- European air quality index (based on pollutant concentrations in µg/m3): hourly measurements for the pollutant NO2 for the most recent hour for each station - The sub-index NO2 is available according to the type of station (industrial, background or traffic) in accordance with the methodology for calculating the European air quality index for the measuring stations throughout the Greater Region. - Data depth: The most recent index for the last 3 hours for each station is available hourly. If the calculation of the sub-index is not possible due to lack of data, its value is marked by a grey dot in the symbology of the map (data not available). - Data sources: ATMO Grand Est; Agence Wallonne de l'Air et du Climat - AWAC; Landesamt für Umwelt- und Arbeitsschutz Saarland - IMMESA; Landesamt für Umwelt Rheinland-Pfalz - ZIMEN; Administration de l'environnement Luxembourg. Harmonization: ATMO Grand Est and GIS-GR 2020

- Partners of the network of Education for Sustainable Development (BNE-EDD) in the Greater Region - Source: Réseau des partenaires de formation EDD de la Grande Région / Bildungsparter BNE in der Großregion

- European air quality index (based on pollutant concentrations in µg/m3): measurements over the last 3 days for each station - The sub-indices O3, PM10, PM2.5, NO2, and SO2 are available according to the type of station (industrial, background or traffic) in accordance with the methodology for calculating the European air quality index for the measuring stations throughout the Greater Region. - Data sources: ATMO Grand Est; Agence Wallonne de l'Air et du Climat - AWAC; Landesamt für Umwelt- und Arbeitsschutz Saarland - IMMESA; Landesamt für Umwelt Rheinland-Pfalz - ZIMEN; Administration de l'environnement Luxembourg. Harmonization: ATMO Grand Est and GIS-GR 2020

- European air quality index (based on pollutant concentrations in µg/m3): hourly measurements for the pollutant PM10 for the most recent hour for each station - The sub-index PM10 is available according to the type of station (industrial, background or traffic) in accordance with the methodology for calculating the European air quality index for the measuring stations throughout the Greater Region. - Data depth: The most recent index for the last 3 hours for each station is available hourly. If the calculation of the sub-index is not possible due to lack of data, its value is marked by a grey dot in the symbology of the map (data not available). - Data sources: ATMO Grand Est; Agence Wallonne de l'Air et du Climat - AWAC; Landesamt für Umwelt- und Arbeitsschutz Saarland - IMMESA; Landesamt für Umwelt Rheinland-Pfalz - ZIMEN; Administration de l'environnement Luxembourg. Harmonization: ATMO Grand Est and GIS-GR 2020

- European air quality index (based on pollutant concentrations in µg/m3): hourly measurements for the pollutant PM2.5 for the most recent hour for each station - The sub-index PM2.5 is available according to the type of station (industrial, background or traffic) in accordance with the methodology for calculating the European air quality index for the measuring stations throughout the Greater Region. - Data depth: The most recent index for the last 3 hours for each station is available hourly. If the calculation of the sub-index is not possible due to lack of data, its value is marked by a grey dot in the symbology of the map (data not available). - Data sources: ATMO Grand Est; Agence Wallonne de l'Air et du Climat - AWAC; Landesamt für Umwelt- und Arbeitsschutz Saarland - IMMESA; Landesamt für Umwelt Rheinland-Pfalz - ZIMEN; Administration de l'environnement Luxembourg. Harmonization: ATMO Grand Est and GIS-GR 2020

- European air quality index (based on pollutant concentrations in µg/m3): measurements over the last 100 days for each station - The sub-indices O3, PM10, PM2.5, NO2, and SO2 are available according to the type of station (industrial, background or traffic) in accordance with the methodology for calculating the European air quality index for the measuring stations throughout the Greater Region. - Data sources: ATMO Grand Est; Agence Wallonne de l'Air et du Climat - AWAC; Landesamt für Umwelt- und Arbeitsschutz Saarland - IMMESA; Landesamt für Umwelt Rheinland-Pfalz - ZIMEN; Administration de l'environnement Luxembourg. Harmonization: ATMO Grand Est and GIS-GR 2020

- European air quality index (based on pollutant concentrations in µg/m3): hourly measurements for the pollutant O3 for the most recent hour for each station - The sub-index O3 is available according to the type of station (industrial, background or traffic) in accordance with the methodology for calculating the European air quality index for the measuring stations throughout the Greater Region. - Data depth: The most recent index for the last 3 hours for each station is available hourly. If the calculation of the sub-index is not possible due to lack of data, its value is marked by a grey dot in the symbology of the map (data not available). - Data sources: ATMO Grand Est; Agence Wallonne de l'Air et du Climat - AWAC; Landesamt für Umwelt- und Arbeitsschutz Saarland - IMMESA; Landesamt für Umwelt Rheinland-Pfalz - ZIMEN; Administration de l'environnement Luxembourg. Harmonization: ATMO Grand Est and GIS-GR 2020

- European air quality index (based on pollutant concentrations in µg/m3): hourly measurements for the pollutant SO2 for the most recent hour for each station - The sub-index SO2 is available according to the type of station (industrial, background or traffic) in accordance with the methodology for calculating the European air quality index for the measuring stations throughout the Greater Region. - Data depth: The most recent index for the last 3 hours for each station is available hourly. If the calculation of the sub-index is not possible due to lack of data, its value is marked by a grey dot in the symbology of the map (data not available). - Data sources: ATMO Grand Est; Agence Wallonne de l'Air et du Climat - AWAC; Landesamt für Umwelt- und Arbeitsschutz Saarland - IMMESA; Landesamt für Umwelt Rheinland-Pfalz - ZIMEN; Administration de l'environnement Luxembourg. Harmonization: ATMO Grand Est and GIS-GR 2020

Final product of the b-solutions project GeoConnectGR: linear watercourses - Harmonized geodata of the hydrographic network of the Greater Region (scale 1:25.000 - 1:50.000) - Sources: LVGL Saarland, LVermGeo Rheinland-Pfalz, NGI Belgium, IGN France, ACT Luxembourg - Harmonization: Federal Agency for Cartography and Geodesy (BKG) based on the data model Core Reference Data (CRD) developed by EuroGeographics - This data is published for non-commercial uses under the licence CC BY-NC 4.0: https://creativecommons.org/licenses/by-nc/3.0/legalcode

- European air quality index (based on pollutant concentrations in µg/m3): hourly measurements for all pollutants for the most recent hour for each station - The sub-indices O3, PM10, PM2.5, NO2, and SO2 are available according to the type of station (industrial, background or traffic) in accordance with the methodology for calculating the European air quality index for the measuring stations throughout the Greater Region. - Data depth: The most recent index for the last 3 hours for each station is available hourly. If the calculation of the index is not possible due to lack of data, its value is marked by a grey dot in the symbology of the map (data not available). In the absence of measurements of certain pollutants (missing sub-indices), the overall index is still calculated on the basis of the pollutants measured at the station concerned. - Data sources: ATMO Grand Est; Agence Wallonne de l'Air et du Climat - AWAC; Landesamt für Umwelt- und Arbeitsschutz Saarland - IMMESA; Landesamt für Umwelt Rheinland-Pfalz - ZIMEN; Administration de l'environnement Luxembourg. Harmonization: ATMO Grand Est and GIS-GR 2020