Estimate of radon exposure in geothermal SPAs in Poland
More details
Hide details
Nofer Institute of Occupational Medicine, Łódź, Poland (Department of Radiological Protection)
Katarzyna Walczak   

Nofer Institute of Occupational Medicine, Department of Radiological Protection, św. Teresy 8, 91-348 Łódź, Poland
Int J Occup Med Environ Health 2016;29(1):161–166
Objectives: Geothermal waters may contain soluble, radioactive radon gas. Spa facilities that use geothermal water may be a source of an increased radiation dose to people who stay there. It has been necessary to assess the exposure to radon among people: workers and visitors of spa centers that use geothermal waters. Material and Methods: In 2013, workers of the Nofer Institute of Occupational Medicine measured concentrations of radon over the geothermal water surfaces in 9 selected Polish spa centers which use geothermal water for recreational and medicinal purposes. The measurements were performed by active dosimetry using Lucas scintillation cells. Results: According to our research, the doses received by the personnel in Polish geothermal spas are < 0.6 mSv/year. In 1 of the investigated spas, the estimated annual dose to the staff may exceed 3 mSv/year. Conclusions: In Polish geothermal spas, neither the workers nor the visitors are at risk of receiving doses that exceed the safe limits.