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Page last updated :
15/05/2008
Non
Methane Organic Volatile Compounds - NMVOCs
Source :
CITEPA / CORALIE SECTEN format - last updated 28 February 2008
Survey period
: since 1988
| Emissions |
Variations |
| Emissions in 2006 : 1 336 kt |
Variation 2006 / 1990 : -51 % |
| Maximum observed : 2 793 kt in 1991 |
Variation 2006 / maximum : -52 % |
| Minimum observed : 1 336 kt in 2006 |
Variation 2006 / minimum : 0 % |
| Main
emitters in 2006 (top 5 of total emissions) : |
| |
1 - Residential 31
%
2 - Crops 12 %
3 - Construction 9.1 %
4 - Other manufacturing industry 8.4 %
5 - Catalysed gasoline-engined passenger cars 5.9 % |
Comments
NMVOCs emissions amounted to approximately 1 336 kt in 2006. They were decreasing regularly since 1988
(-51%, i.e. -1 385 kt between 1988 and 2006).
The distribution of the emissions among the sectors has sharply changed during the period observed. In 1990, road transport was the main sector with 38% of total emissions, whereas in 2006, residential/tertiary is the first sector with 32% (road transport contributing only for 16%).
NMVOCs emissions resulting from fossil fuel combustion are generally low except for road vehicle engines. Specific emissions are generally higher when using biomass fuels.
A major proportion of NMVOCs is generated by the evaporation process during manufacturing and processing of products containing solvents.
Biotic sources are also significant in relation to total emissions. A slight part of biotic sources emissions comes from the agriculture/forestry sector. The most part comes from forests and grasslands (from 1 200 kt to 1 500 kt per year during the period), but those emissions are accounted in the memo items. However, these emissions contribute to the photochemical reactions in the atmosphere which lead to the formation of tropospheric ozone in particular.
A decrease of the emissions between 1988 and 2006 has been observed :
- in the road transport sector (-80%, i.e. -882 kt), mainly due to cars being fitted with catalytic converters since 1993, but also due to the increase of diesel-engined vehicles emitting less NMVOC.
- in energy conversion since progress achieved in petroleum product storage and distribution
(-75%, i.e. -156 kt),
- in manufacturing industry due to, the substitution of products by other containing less solvent, emission reduction techniques used for some processes and improvements made in a lot of sectors to reduce source emissions (-33%, i.e. -200 kt),
- in residential/tertiary sector mainly imputable to the substitution of products by other containing less solvent or no solvent and improvements made in combustion of biomass by more preformed and less emitting equipments (-32%, i.e. -170 kt).
Further significant improvements are expected in the coming years and therefore, will facilitate compliance with the target set for 2010 by the Directive on National Emission Ceilings (a reduction of 21% of the emissions compared to the current level).
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