Simulación de los impactos de las medidas del Programa Nacional de Control de la Contaminación Atmosférica (2023-2030) con el modelo de química y transporte CHIMERE

Abstract

The Spanish National Air Pollution Control Programme includes reductions in emissions of NOx, SO2, PM2.5, NH3 and non-methane volatile organic compounds (NMVOC) up to 2030. The two emission-reduction scenarios proposed in this Programme (WEM: With Existing Measures and WAM: With Additional Measures) were simulated with the chemistry transport model CHIMERE (v2013) at a resolution of approximately 8 km × 8 km for a domain covering the Iberian Peninsula and Balearic Islands. The year 2021 was simulated as a reference scenario, using the reported annual emissions in the Spanish National Emission Inventory and the meteorology from the European Centre (ECMWF IFS) for the same year. Also, the sensibility to other factors, such as the model version, the driving meteorology and the chemical mechanism, was evaluated by using a different version of CHIMERE (v2017), different modelled meteorology (WRF), different meteorological years and a different chemical mechanism (SAPRC-07 instead of MELCHIOR2).