[1] Kings Coll London, Dept Geog, London, England
[2] Univ Ioannina, Dept Astrogeophy, Ioannina, Greece
[3] Local Hlth Authority ASL RM E, Dept Epidemiol, Rome, Italy
[4] Inst Geog & Spatial Organiosat, Dept Climatol, Warsaw, Poland
[5] Environm Agcy, Climatolog Dept, Meteorol Off, Ljubljana, Slovenia
[6] Inst Atmospher Phys, Prague, Czech Republic
[7] Univ Reading, Dept Meteorol, Reading, Berks, England
[8] German Weather Serv, Freiburg, Germany
[9] Natl Inst Environm Hlth, Dept Biol Monitoring, Budapest, Hungary