Multiple radon survey in spa of Loutra Edipsou (Greece).

Various investigators are involved with radon research in Greece. Numerous measurements have been reported for different regions around the country. In this study we focus on the city of Loutra Edipsou, a spa centre of about 4000 inhabitants in the northern part of the island of Evia (Greece). This city is built on an area of high geothermal activity, a fact that served as a guide to our study. The aim was to estimate the dose delivered to inhabitants, the potential alpha energy exposure of bathers and spa personnel and to investigate the radon background in this area. The detectors used were of active type. Measurements are reported for dwellings, which were grouped into two different sets: one representing typical summer periods (July and August 2002) and the other typical winter periods (October and November 2002) The Potential Alpha Energy Exposure (PAEE) of the bathers during treatment lies in the range between (45 +/- 3) and (110 +/- 5) mWLM (1 WLM = 12.97 J s m(-3)). The PAEE of the working personnel lies in the range between (34 +/- 3) and (100 +/- 20) mWLM.