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

in Table 3E.9.
Table 3E.9 Gross emissions of methane (Gg) by the adjusted IPCC method, the countryspecific
method and average of the two methods.
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Figure 3.E.2. The open triangles and circles represent the country-specific gross emission derived from measured
BOD and COD values, respectively. The grey triangles represent the default derived gross emission based on the
IPCC GL default value for Europe of 18250 kg BOD/1000 persons/yr corrected by increasing the degradable organic
component 41.7% due to industry. The crosses represent the country-specific gross emission regression
equation derived from the measured COD values. The average reported values are presented by the dots.
At this point it is not possible to quantify a non-linear trend curve for the gross emission, and
therefore it seems most reasonable to use the average value of the two methods.
The open triangles representing gross emissions derived from measured BOD data are not
considered for interpolation or extrapolation purposes as these measurements for some years
are based on a technique that includes oxygen used by nitrification, and for some year they
are not and again sometimes the measurements are reported as an average of modified and
unmodified BOD. This makes the data useless for interpolation purposes.
The average value is the reported gross CH 4 emission.
Recovered and combusted methane potentials
The calculated theoretical CH 4 not emitted is given in Table 3E.10 below.
375