Spatial distribution of emissions to air - the SPREAD model

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As for industrial processes it will be evaluated if the emissions related to
industries could be distributed more appropriate than evenly on the industrial
area. Again employment statistics might be a useful data source.
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In the present version of SPREAD emissions from solid waste disposal
are distributed evenly on the disposal sites. It would improve the distribution
if the inventory was made at site level and not at national level as
is the case now. Data to restructure the emission inventory on disposal
site level is available, but the restructuring would be very time consuming
and would only improve the spatial distribution and not the national
inventory. This improvement will be included if a restructuring is carried
out.
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In the present inventory emissions from wastewater treatment are distributed
according to the degradable organic matter in the inlet wastewater.
It would improve the distribution to include the fraction being treated
under anaerobic conditions. Data are not available at the moment but
efforts will be made to gain access to such data due to improvement of
the emission inventory for wastewater.
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Geographical coordinates are not available for the Danish recycling depots
for use in SPREAD and the emissions are distributed on areas with
one-storage buildings in the present version of SPREAD. It would be an
improvement to distribute part of the emissions on the recycling depots,
as only a limited amount is composted in private gardens.
The distribution could be improved if the plants handling garden and
park waste were geo-coded and used for either equal distribution or
weighted due to the waste amounts.
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It will be evaluated if it would be possible to allocate all or a part of the
accidental fires on a geographical level, e.g. municipality, city, fire department
or fire station.