# PM2.5, European air quality data for 2018, (interpolated data), Jan. 2021

The data set provides concentrations for the air pollutants PM2.5 at 1 km grid 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 2018. It provides estimates for human health related indicators of pollutants PM2.5 (annual average) for the year 2018.

This data set is used to estimate population and vegetation exposure to air pollution, as an input to the indicator CSI005 (Exposure of Europe's ecosystems to ozone) and for the health impact assessments published in the Air Quality in Europe reports. The methodology and the corresponding maps can be found in the 2020 Eionet report "European air quality maps for 2018. PM10, PM2.5, Ozone, NO2 and NOx Spatial estimates and their uncertainties" (ETC/ATNI Report 10/20) available at https://www.eionet.europa.eu/etcs/etc-atni/products/etc-atni-reports/etc-atni-report-10-2020-european-air-quality-maps-for-2018-pm10-pm2-5-ozone-no2-and-nox-spatial-estimates-and-their-uncertainties-1.https://sdi.eea.europa.eu/geonetwork/srv/api/records/c9759c4b-17ed-4e60-9221-434b0be81fce


[More information](https://sdi.eea.europa.eu/catalogue/srv/api/records/c9759c4b-17ed-4e60-9221-434b0be81fce)
    