01.09.2013 Views

Report - DCE - Nationalt Center for Miljø og Energi

Report - DCE - Nationalt Center for Miljø og Energi

Report - DCE - Nationalt Center for Miljø og Energi

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

4PVSDF TQFDJGJD SFDBMDVMBUJPOT<br />

Changes have been made to the methodol<strong>og</strong>y of accidental building and vehicle<br />

fires. For accidental building fires, the different building categories<br />

now also include additional buildings (sheds, greenhouses etc.) and container<br />

fires. Also there are now four damage categories; full, large, medium<br />

and small scale fires, corresponding to 100, 75, 30 and 5 % damage rate respectfully.<br />

The effect of these changes is a decrease in emissions between 4-9<br />

% <strong>for</strong> particles and 44-47 % <strong>for</strong> NMVOC. Even though the number of included<br />

building fires is higher in this year’s inventory, the total emissions<br />

are lowered. In earlier years buildings like carports, sheds and greenhouses<br />

were categorised as detached houses and emissions from these fires were<br />

calculated based on average floor space and content masses that were much<br />

too high. The addition of the category additional buildings is the main reason<br />

<strong>for</strong> the lowered total emissions from accidental building fires.<br />

For accidental vehicle fires, similar changes were made. Last year the damage<br />

rate was set to 70 % <strong>for</strong> all fires, but this year the damage rate was divided<br />

in four damage categories according to the measure of fire extinguishing;<br />

full, large, medium and small scale fires, corresponding to 100, 75, 30<br />

and 5 % damage rate respectfully. These new damage categories give an average<br />

burnout <strong>for</strong> all vehicle categories in 2007-2010 of 34 % and thereby a<br />

reduction in emission of about 50 % compared with the 70 % burnout used<br />

in last year’s inventory. Also the activity data now includes other transport,<br />

trains, ships, airplanes, bicycles, tractors, combined harvesters and machines.<br />

The activity of these eight new categories has a descending trend,<br />

whereas activities that were also included in last year’s inventory have an<br />

increasing trend. The resulting new total emission from accidental vehicle<br />

fires has a relatively constant trend. The joint effect of these two changes in<br />

methodol<strong>og</strong>y is an increase in emissions <strong>for</strong> 1980-1991 and a decrease <strong>for</strong><br />

1992-2009. The largest increase is 9 % <strong>for</strong> all pollutants in 1980 and the largest<br />

decrease is -33 % <strong>for</strong> all pollutants in 2007, the changes in 1990 and 2009<br />

data are +4 % and -16 % respectively.<br />

The total change in emissions caused by the recalculation of accidental fires<br />

is a decrease in 2009 data between 16 % (particles) and 44 % (NMVOC).<br />

4PVSDF TQFDJGJD QMBOOFE JNQSPWFNFOUT<br />

There are currently no planned improvements <strong>for</strong> this section.<br />

4PVSDF TQFDJGJD QFSGPSNFE JNQSPWFNFOUT<br />

The methodol<strong>og</strong>y of accidental fires has been improved in this year’s inventory.<br />

The impacts of the changes are described under 7.7 Source-specific recalculations.<br />

3FGFSFODFT<br />

Affaldsstatistik 2006 (Waste Statistics), Orientering fra <strong>Miljø</strong>styrelsen Nr. 2<br />

2008, <strong>Miljø</strong>styrelsen, <strong>Miljø</strong>ministeriet. Available at:<br />

http://www2.mst.dk/udgiv/publikationer/2008/978-87-7052-753-<br />

8/pdf/978-87-7052-754-5.pdf (In Danish) (01-26-2012).<br />

Affaldsstatistik 2007 <strong>og</strong> 2008 (Waste Statistics), Orientering fra <strong>Miljø</strong>styrelsen<br />

Nr. 5 2010, <strong>Miljø</strong>styrelsen, <strong>Miljø</strong>ministeriet. Available at:

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!