# NOx, European air quality data for 2023, (interpolated data), June 2025

The data set provides concentrations for the vegetation related indicator of NOx (annual average) at 2 km2 grid combining 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 2023.

This data set is used to estimate vegetation exposure to air pollution. The methodology can be found in the 2024 ETC HE report 2024/4 "Air quality maps of EEA member and cooperating countries for 2022. PM10, PM2.5, O3, NO2, NOx and BaP spatial estimates and their uncertainties.", available at https://www.eionet.europa.eu/etcs/etc-he/products/etc-he-products/etc-he-reports/etc-he-report-2024-4-air-quality-maps-of-eea-member-and-cooperating-countries-for-2022-pm10-pm2-5-o3-no2-nox-and-bap-spatial-estimates-and-their-uncertainties (the corresponding 2025 report with the 2023 maps will be published at the end of 2025).https://sdi.eea.europa.eu/geonetwork/srv/api/records/a2c980b7-5632-4ff3-bf0c-b75e627339cd


[More information](https://sdi.eea.europa.eu/catalogue/srv/api/records/a2c980b7-5632-4ff3-bf0c-b75e627339cd)
    