Interim European air quality maps for 2021. PM10, NO2 and ozone spatial estimates based on non-validated UTD data.

This report presents European interim air quality maps for 2021, which are based on the non-validated up-to-date (UTD) measurement data and the CAMS Ensemble Forecast modelling results, together with other supplementary data. It contains maps of PM10 and NO2 annual averages and ozone indicator SOMO35.