Radon Concentration and Effective Dose Assessment in Coves de Campanet (Mallorca Island, Spain)

This study documents measured radon concentration levels in Coves de Campanet, a touristic cave from Mallorca (Spain). The mean annual concentration at eight different locations within the cave varied between 644.37 and 1,694.40 Bq m−3. As expected, a seasonal variation was observed, with higher radon levels during summer and lower values during the winter season. The integrated measurements were confirmed by continuous radon monitoring in two selected locations. The effective dose expected to be received by tour guides within the cave ranged from 0.72 to 1.89 mSv y−1 with an annual dose of 1.23 mSv y−1