(4)Points D.2, D.9 and D.10 of Annex IV to Directive (EU) 2024/2881 require Member States to publish information on the spatial representativeness of all sampling points at least every five years. Furthermore, point B.2(i) of Annex IV to Directive (EU) 2024/2881 requires Member States to clearly define the area which each sampling point is representative of in the zones where the level of air pollutants is above the assessment threshold. The assessment of spatial representativeness of sampling points is to be used in various situations as laid down in Article 8(5) and (6), Article 9(7), and point B.2(i) of Annex IV to Directive (EU) 2024/2881. In order to ensure that the spatial representativeness of sampling points is determined in a comparable manner across Member States, it is appropriate to provide technical details on how to perform the spatial representativeness assessment. Therefore, it is necessary to set out the methods and the criteria for assessing the spatial representativeness of sampling points and to establish a step-by-step methodology for this assessment via measurements and modelling applications. Furthermore, in order to understand to which extent a zone or an alternative geographical area is covered by the different areas of representativeness determined for sampling points, it is necessary to set out the methodology for producing a spatial representativeness area map.
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