1. Nuclear Safety and Radioprotection Institute (IRSN), Laboratory for Continental and Marine Radioecological Studies (LERCM), BP 3 - 13115 St Paul lez Durance CEDEX, France
2. Austrian Agency for Health and Food Safety (AGES), Wieningerstrasse 8, A-4020 Linz, Austria
3. National Radiation Protection Institute (SURO), Bartoskova 1450/28, 140 00 Prague, Czech Republic
4. Institute
of Applied Radiation Chemistry, Technical University of Lódz, ul. Zeromskiego 116, 90-924 Lódz, Poland
5. Environmental Radioactivity Laboratory, Institute of Nuclear & Radiological Sciences, Energy & Safety, N.C.S.R. ″Demokritos″, 15310 Aghia Paraskevi, Attiki, Greece
6. Helmholtz Zentrum München (HMGU), Ingolstädter Landstr. 1, 85764 Neuherberg, Germany
7. Nuclear Safety and Radioprotection Institute (IRSN), Environmental Radioactivity Measurements Laboratory (LMRE), Bâtiment 501, le bois des Rames -91400 Orsay, France
8. Nuclear Safety and Radioprotection Institute (IRSN), Aerosol Physics and Metrology Laboratory (LPMA), BP 68 - 91192 Gif-sur-Yvette CEDEX, France