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Ozone-depleting substances and the greenhouse gases HFCs, PFCs and SF6

3 Ozone-depleting substances

• 3.1 Imports and exports
  • 3.1.1 CFCs
  • 3.1.2 Tetrachloromethane
  • 3.1.3 1,1,1-Trichloroethane
  • 3.1.4 Halons
  • 3.1.5 Methyl bromide
  • 3.1.6 HCFCs
  • 3.1.7 Disposal

All known importers of ODSs responded to the questionnaire survey. The responses provide information on imports/exports, sales/purchases, and areas of application for relevant substances (including both mixed and pure substances). All ODSs reported by the importers are newly produced ODSs.

The information from importers was supplemented with statistical information from Statistics Denmark for 2004. Statistical data was used to cross-check imports/exports information from importers. The statistics do not distinguish between new and re-used substances, and thus imports could, in principle, consist of both new and re-used substances.

The foreign trade statistics for 2004 assign the following ozone-depleting substances to the following separate positions:

• CFC-11 (position no. 2903.41.00)
• CFC-12 (position no. 2903.42.00)
• CFC-113 (position no. 2903.43.00)
• CFC-115 (position no. 2903.44.90)
• Tetrachloromethane (carbon tetrachloride) (position no. 2903.14.00)
• 1,1,1-trichloroethane (methyl chloroform) (position no. 2903.19.00)

The foreign trade statistics also include some substance group positions that can indicate trends in imports and exports of HCFCs (and HFCs and PFCs), but due to the broad definitions of the substance groups, it is not possible to utilise the position numbers in the evaluation since this relates to individual substances.

3.1 Imports and exports

The following sections describe imports and sales of individual ozone-depleting substances.

3.1.1 CFCs

On the basis of information from importers, sales of new CFCs in 2004 were 0.01 tonnes. In 2003, sales were 0.1 tonnes. The reduction is due to new techniques, so that CFC-113 is no longer used for analysis purposes by the off-shore industry.

One importer reports having sold 0.01 tonnes of CFC-113 for laboratory purposes.

Statistics Denmark registered imports of 0.001 tonnes of CFC-113, 0.001 tonnes CFC-11, and 15.45 tonnes of CFC-12 in 2004. Imports of CFC-11 and CFC-12 are prohibited and therefore enterprises' calculations are being re-examined for correctness.

3.1.2 Tetrachloromethane

In 2004, imports and sales of tetrachloromethane were 0.033 tonnes. In 2003, imports and sales were 0.36 tonnes.

Statistics Denmark registered imports of 0.05 tonnes in 2004.

3.1.3 1,1,1-Trichloroethane

In 2004 the import of 1,1,1-Trichlorethane were 0.009 tonnes. There were no reports of 1,1,1-trichloroethane in 2003.

Statistics Denmark registered imports of 0.017 tonnes in 2004.

3.1.4 Halons

Halons have been phased out and there were no reports of imports of halons in 2004.

3.1.5 Methyl bromide

Methyl bromide was only imported for feedstock in 2004.

3.1.6 HCFCs

Six enterprises imported HCFCs in 2004.

Consumption of HCFC-22 has gone up, whereas consumption of HCFC-141b has gone down. There has been no consumption of HCFC-142b.

In 2004, imports of HCFC-22 (regenerated) were about 112.1 tonnes and import through HFC mixtures were 10.3 tonnes. Re-exports were about 180.7 tonnes.

Imports of HCFC-141b were 20.3 tonnes in 2004. In 2003, imports totalled 102.4 tonnes.

There were no imports of HCFC-142b in 2004, and Danish consumption of this substance has been phased out.

Table 3.1 Developments in consumption and potential emissions, tonnes (ODP-weighted tonnes are shown in italics).

Click here to see table 3.1

Table 3.2 shows an overview of the Danish consumption of HCFCs by application area, based on information from importers and producers.

Table 3.2 HCFC consumption analysed by application area for 2004, based on information from importers and producers, tonnes.

3.1.7 Disposal

Denmark has two treatment facilities for destruction of ODSs - Kommune Kemi and Århus Genindvinding. All ODSs to be disposed are sent to these plants.

Kommune Kemi does not operate a registration system for individual substances because it receives and treats all substances in mixed tanks. Consequently, it is not possible to quantify the amounts of substances collected for treatment based on what the plant receives. Therefore, information from the importers that receive and send on used ODSs for treatment at the KK plant has been used instead.

Århus Genindvinding register the specific annual quantities of individual substances disposed at the facility.

The ODSs disposed in 2004 appear in the table below.

Table 3.3 Disposed ODSs in 2004, tonnes.

Some of the HCFC-22 originates from HFC blends (HFC-401a, HFC-402a, HFC-408a, HFC-409a) which are sent by Danish importers to the Kommune Kemi for destruction

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Version 1.0 February 2006, © Danish Environmental Protection Agency