2 D 3 g Chemical Products

Last updated on 16 Oct 2015 06:20 (cf. Authors)

Short Description

NFR-Code Name of category Pollutants Method AD Emission factors Key source for
2.D.3.g Chemical Products NMVOC Tier 2 National statistics Country-specific NMVOC (L/T)

This source category comprises NMVOC emissions from the use of solvents in the following manufacture processes:

  • Polyester processing
  • Polyvinychloride processing
  • Polyurethane processing
  • Polystyrene foam processing
  • Rubber processing
  • Pharmaceutical products manufacturing
  • Manufacture of paints and lacquers
  • Manufacture of inks
  • Glues manufacturing
  • Asphalt blowing
  • Adhesive manufacturing, magnetic tapes manufacturing, photographs manufacturing
  • Solvents manufacturing:
    • Manufacture of wood preservatives
    • Manufacture of building material additives
    • Manufacture of solvent-based consumer goods
    • Manufacture of surface cleaning agents
    • Manufacture of antifreeze agents and de-icers
    • Manufacture of waxing and dewaxing agents
    • Manufacture of paint strippers

‘NMVOC’ is defined in keeping with the VOC definition found in the EC solvents directive. For purposes of the definition of solvents, the term ‘solvent use’ is also defined in keeping with the EC solvents directive.

Method

General procedure

NMVOC emissions are calculated in keeping with a product-consumption-oriented approach.
In this approach, solvent-based products or solvents are allocated to the source category, and then the relevant NMVOC emissions are calculated from those solvent quantities via specific emission factors. Thus, the use of this method is possible with the following valid input figures for each product group:

  • Quantities of VOC-containing (pre-) products and agents used in the report year,
  • The VOC concentrations in these products (substances and preparations),
  • The relevant application and emission conditions (or the resulting specific emission factor).

The quantity of the solvent-based (pre-)product corresponds to the domestic consumption which is the sum of domestic production plus import minus export.

NMVOC Emission = domestic consumption of a certain product * solvent content * specific emission factor

The calculated NMVOC emissions of different product groups for a source category are then aggregated.
The product / substance quantities used are determined at the product-group level with the help of production and foreign-trade statistics. Where possible, the so-determined domestic-consumption quantities are then further verified via cross-checking with industry statistics.

Discussion of emission trends

General information

Since 1990, so the data, NMVOC emissions from use of solvents and solvent-containing products in general have decreased by nearly 38%. The main emissions reductions have been achieved in the years since 1999. This successful reduction has occurred especially as a result of regulatory provisions such as the 31st Ordinance on the execution of the Federal Immissions Control Act (Ordinance on the limitation of emissions of volatile organic compounds due to the use of organic solvents in certain facilities – 31. BImSchV), the 2nd such ordinance (Ordinance on the limitation of emissions of highly volatile halogenated organic compounds – 2. BImSchV) and the TA Luft.

Specific information

Since 1990, data of source category 2.D.3.g are recorded. Since 2000, a more detailed data collection procedure enables to follow the development of different applications, which altogether account for about 7 - 8% of total NMVOC emissions from solvent-based products (Figures 1-3).


Figure 1: Development of NMVOC emissions of category 2.D.3.g since 1990. A more comprehensive data analysis since 2000 enables an application- / product-specific evaluation.


Figure 2: Development of NMVOC emissions from source group 2.D.3.g in comparison to total NMVOC emissions from solvent-based products and applications since 1990.


Figure 3: Share of NMVOC emissions from source group 2.D.3.g on total NMVOC emissions from solvent-based products and applications since 1990.

There is a slight increasing trend in emissions, among others caused by a raised amount of NMVOC emissions from solvents used in polystyrene foam processing and the manufacture of solvent-based consumer products (Table 1).

Major emissions from … 2001 2006 2007 2008 2009 2010 2011 2012 2013
Polystyrene foam processing 100% 134% 118% 283% 176% 209% 213% 191% 190%
Rubber processing 100% 103% 96% 95% 118% 135% 136% 129% 136%
Manufacture of paints and lacquers 100% 123% 117% 115% 98% 100% 110% 84% 90%
Pharmaceutical products manufacturing 100% 12% 5% 7% 10% 10% 10% 11% 11%
Solvent-based consumer goods 100% 112% 125% 198% 201% 207% 208% 222%
Manufacture of antifreeze agents and de-icers 100% 107% 82% 108% 187% 108% 74% 98%

Table 1: List of product groups and applications that primarily contributed to emissions of category 2.D.3.d in 2001 and its relative development compared to 2001. For ‘solvent-based consumer goods’ and ‘manufacture of antifreeze agents and de-icers’ specified data were only available from 2006 and the relative development compared to 2006 is shown. Semi-aggregated data from 2002 until 2005 do not allow calculating shares for the listed product groups in this period.

Uncertainty

Emission factors: Relative error rates at ±15% and ±25% (for Asphalt blowing; Adhesive manufacturing, magnetic tapes manufacturing, photographs manufacturing) were applied, but not exceeding 100% or falling below 0%. Uncertainties refer to a 95% confidence interval.

Recalculations

No recalculations were carried out.

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