Report - DCE - Nationalt Center for Miljø og Energi

emission factor based on 2000 figures is used for estimation of 2001 to 2010
emissions. The emission of NMVOC shows a decreasing trend from 1990 to
2010.
The emission of NMVOC from production of chemical ingredients has been
measured from 1996 to 2010 (Danisco Grindsted, 2011). The emission has decreased
from 100 to 12 tonnes NMVOC in this period. However, no explanation
can be given on these conditions, as information on activity is not available.
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The time series are either based on specific measurements or by using company-specific
emission factors and activity data. Therefore, the time series
are considered to be consistent.
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The emission factors for production of nitric acid and sulphuric acid have
been verified by comparison with standard emission factors
(EMEP/CORINAIR, 2007). Detailed discussion of QA/QC can be found in
Nielsen et al. (2008).
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Emission of NMVOC from production of chemical ingredients has been
transferred from sector 2WKHU SURGXFWLRQ * to &KHPLFDO LQGXVWU\.
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No source specific improvements are planned.
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The sub-sector 0HWDO SURGXFWLRQ (NFR 2C) covers the following processes:
• Steelworks (SNAP 040207)
• Rolling mills (SNAP 040208)
• Iron foundries (SNAP 030303)
• Secondary lead production (SNAP 030307)
• Secondary zinc production (SNAP 030308)
• Secondary aluminium production (SNAP 030310)
• Allied metal manufacturing (SNAP 040306)
The time series for emission of heavy metals and particulate matter from
0HWDO SURGXFWLRQ (NFR 2C) are presented in Table 4.5.
The emission inventory for metal production is based on specific emissions
from steelworks and secondary aluminium manufacturing as well as average
emission factors for iron foundries, secondary lead and zinc manufacturing,
and allied metal manufacturing. Regarding the steelworks that use iron
and steel scrap as raw material, the emissions to a large degree depend on
the quality of the scrap. This fact may result in large annual variations for
one or more of the heavy metals. This may be the case for iron foundries, as