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Air emissions - Annual national data - GHG
  
 
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Page last updated : 30/06/2010

Sulphur hexafluoride - SF6

Source : CITEPA / SECTEN format - April 2010

Survey period : since 1990

Emissions Variations
Emissions in 2008 : 691 kt CO2e Variation 2008 / 1990 : -66 %
Maximum observed : 2 226 kt CO2e in 1998 Variation 2008 / maximum : -69 %
Minimum observed : 691 kt CO2e in 2008 Variation 2008 / minimum : 0 %

Main emitters in 2008 (top 3 of total emissions) :
  1 - Non-ferrous metal smelting 39 %
included :
 
  - Second fusion of magnesium 39 %
2 - Capital goods and mobile machinery 33 %
3 - Electricity production 25 %

Comments

In 2008, SF6 emissions were estimated at 691 kt CO2 equivalent (CO2e) or 29 t in mass.

Just three sectors contributed to SF6 emissions in mainland France, which are by order of importance in 2008 :

  • manufacturing industry : 74% of total emissions in mainland France,
  • energy conversion : 25%,
  • residential/tertiary : 1%.

These emissions have fallen since 1990 : -869 kt CO2e (or -36 t in mass), a decrease of 63% between 1990 and 2008. They are mainly caused by the magnesium production , manufacture of electric equipment and semiconductors.

The evolution observed came from :

  • in one hand, the SF6 consumption reduction in the magnesium production, as well in foundries than to the only factory of first fusion which closed-down in 2002. It is important to stress that this factory has been converted in recycling magnesium and is consuming SF6 at the same level than in 2000 since the year 2003. Since 2006, SF6 were not used anymore as the new owner used another product (NaCl).
  • in the other hand, from the variations of the electric equipment activity (a great fall of 112 kt CO2e has been observed since 1990 due to real improvements).

Emissions have slightly reduced in energy conversion between 1995 and 1998 mainly in a result of a better air-tight of the electric equipments and maintenance procedures despite the increase of the fleet. Since 1998, the fleet of equipment loaded in SF6 reduced and improvement of these equipments allowed a reduction of the emissions, especially through a voluntary agreement signed in 2004 to limit emissions during the construction, the duration and the end of life of the equipments.

From 1999, emissions began to fall in the tertiary sector, mainly as a result of this substance no longer being used for the production of some sports shoes.

 
 
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