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eu27 estimates are population weighted-averages of the latest available values.
eu-27 estimates are population weighted-averages of the latest available values.

medlemsstaterne kan anvende en lavere mindste tidsdækning end den, der er angivet i tabellen, dog ikke lavere end 14 % for faste målinger og 6 % for indikative målinger, hvis de kan godtgøre, at den udvidede usikkerhed på 95 % for det årlige gennemsnit, beregnet ud fra datakvalitetsmålsætningerne i tabellen i henhold til iso 11222:2002 — »determination of the uncertainty of the time average of air quality measurements«, opfyldes.
member states may apply a minimum time coverage lower than indicated in the table, but not lower than 14 % for fixed measurements and 6 % for indicative measurements provided that they can demonstrate that the 95 % expanded uncertainty for the annual mean, calculated from the data quality objectives in the table according to iso 11222:2002 — ‘determination of the uncertainty of the time average of air quality measurements’ will be met.