Report - DCE - Nationalt Center for Miljø og Energi

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FUIPEPMPHZ
Emissions from vehicle fires are calculated by multiplying the number of
vehicle fires with selected emission factors. Emission factors are not available
for different vehicle types, whereas it is assumed that all the different
vehicle types leads to similar emissions. The activity data are calculated as a
yearly combusted mass by multiplying the number of different full scale vehicles
fires with the Danish registered average weight of the given vehicle
type.
"DUJWJUZ EBUB
As with accidental building fires, data for vehicle fires are available through
the Danish Emergency Management Agency (DEMA). DEMA provides very
detailed data for 2007-2010; the remaining years back to 1980 are estimated
by using surrogate data.
Table 7.21 shows the occurrence of fires in general and vehicle fires registered
at DEMA. The 1980-1988 data for all fires are estimated to be the average
of 1989-2010 data. In 2007-2010 the average percentage of vehicle fires, in
relation to all fires, was 20 %. The total numbers of vehicle fires in 1980-2006
are calculated using this percentage. The full time series is presented in Annex
2D Table 2D-7.
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The total number of vehicle fires is higher this year than last year. This is
due to the addition of the new vehicle categories of other transport, train,
ship, airplane, bicycle, tractor, combined harvester and machine fires in this
year’s inventory.
There are fourteen different vehicle categories. The activity data is categorised
in passenger cars (lighter than 3500 kg), buses, light duty vehicles
(vans and motor homes), heavy duty vehicles (trucks and tankers), motorcycles/mopeds,
other transport, caravans, trains, ships, airplanes, bicycles,
tractors, combined harvesters and machines.
In the same manner as accidental building fires, the 2007-2010 data from
DEMA can be divided in four categories according to damage size. It is assumed
that a full scale fire is a complete burnout of the given vehicle, and
that a large, medium and small scale fire corresponds to 75, 30 and 5 % of a
full scale fire respectively. The total number of full scale equivalent fires