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

3 Ozone-depleting substances

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 2003. 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 2003 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 2003 were 0.1 tonnes. In 2002, sales were 0.95 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 0.1 tonnes of CFC-113 for laboratory purposes.

Statistics Denmark registered imports of 0.037 tonnes of CFC-113, 1.791 tonnes of CFC-11, and 25.716 tonnes of CFC-12 in 2003. Imports of CFC-11 and CFC-12 are prohibited and therefore enterprises' calculations are being re-examined for correctness.

3.1.2 Tetrachloromethane

Three importers reported having imported and sold a total of 0.36 tonnes of tetrachloromethane for laboratory purposes in 2003. In 2002, imports and sales were 0.87 tonnes.

Statistics Denmark registered imports of 0.11 tonnes in 2003.

3.1.3 1,1,1-Trichloroethane

Two importers imported and sold about 0.025 tonnes of 1,1,1-trichloroethane in 2003.

Statistics Denmark registered imports of 3.861 tonnes in 2003.

3.1.4 Halons

Halons have been phased out and there were no reports of imports of halons in 2003.

3.1.5 Methyl bromide

Methyl bromide was only imported for feedstock in 2003.

3.1.6 HCFCs

Five enterprises imported HCFCs in 2003.

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

In 2003, imports of HCFC-22 (new and regenerated) were about 211.8 tonnes, of which 5.6 tonnes came from HFC mixtures. Re-exports were about 115 tonnes, ie. net imports of HCFC-22 in 2003 were about 102.3 tonnes, of which 96.7 tonnes were imported as pure HCFC-22.

Imports of HCFC-141b were 102.4 tonnes in 2003. In 2002, imports totalled 360 tonnes.

There were no imports of HCFC-142b in 2003, 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 the Table.

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 2003, based on information from importers and producers, tonnes.

Application area HCFC-22 HCFC-141b HCFC-142b
System foam (for panels, insulation, etc.) 0 102 0
Refrigerants 102.3 0 0
Total 102.3 102 0

3.1.7 Treatment and destruction

Denmark has two treatment facilities for processing ODSs - Kommune Kemi (KK) and Århus Genindvinding. All ODSs to be treated are sent to these plants.

The KK plant 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.

The Århus Genindvinding plant can document specific annual quantities of individual substances processed at the plant.

The ODSs treated in 2003 appear in the table below.

Table 3.3 Treated ODSs in 2003, tonnes

ODS Quantity, tonnes
HCFC-22 5.8
CFC-12 10.1
CFC-11 12

Some of the HCFC-22 originates from HFC mixtures (HFC-401a, HFC-402a, HFC-408a, HFC-409a) that are sent by Danish importers to the Kommune Kemi treatment plant for processing, either as mixtures of pure refrigerants or in mixed cylinders.

 



Version 1.0 April 2005, © Danish Environmental Protection Agency