1. Institut de Radioprotection et de Sûreté Nucléaire, (IRSN), Fontenay-aux-Roses, 92262, France
2. Leibniz Universität Hannover, Institute of Radioecology and Radiation Protection, Hannover, 30419, Germany
3. Physikalisch-Technische Bundesanstalt (PTB), Braunschweig, 38116, Germany
4. The Henryk Nievodniczanski Institute of Nuclear Physics, Polish Academy of Sciences (IFJ), Kraków, 31-342, Poland
5. University of Bremen, Institute of Environmental Physics, Bremen, 28359, Germany
6. Bundesamt für Strahlenschutz (BfS), Freiburg, 79098, Germany
7. Deutscher Wetterdienst (DWD), Offenbach, 63067, Germany
8. National Radiation Protection Institute (NRPI), Prague, 140 00, Czech Republic
9. Norwegian Radiation Protection Authority (NRPA), Svanvik, NO-9925, Norway
10. Pacific Northwest National Laboratory (PNNL), P.O. Box 999, Richland, Washington 99352, United States
11. Institute of Nuclear and Radiological Sciences & Technology, Energy & Safety, NCSR “Demokritos”, Environmental Radioactivity Laboratory, Ag. Paraskevi, Attiki, 15310, Greece
12. Agenzia Regionale per la Protezione dell’Ambiente (ARPA Lombardia), Milan, 20129, Italy
13. Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Madrid, 28040, Spain
14. ″Frédéric Joliot-Curie” National Research Institute for Radiobiology and Radiohygiene, (OSSKI), POB 101, Budapest, H-1775, Hungary
15. Central Laboratory for Radiological Protection (CLOR), Warsaw, PL 03-134, Poland
16. Radiation and Nuclear Safety Authority (STUK), P.O. Box 14, Helsinki, 00811, Finland
17. Radiation Protection and Radiochemistry, Austrian Agency for Health and Food Safety (AGES), Wien, 1220, Austria
18. Vinča Institute of Nuclear Sciences, Belgrade, 11001, Serbia
19. Comenius University, Department of Nuclear Physics and Biophysics, Bratislava, 84248, Slovakia
20. Radioecology and Radon, Austrian Agency for Health and Food Safety (AGES), Linz, 4020, Austria
21. Helmholtz Zentrum München, German Research Center for Environmental Health (HMGU), Neuherberg, 85764, Germany
22. Health Canada (HC-SC), Radiation Protection Bureau, Ottawa, A.L. 6302A, Ontario K1A 1C1, Canada
23. Jozef Stefan Institute (IJS), Ljubljana, 1000, Slovenia