mobile part of
(1A2f: Industry-other) and Residential (1A4b). In addition the activity data uncertainty factor for
civil aviation is changed to 10% according to own judgement.
3.3.6 Planned improvements
It will continuously be aspired to fulfil the requirements from UNECE and UNFCCC of good
practice in inventory making for transport. A study has been made for transport going through the
different issues of choices relating to methods (methods used, emission factors, activity data, completeness,
time-series consistency, uncertainty assessment) reporting and documentation, and inventory
quality assurance/quality control. This work and the overall priorities of NERI taking into
account emission source importance (from the Danish 2003 key source analysis), background data
available and time resources, lay down the following list of improvements to be made in the future.
Non-road machinery
According to the Danish 2003 key source analysis agricultural and industrial working machines
are key sources of emissions. Thus an update of the vehicle stock and operational data for nonroad
machines in agriculture, forestry, industry and household and gardening will be made. The
considered time-series will cover the period from 1990 to the latest historical year. In addition a
review will be made of the emission factors used.
Fisheries
Since fishing vessels are a key source of emissions, the calculation method for fisheries will be upgraded
to Tier2 based on detailed data for vessel numbers.
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