This dataset includes gridded daily averaged atmospheric composition for the UK for key air pollutants nitrogen, sulphur, particulates and ozone for the years 2000, 2015 and 2022. The dataset was generated with the European Monitoring and Evaluation Programme for the UK (EMEP4UK) model version 5.0, modified to improve wet deposition rates. The underlying meteorology was generated using the Weather Research and Forecasting (WRF) model version 4.4.2. These model outputs were generated as part of the National Capability for UK Challenges (NC-UK) programme, funded by the UK Natural Environment Research Council (NERC), and the National Focal Centre (NFC) work on Mapping and Modelling Critical Loads and Critical Levels, funded by the UK Department for Environment, Food & Rural Affairs (Defra). Full details about this dataset can be found at https://doi.org/10.5285/0675cc95-ea59-4633-a1f1-4bfe7159375a
