# O3, European air quality data for 2025, (interpolated data), interim data, June 2026

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 2025.

The dataset for the 2025 O3 annual average concentrations using validated air quality data will be published later in 2027https://sdi.eea.europa.eu/catalogue/srv/api/records/93ad2d9c-973a-48ab-b824-4ec10783d4e2?language=all


[More information](https://sdi.eea.europa.eu/catalogue/srv/api/records/93ad2d9c-973a-48ab-b824-4ec10783d4e2)
    