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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.
Located in Data and maps Maps and graphs
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 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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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)
Located in Data and maps Maps and graphs
Figure Emissions by sector of ozone precursors
Due to numerical rounding, values may not add exactly to 100%
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Indicator Assessment Emissions of ozone precursors (CSI 002/APE 008) - Assessment published Dec 2011
Emissions of the main ground-level ozone precursor pollutants have decreased across the EEA-32 region between 1990 and 2009; nitrogen oxides (NO X ) by 41%, non-methane volatile organic compounds (NMVOCs) by 51%, carbon monoxide (CO) by 61%, and methane (CH 4 ) by 27%. 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 National Emissions Ceiling Directive (NECD). Whilst total NMVOC emissions in the EU-27 were below the NECD limit in 2009, 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 for 2010 set under the UNECE/CLRTAP Gothenburg protocol (Liechtenstein, Norway and Switzerland), all three countries reported NMVOC emissions in 2009 that were lower than their respective 2010 ceilings. However both Liechtenstein and Norway reported NO X emissions in 2009 that were substantially higher than their respective 2010 ceilings.
Located in Data and maps Indicators Emissions of ozone precursors
Indicator Assessment Emissions of ozone precursors (CSI 002/APE 008) - Assessment published Dec 2012
Emissions of the main ground-level ozone precursor pollutants have decreased across the EEA-32 region between 1990 and 2010; nitrogen oxides (NO X ) by 42%, non-methane volatile organic compounds (NMVOC) by 53%, carbon monoxide (CO) by 61%, and methane (CH 4 ) by 32%. This decrease has been achieved mainly as a result of the introduction of catalytic converters for vehicles, which has significantly reduced emissions of NO X and CO from the road transport sector, the main source of ozone precursor emissions. The EU-27 as a whole has not met 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 2010, a number of individual Member States did not meet their ceilings for one or both of these two pollutants. Of the three non-EU countries having emission ceilings for 2010 set under the UNECE/CLRTAP Gothenburg protocol (Liechtenstein, Norway and Switzerland), all reported NMVOC emissions in 2010 that were lower than their respective ceilings, however Liechtenstein and Norway reported NO X emissions higher than their ceiling for 2010.
Located in Data and maps Indicators Emissions of ozone precursors
Indicator Assessment Emissions of ozone precursors (CSI 002/APE 008) - Assessment published Jun 2014
Emissions of the main ground-level ozone precursor pollutants have decreased across the EEA-33 region between 1990 and 2011; nitrogen oxides (NO X ) by 44%, non-methane volatile organic compounds (NMVOC) by 57%, carbon monoxide (CO) by 61%, and methane (CH 4 ) by 29%. This decrease has been achieved mainly as a result of the introduction of catalytic converters for vehicles, which has significantly reduced emissions of NO X  and CO from the road transport sector, the main source of ozone precursor emissions. The EU-28 as a whole reported 2011 emissions at 4% below the 2010 NECD ceiling for NO X , one of the two ozone precursors (NO X  and NMVOC) for which emission limits exist under the EU's NEC Directive (NECD). Total NMVOC emissions in the EU-28 were 22% below the 2010 NECD limit in 2011, however, seven of individual Member States did not meet their ceilings for one or both of these two pollutants. Of the three non-EU countries having emission ceilings for 2010 set under the UNECE/CLRTAP Gothenburg protocol (Liechtenstein, Norway and Switzerland), all reported NMVOC emissions in 2011 that were lower than their respective ceilings, however Liechtenstein and Norway reported 2011 NO X  emissions higher than their ceiling for 2010.
Located in Data and maps Indicators Emissions of ozone precursors
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 Emissions of ozone precursors
The 'with measures' (WM) projections reported by Member States take into account currently implemented and adopted policies and measures
Located in Data and maps Maps and graphs
European Environment Agency (EEA)
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Denmark
Phone: +45 3336 7100