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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).

The information from importers was supplemented with statistical information from Statistics Denmark for 2006. 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 2006 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 CFC-113 in 2006 was 0 tonnes. In 2005 the sales of new CFC-113 was 0,01 tonnes.

Statistics Denmark registered imports of 0,026 tonnes of CFC-113, and 1,675 tonnes of CFC-12 in 2006. Import of CFC-12 is banned and therefore enterprises’ calculations are being re-examined. The case is handed over to DEPA’s chemical Inspection.

3.1.2 Tetrachloromethane

In 2006, information from companies on imports and sales of tetrachloromethane were 0 tonnes. In 2005, imports and sales were also 0 tonnes.

 Statistics Denmark registered imports of 0,033 tonnes in 2006. Because of the small amount, no re-examination of data will be carried out.

3.1.3 1,1,1-Trichloroethane

In 2006 the information from companies on import of 1,1,1-Trichlorethane was 0 tonnes. In 2005 the import of 1,1,1-Trichlorethane were 0.01 tonnes.

Statistics Denmark registered imports of 0.252 tonnes in 2006. Because of the small amount, no re-examination of data has been carried out.

3.1.4 Halons

There was no import of halons in 2006. Consumption of new halon has been phased out for several years but halons still occur in fire fighting equipment in ships and aircrafts. The installed amount is not estimated.

3.1.5 Methyl bromide

Methyl bromide was again in 2006 only imported for use in feedstock.

3.1.6 HCFCs

Six enterprises imported HCFCs in 2006.

Consumption of regenerated HCFC-22 has decreased but consumption of HCFC-141b has increased. There has been no consumption of HCFC-142b.

In 2006, import and consumption of HCFC-22 (regenerated) were about 66 tonnes. In 2005 the consumption of regenerated HCFC-22 were 95,6 tonnes.

Import and consumption of HCFC-141b were 27,7 tonnes in 2006. Import of HCFC-141b was 13.4 tonnes in 2005.

There were no import of HCFC-142b in 2006 as well in 2005, and Danish consumption of this substance has been phased out.

There has been an import and re-export of new HCFC-22 and HFC-blends which contain new HCFC-22 in 2006.

Table 3.1 Developments in consumption and potential emissions from 1992 and 2000-2006, tonnes (ODP- weighted tonnes are shown in italics).

1) Information from the Danish EPA environmental statistics.
2) In accordance to guidelines from UNEP, regenerated substances is not calculated in the ODP-weighted consumption. HFCF-22 consumption from 2004-2006 is only regenerated HFCF-22 and has therefore 0 as the ODP-weighted value.

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 Danish HCFC consumption 2006, based on information from importers and producers, tonnes.

3.1.7 Disposal

Denmark has two treatment facilities for destruction of ODSs - Kommune Kemi and Uniscrap A/S. All ODSs to be disposed are sent to these plants.

Kommune Kemi (KK) 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. Treatment of substances at KK does not lead to emissions of ODS.

Uniscrap A/S register the specific annual quantities of individual substances disposed at the facility.

The ODSs disposed in 2006 are shown in the table below.

Table 3.3 Disposed ODSs in 2006, tonnes.

Some of the HCFC-22 originates from disposed HFC blends (HFC-401a, HFC-402a, HFC-408a, HFC-409a).

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Version 1.0 May 2008, © Danish Environmental Protection Agency