Annual Danish informative inventory report to UNECE. Emission ...

sumption in residential plants and of the increased use of lean-burn gas
engines in CHP plants.
The emission from residential plants increased 34 % since 1990. The
NMVOC emission from wood combustion in 2009 was 2.5 times the
1990 level due to increased wood consumption. However, the emission
factor has decreased since 1990 due to installation of modern stoves and
boilers with improved combustion technology. Further the emission
from straw combustion in farmhouse boilers has decreased (75 %) over
this period due to both a decreasing emission factor and decrease in
straw consumption in this source category.
The use of wood in residential boilers and stoves was relatively low in
1998-99 resulting in a lower emission level.
The decrease of the NMVOC emission since 2007 is a result of both a
decline of the consumption of wood in residential plants and a decreasing
emission factor for firewood combustion in residential plants.
Table 3.7 NMVOC emission from stationary combustion plants, 2009 1) .
NMVOC Mg
1A1a Public electricity and heat production 1938
1A1b Petroleum refining 1
1A1c Other energy industries 38
1A2 Industry 295
1A4a Commercial/Institutional 275
1A4b Residential 16245
1A4c Agriculture/Forestry/Fisheries 444
Total 19236
Residential plants Electricity and heat production
Gas oil
2%
Straw
7%
Natural
gas
1%
Other
0.1%
Wood
90%
1A4c Agriculture
/ Forestry /
Fisheries
2%
1A4b
Residential
85%
Other
electricity and
heat
production
plants
26%
1A1a Public
electricity and
heat production
10%
1) Only emission from stationary combustion plants in the categories is included.
1A1b Petroleum
refining
0.003%
Gas engines
74%
1A1c Other
energy industries
0.2%
1A2 Industry
2%
1A4a
Commercial /
Institutional
1%
Figure 3.11 NMVOC emission from Residential plants and from Electricity and heat
production, 2009.
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