Emissions of ozone precursors, EU15
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.
For references, please go to http://www.eea.europa.eu/data-and-maps/figures/emissions-of-ozone-precursors-eu15-1 or scan the QR code.
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