# O3, European air quality data for 2024, (interpolated data), interim data, June 2025

The data set provides values for the ozone (O3) peak season combining up-to-date monitoring air quality data, chemical transport model results and other supplementary data in a ‘regression-interpolation-merging mapping’ methodology. It covers Europe for the year 2024.

This data set is used to estimate population exposure to air pollution in 2024 for the EEA´s European Air quality city viewer. The methodology can be found in the 2024 ETC HE report 2024/1 "Interim air quality maps of EEA member and cooperating countries for 2023. PM, O3, and NO2 spatial estimates.", available at https://www.eionet.europa.eu/etcs/etc-he/products/etc-he-products/etc-he-reports/etc-he-report-2024-1-interim-air-quality-maps-of-eea-member-and-cooperating-countries-for-2023-pm-o3-and-no2-spatial-estimates-pm-o3-and-no2-spatial-estimates (the corresponding 2025 report with the 2024 maps will be published at the end of 2025). 

The dataset for the 2024 O3 peak season concentrations using validated air quality data will be published later in 2026, together with the maps for the rest of O3 indicators.https://sdi.eea.europa.eu/geonetwork/srv/api/records/839407de-bb7c-4cc4-91b9-a8282b05203a


[More information](https://sdi.eea.europa.eu/catalogue/srv/api/records/839407de-bb7c-4cc4-91b9-a8282b05203a)
    