Emissions of ozone precursors, EU15

Figure Created 12 Nov 2009 Published 12 Nov 2009 Last modified 29 Nov 2012
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The targets for 2010 are the Gothenburg Protocol target (December 1999) and the more recent National Emission Ceilings Directive (NECD) Common Position targets (June 2000) for non-methane volatile organic compounds and nitrogen oxides



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Carbon monoxide has been included in the 2010 target lines assuming emissions remain constant from 1998. Weighting factors are used to derive tropospheric ozone-forming potentials (TOFP) so that emissions can be combined in terms of their contribution to tropospheric ozone: nitrogen oxides 1.22, non-methane volatile organic compounds 1.0, carbon monoxide 0.11 and methane 0.014.

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