DATA: Modelling of annual pollution indicators in the Alsace region

The maps of the pollution indicators for the Alsace region are produced each year as part of European reporting. The pollution indicators taken into account concern the hourly percentile 99.8 of NO2 in µg/m³, the annual average NO2 in µg/m³, the annual average of PM10 in µg/m³, the daily percentile 90.4 of PM10 in µg/m³, the number of days exceedance of 120 µg/m³ by the daily maximums of 8h rolling hourly average ozone, the AOT vegetation in h.µg/m³ and the annual average of PM2.5 in µg/m³. The input data used in grid form are concentrations from the deterministic modelling of the PREVEST system at 3 km, refined at 1 km according to the GIRAF methodology made available by Air Rhône-Alpes, then corrected by the annual statistics of the ASPA fixed station network and the PREVEST partner networks by means of a krigage of innovations.