Report - DCE - Nationalt Center for Miljø og Energi

Outputs from the inventory are
• a list where the most predominant pollutants are ranked according to
emissions to air,
• specification of emissions from industrial sectors and from households,
• contribution from each pollutant to emissions from industrial sectors and
households,
• yearly trend in emissions, expressed as total pollutant and single pollutant,
and specified in industrial sectors and households.
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Table 5.1 and Figure 5.1 show the emissions of NMVOC from 1990 to 2010,
where the used amounts of single pollutants have been assigned to specific
products and NFR sectors. A general increase is seen for all sectors from
1990 to 1996 followed by a decrease from 1997 to 2006 and stagnation in the
period 2007 to 2010. Table 5.2 shows the used amounts of pollutants for the
same period. Table 5.1 is derived from Table 5.2 by applying emission factors
relevant to individual pollutants and production or use activities. Table
5.3 showing the used amount of products (activity data) is derived from Table
5.2, by assessing the amount of pollutants that is comprised within
products belonging to each of the four source categories.
In Table 5.4 the emission for 2010 is split into individual pollutants. The
most abundantly used solvents are ethanol, turpentine, or white spirit defined
as a mixture of stoddard solvent and solvent naphtha and propylalcohol.
Ethanol is used as solvent in the chemical industry and as windscreen
washing agent. Turpentine is used as thinner for paints, lacquers and adhesives.
Propylalcohol is used in cleaning agents in the manufacture of electrical
equipment, flux agents for soldering, as solvent and thinner and as
windscreen washing agent. Household emissions are dominated by propane
and butane, which are used as aerosols in spray cans, primarily in cosmetics.
For some pollutants the emission factors are precise but for others they are
rough estimates. The division of emission factors into four categories implies
that high emission factors are applicable for use of solvent containing products
and lower emission factors are applicable for use in industrial processes.
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