This data set presents health risk calculation of exposure to three main pollutants (PM2.5, PM10, NO2 and O3) at NUTS3 and Country and City levels. The concentrations data are taken from the ETC/ATNI interpolated maps (ETC/ATNI Eionet Reports 1/2020 and 1/2021 and references therein). The methodology is as described in ETC/ATNI Eionet Report 10/2021, aggregating at NUTS3 and country levels.