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

Polycyclic Aromatic Hydrocarbons - PAHs

Source : CITEPA / SECTEN format - April 2010

Survey period : since 1990

Emissions Variations
Emissions en 2008 : 19 t Variation 2008 / 1990 : -52 %
Maximum observed : 46 t in 1991 Variation 2008 / maximum : -59 %
Minimum observed : 19 t in 2007 Variation 2008 / minimum : +1 %

Main emitters in 2008 (top 5 of total emissions) :
 

1 - Residential 67 %
2 - Catalysed diesel-engined passenger cars 12 %
3 - Catalysed diesel-engined light duty vehicles 5.0 %
4 - Diesel-engined heavy duty vehicles 2.7 %
5 - Non-catalysed diesel-engined passenger cars 2.5 %

Comments

PAH emissions (Polycyclic Aromatic Hydrocarbons) presented are : benzo(a)pyrene, benzo(b)fluoranthene, benzo(k)fluoranthene and indeno(1,2,3-cd)pyrene. These 4 PAHs are those defined by the Aarhus protocol and by the 850/2008 regulation of the European parliament and the Council of the 29 April 2004.

Emissions of those 4 PAHs were estimated at 19 t in 2008.

It is presumed that PAHs are emitted in large amounts during combustion of fuels and especially biomass when the process is not well controlled, for instance with open combustion plants in the residential sector.

The two major sources of PAH emissions were by importance order :

  • residential/tertiary : 68% of total emissions in 2008 (biomass combustion),
  • road transport : 25%, especially diesel vehicles.

The other sectors contributed to the emissions for a low level (less than 3%).

Between 1990 and 2008, emissions accounted a reduction of 52% (-20 t). On the whole, emissions decreased in all the sectors, except road transport.

Changes in emissions depend on weather conditions due to the close link between emissions and energy consumption, regarding the year 1991.

Progressive installation of appliances biomass combustion more efficient in the domestic sector should lead to gradually reduce emissions in the future.

 
 
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