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Managing Radon Exposure in Tapolca Show Cave: Worker Safety Measures

This study assesses radiation doses from radon in Tapolca Show Cave, Hungary, impacting workers. Results show need for personal dosimetry due to elevated radon levels, emphasizing safety protocols for caves and mines.

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Managing Radon Exposure in Tapolca Show Cave: Worker Safety Measures

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  1. RADIATION DOSE ORIGINATING FROM RADON AND RADON PROGENY EFFECTING WORKERS IN THE SHOW CAVE OF TAPOLCA (HUNGARY) T. Kovács1, J. Somlai1, A. Kopek2, G. Szeiler1, G. Pomázi, Z. Sas3, 1University of Pannonia, Institute of Radiochemistry and Radioecology, Veszprém (Hungary) 2 Balaton Uplands National Park, Csopak (Hungary) 3 Mecsek-ÖKO Zrt, Pécs (Hungary) 4Social Organization for Radioecological Cleanliness, Veszprém (Hungary)

  2. Entrance of the show cave and thelounge

  3. The show cave of Tapolca

  4. 16/2000. (VI. 8.) EüM • Personal dosimetry is required (inspite of the sources are terrestrial radioisotopes) in the case of the following workplaces: • 26.1. Spas, caves (therapy and show caves), underground mines, other underground workplaces

  5. Radon referencelevelforworkplaces: ICRP 65 (1993): 500-1500 Bq/m3 ICRP 103 (2007): max. 1500 Bq/m3 ICRP (2009): max. 1000 Bq/m3 WHO (2009): max. 1000 Bq/m3 Hungary: max. 1000 Bq/m3

  6. Radon measurementsbetween12/03/2003 – 02/10/2003.

  7. Average radon activityconcentration(kBq/m3)12/03/2003 – 02/10/2003. • Annual average >1000 Bq/m3 • Aeration is not allowed • Hazardous radiation workplace • Dosimetry required

  8. Annual radon activityconcentrationinthecave and thelounge

  9. Monthlyaverage radon activityconcentrationinthecave and thelounge(2006 – 2011)

  10. Outdoortemperaturedependency of radon concentration Cave Lounge

  11. Outdoor air pressuredependency of radon concentration Cave Lounge

  12. Annualeffectivedose of workers

  13. Thankyouforyourkindattention!

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