Concept: The Exceedence description must use an approved reporting metric, These are: Three consecutive hours in exceedance Annual mean / average , Winter Mean, Hours in exceedance in a calendar year, Days in exceedance in a calendar year, Days in exceedance averaged over 3 calendar years, Accumulated Ozone Exposure , Accumulated Ozone Exposure averaged over 5 years, Average Exposure Indicator in the cdrqaqc vocabulary

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Concept URI	http://dd.eionet.europa.eu/vocabulary/aq/cdrqaqc/G20
Preferred label	The Exceedence description must use an approved reporting metric, These are: Three consecutive hours in exceedance Annual mean / average , Winter Mean, Hours in exceedance in a calendar year, Days in exceedance in a calendar year, Days in exceedance averaged over 3 calendar years, Accumulated Ozone Exposure , Accumulated Ozone Exposure averaged over 5 years, Average Exposure Indicator
Definition	The content of ./aqd:EnvironmentalObjective/aqd:reportingMetric shall resolve to a valid concept in http://dd.eionet.europa.eu/vocabulary/aq/reportingmetric/ that must be one of http://dd.eionet.europa.eu/vocabulary/aq/reportingmetric/3hAbove http://dd.eionet.europa.eu/vocabulary/aq/reportingmetric/aMean http://dd.eionet.europa.eu/vocabulary/aq/reportingmetric/wMean http://dd.eionet.europa.eu/vocabulary/aq/reportingmetric/hrsAbove http://dd.eionet.europa.eu/vocabulary/aq/reportingmetric/daysAbove http://dd.eionet.europa.eu/vocabulary/aq/reportingmetric/daysAbove-3yr http://dd.eionet.europa.eu/vocabulary/aq/reportingmetric/maxd8hrMean http://dd.eionet.europa.eu/vocabulary/aq/reportingmetric/AOT40c http://dd.eionet.europa.eu/vocabulary/aq/reportingmetric/AOT40c-5yr http://dd.eionet.europa.eu/vocabulary/aq/reportingmetric/AEI
Notation	G20
Status	Valid
Status Modified	2023-05-04
Accepted Date	2023-05-04
Not Accepted Date
Hidden label	Codelist for reporting metric requires revision (EEA codelist is required) or unexpected option [en]
Editorial note	[Crucial]: Yes - Content check
Error type	BLOCKER