1. Université Paris-Saclay, CEA, CNRS, UVSQ, Laboratoire des Sciences du Climat et de l'Environnement (LSCE/IPSL), Gif-sur-Yvette, France
2. Ricerca sul Sistema Energetico, Milan, Italy
3. AGH University of Science and Technology, 30059 Krakow, Poland
4. Department of Geography, Ludwig-Maximilians University, 80333 Munich, Germany
5. European Commission, Joint Research Centre, Ispra, Italy
6. Aix Marseille Univ, Avignon Université, CNRS, IRD, Institut Méditerranéen de Biodiversité et d'Ecologie marine et continentale (IMBE), Marseille, France
7. Empa, Swiss Federal Laboratories for Materials Science and Technology, Duebendorf, Switzerland
8. Italian Air Force Meteorological Service, Rome, Italy
9. National Research Council, Institute of Atmospheric Sciences and Climate, Bologna, Italy
10. Centre for Isotope Research (CIO), University of Groningen, Nijenborgh 6, 9747 AG Groningen, The Netherlands
11. Université Clermont Auvergne, CNRS, Laboratoire de Météorologie Physique, UMR 6016, Clermont-Ferrand, France
12. DRD/OPE, Andra, Bure, France
13. Izana Atmospheric Research Center, Meteorological State Agency of Spain, Tenerife, Spain
14. Institut de Ciencia i Tecnologia Ambientals, Universitat Autonoma de Barcelona, Barcelona, Spain
15. Agenzia Nazionale per le Nuove Tecnologie, l'Energia e lo Sviluppo Economico Sostenibile, Rome, Italy
16. National Centre for Atmospheric Science, University of East Anglia, Norwich, UK
17. Netherlands Organisation for Applied Scientific Research, Petten, The Netherlands
18. Max Planck Institute for Biogeochemistry, Jena, Germany
19. Laboratoire d'Aérologie, UPS Université Toulouse 3, CNRS (UMR5560), Toulouse, France
20. University of Heidelberg, Institut fuer Umweltphysik, Heidelberg, Germany
21. Research Centre for Astronomy and Earth Sciences, Sopron, Hungary
22. Finnish Meteorological Institute, Helsinki, Finland
23. Centre for Environmental and Climate Research, Lund University, Lund, Sweden
24. NILU - Norwegian Institute for Air Research, Oslo, Norway
25. Institute for Atmospheric and Earth System Research (INAR), University of Helsinki, Helsinki, Finland
26. Global Change Research Institute of the Czech Academy of Sciences, Brno, Czech Republic
27. Deutscher Wetterdienst, Hohenpeißenberg Meteorological Observatory, Hohenpeißenberg, Germany
28. University of Eastern Finland, Kuopio, Finland
29. University of Bern, Physics Institute, Climate and Environmental Physics Division and Oeschger Center for Climate Change Research, Bern, Switzerland
30. Swedish University of Agricultural Sciences, Unit for Field-based Forest Research, 92291 Vindeln, Sweden
31. Environmental Protection Agency, Dublin, Ireland
32. Umweltbundesamt, Berlin, Germany
33. Environmental Chemical Processes Laboratory, University of Crete, Greece
34. Department of Physical Geography and Ecosystem Science (INES), Lund University, Lund, Sweden
35. Atmospheric Chemistry Research Group School of Chemistry, University of Bristol, Bristol, UK
36. National University of Ireland Galway, Galway, Ireland
37. Climate and Health Programme (CLIMA), Barcelona Institute for Global Health (ISGLOBAL), Barcelona, Spain
38. Institució Catalana de Recerca i Estudis Avancats (ICREA), Barcelona, Spain
39. Royal Belgian Institute for Space Aeronomy (BIRA-IASB), Brussels, Belgium
40. Institute for Atmospheric and Environmental Sciences, Goethe University Frankfurt, Frankfurt am Main, Germany
41. ICOS-ERIC, Carbon Portal, Lund, Sweden