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Figure Change in energy-related emissions of ozone precursors by country, 1990-2008
The graph shows the change in energy-related emissions of ozone precursors (NOx, NMVOC, CO and CH4) each weighted by an ozone formation factor prior to aggregation to represent their respective ozone forming potentials. The relative impact of the combined contribution of NOx, NMVOC, CO and CH4 to ozone formation can be assessed based on their tropospheric ozone forming potentials (TOFP): nitrogen oxides 1.22, non-methane volatile organic compounds 1.0, carbon monoxide 0.11 and methane 0.014 (de Leeuw 2002).
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Figure Contribution of different sectors (energy and non-energy) to total emissions of tropospheric ozone precursors, 2008, EEA-32
The figure shows the emission of NOx, NMVOC, CO and CH4 in 2008
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Figure Overall change in emissions of ozone precursors by country, 1990-2007
The graph shows the change in energy-related emissions of ozone precursors (NOx, NMVOC, CO and CH4) each weighted by an ozone formation factor prior to aggregation to represent their respective ozone forming potentials. The relative impact of the combined contribution of NOx, NMVOC, CO and CH4 to ozone formation can be assessed based on their tropospheric ozone forming potentials (TOFP): nitrogen oxides 1.22, non-methane volatile organic compounds 1.0, carbon monoxide 0.11 and methane 0.014 (de Leeuw 2002).
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Figure Sectoral shares of tropospheric ozone precursors (energy and non-energy components) in total emissions, EU-27.
The emissions of ozone precursors (NOx, NMVOC, CO and CH4) are each weighted by an ozone formation factor prior to aggregation to represent their respective ozone forming potentials. The relative impact of the combined contribution of NOx, NMVOC, CO and CH4 to ozone formation can be assessed based on their tropospheric ozone forming potentials (TOFP): nitrogen oxides 1.22, non-methane volatile organic compounds 1.0, carbon monoxide 0.11 and methane 0.014.
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Figure Changes (%) in emissions of ozone precursors by source category, 1990-2007, EEA-32 (weighted by tropospheric ozone forming potential)
The graph above shows the emissions of ozone precursors (methane CH4; carbon monoxide CO; non-methane volatile organic compounds NMVOCs; and nitrogen oxides NOx) each weighted by a factor prior to aggregation to represent their respective tropospheric ozone formation potential (TOFP). The TOFP factors are: NOx 1.22, NMVOC 1, CO 0.11 and CH4 0.014 (de Leeuw 2002). Results are expressed in NMVOC equivalents (kilotonnes - kt). Data not available for Iceland (emissions of CO, NMVOC, NOx were not reported) and Malta (CO). 'Energy combustion' includes all energy-related emissions minus fugitive.
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Figure Sector contributions of ozone precursor emissions (EEA member countries)
The contribution made by different sectors to emissions of the tropospheric (ground-level) ozone precursors.
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Indicator Assessment chemical/x-pdb Emissions of ozone precursors (CSI 002/APE 008) - Assessment published Oct 2010
Emissions of all ground-level ozone precursor pollutants have decreased across the EEA-32 region between 1990 and 2008; nitrogen oxides (NO X ) by 34%, non-methane volatile organic compounds (NMVOCs) by 45%, carbon monoxide (CO) by 56% and methane (CH 4 ) by 26%. This decrease has been achieved mainly as a result of the introduction of catalytic converters for vehicles. These changes have significantly reduced emissions of NO X and CO from the road transport sector, the main source of ozone precursor emissions. The EU-27 is still some way from meeting its 2010 target to reduce emissions of NO X , one of the two ozone precursors (NO X and NMVOC) for which emission limits exist under the EU's NEC Directive (NECD). Whilst total NMVOC emissions in the EU-27 were below the NECD limit in 2008, a number of individual Member States anticipate missing their ceilings for one or either of these two pollutants. Of the three non-EU countries having emission ceilings set under the UNECE/CLRTAP Gothenburg protocol (Liechtenstein, Norway and Switzerland), all three countries reported NMVOC emissions in 2008 that were lower than their respective 2010 ceilings. However both Liechtenstein and Norway reported NO x emissions in 2008 that were substantially higher than their respective 2010 ceilings.
Located in Data and maps Indicators Emissions of ozone precursors
Figure Change in ozone precursors emissions for each sector and pollutant between 1990 and 2006
No data available for Iceland.
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Figure Distance-to-target for EEA member countries
The 'distance to target' results are shown in light yellow (countries need to do more to be on track to meet their ceiling in 2010) and green (countries are on track to meet their ceiling in 2010)
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Figure Troff document Contribution to total change in ozone precursors emissions for each sector and pollutant
'Contribution to change' plots show the contribution to the total emission change between 1990-2006 made by a specified sector/ pollutant
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European Environment Agency (EEA)
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Denmark
Phone: +45 3336 7100