Overall change in emissions of ozone precursors by country, 1990-2006

Figure Created 24 Mar 2009 Published 24 Mar 2009 Last modified 29 Nov 2012
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The graph shows the 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


European data


Additional information

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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