# NOx, European air quality data for 2021, (interpolated data), Jan 2023

The data set provides concentrations for the air pollutant NOx combining monitoring air quality data in a ‘regression-interpolation-merging mapping’ methodology and the observational values of the air quality monitoring stations used in the interpolation. It covers Europe for the year 2021. It provides estimates for vegetation related indicator of pollutant NOx (annual average) for the year 2021.

This data set is used to estimate vegetation exposure to air pollution. The methodology and the corresponding maps can be found in the 2023 Eionet report "Air quality maps of EEA member and cooperating countries for 2021. PM10, PM2.5, O3, NO2, NOx and BaP spatial estimates and their uncertainties." (ETC HE Report 2023/3) available at https://www.eionet.europa.eu/etcs/etc-he/products/etc-he-products/etc-he-reports/etc-he-report-2023-3-air-quality-maps-of-eea-member-and-cooperating-countries-for-2021-pm10-pm2-5-o3-no2-nox-and-bap-spatial-estimates-and-their-uncertainties.https://sdi.eea.europa.eu/geonetwork/srv/api/records/a7bddd93-05ca-40ff-bb4f-2c901736acd0


[More information](https://sdi.eea.europa.eu/catalogue/srv/api/records/a7bddd93-05ca-40ff-bb4f-2c901736acd0)
    