The original data presented on this website come from the study “Premature mortality due to air pollution in European cities; an Urban Burden of Disease Assessment” (Khomenko et al., 2021), published in The Lancet Planetary Health in January 2021. The air pollution ranking was updated in November 2021 with data from “Health impacts of the new WHO air quality guidelines in European cities” (Khomenko et al., The Lancet Planetary Health, 2021).
The data on source contribution to air pollution-related mortality for each city come from the paper Spatial and sector-specific emissions contribution to ambient air pollution and mortality in European cities (Khomenko et al., 2023), published in The Lancet Public Health.