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

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The result of the key source level assessment for Denmark for 2003 is shown in Table
1. A number of 21 key sources were identified and marked as shaded in the Table. In
2002 the number of key sources was also 21, in 2001 and 2000 the number was 20. The
entries to Table 1 and 2 for the year 1990 and 2003 are composed from the databases
producing the CRF inventory for those years in this report. Note that base year estimates
are not used in the level assessment analysis, but are only included in Table 1
to make it uniform with Table 2.
The result of the key source trend assessment for Denmark for 2003 is shown in Table
2. A number of 22 key sources (17 in 2002, 17 in 2001 and 16 in 2000) were identified
and marked as shaded in the table. Note that according to the GPG the analysis implies
that contributions to the trend are all calculated mathematically positive to be
able to perform the ranking.
Following the reporting suggestion of the GPG the key source analysis is summarised
in Table 3. The information in this table is given in order to allow reference to the key
source table (Table 7) to be used in the new CRF format. In Table 3, all categories
used in the analysis are listed and the summary result of the key source analyses is
given. It is seen that of the 67 source categories chosen for this analysis, 25 are identified
as key source categories either in the level or in the trend analysis or in both. In
2002 this number was also 25 out of 63 categories, while in 2001 and 2000 out of 59
categories 23 and 22 were key sources, respectively. In the key source analysis for
2003 18 key sources were keys in both level and trend as compared to 15 in 2002, and
14 in both 2001 and 2000. In 2003 3 sources were key sources in level only (7 in 2002
and 6 in 2001 and in 2000) In 2003 4 sources were key sources in trend only (3 in 2002,
3 in 2001 and 2 in 2000).
The Energy Sector and CO 2 emission from Stationary Combustion contributes with
6 key source categories in 2003 with respect to level and trend (7 in 2002, 7 in 2001
and 5 in 2000). These 6 key sources are as in 2001 the major fuels Coal, Residual Oil,
Gas Oil and Natural Gas and Plastic Waste, while Orimulsion is not a key sources any
longer as it was in 2002 in the trend analysis. For those key sources the trend in emission
estimates, comparing 1990 and 2003, Coal, Residual Oil and Gas Oil are seen to
decrease, while Plastic Waste and Petroleum Coke and especially Natural Gas increase.
According to the key source level assessment coal is the most contributing
category in 2003 with 30.5% of the national total (Table 1). Also in 2002 and 2001 coal
was the most contributing category. This contribution is at a maximum in 2003, since
in 2002 it was 24.4% where it had increased from 24.0% in 2001 and 23.0% in 2000.
Natural gas is in 2003 as in 2002 and in 2001 the third largest contributor with 15.1%
in 2003 (16.6% in 2002, 16.0% in 2001 and 15.5% in 2000). Gas Oil is in 2003 the 4th
largest contributor with 3.9% (in 2002 4.3%, in 2001 4.4% and in 2000 4.2%). The rest
of the categories mentioned in this paragraph as level and trend key sources contribute
each below 3% of the national total in 2003.
The Energy Sector and CO 2 emission from Mobile Combustion contribute with road
transportation as a key source for level and trend with increased emission estimates
from year 1990 to 2003. This category is in year 2003 as in 2002, in 2001 and in 2000
the second largest contributor with a level contribution of 16.0% in 2003 as compared
to 16.6% in 2002, 16.2% in 2001 and 16.4% in 2000. It is new to the key source analysis
performed for this submission that the sources CO 2 from mobile combustion national
fishing and CO 2 from mobile combustion agriculture become keys with respect to
both level and trend. Previously they were keys only according to level. The former of
these two sources shows a decreasing trend from 1990 to 2003 while the latter in-
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