Radon Survey in Bank Buildings of Campania Region According to the Italian Transposition of Euratom 59/2013

222Rn gas represents the major contributor to human health risk from environmental radiological exposure. In confined spaces radon can accumulate relatively high levels so that mitigation actions are necessary. The Italian legislation on radiation protection has set a reference value for activity concentration of at 300 Bq/m3. this study, measurements annual 62 bank buildings spread throughout Campania region (Southern Italy) were carried out. Using devices based CR-39 solid-state nuclear track detectors, level was assessed in 136 (127 underground floors and 9 ground floors) frequented by workers and/or public. survey parameters considered analysis results were: floor types, wall cladding materials, number openings, door/window opening duration air exchange. Radon found be between 17 680 Bq/m3, with an average 130 Bq/m3 standard deviation 120 About 7% gave above showed exchange have most significant influence. This study highlighted importance assessment indoor work environments particular, protect public radon-induced effects.