Data are for ozone precursors. The distance to target results are shown in green (countries need to do more to be on track to meet their ceiling in 2010) and purple (countries are on track to meet their ceiling in 2010)
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Gothenburg protocol targets are used for the non-EU countries without a NEC Directive target. Neither Iceland nor Turkey has signed the Gothenburg protocol. Lichtenstein has signed but not yet ratified the Gothenburg protocol. NOx data are not included for Liechtenstein.