Methodology for preparing a spatial representativeness area map
Article 8
1. Without prejudice to Article 4, Member States shall prepare a map that delineates the spatial representativeness areas of all sampling points for a given pollutant within a given zone or alternative geographical area in accordance with the methodology laid down in this Article. 2. When, following the methodology laid down in Articles 5 to 7, a location or an area is identified for the spatial representativeness area of more than one sampling point, Member States shall either keep the location or the entire overlapping area in the spatial representativeness areas of all sampling points in question, or include it only in the spatial representativeness area of the sampling point which is most similar to the location or the area in question in accordance with paragraph 3 of this Article. 3. The similarity between sampling points and between a sampling point and a modelled area referred to in paragraph 2 shall be assessed in terms of sampling point type, location characteristics, relevant emission sources, and concentration levels. 4. Once the spatial representativeness area of all sampling points for a given pollutant is assessed in accordance with the provisions laid down in Articles 4 to 8, Member States shall prepare the map of spatial representativeness areas of the sampling points referred to in paragraph 1 of this Article. The map of spatial representativeness areas shall be prepared using data from one individual year within the last five years. Member States may use a suitable method, including the use of data from multiple years, to account for inter-annual variability, provided that the reliability of the method is demonstrated. Member States shall review the spatial representativeness area map, at least following each review performed in accordance with point D.9 of Annex IV to Directive (EU) 2024/2881, and also when there are relevant changes to the monitoring network or relevant substantial changes in the pollution sources or in the meteorology.