Seasonal variation of radon and CO2 in the Važecká Cave, Slovakia

• Autorzy: Smetanová Iveta , Holý Karol , Luhová Ľubica , Csicsay Kristian , Haviarová Dagmar , Kunáková Lucia

Identyfikatory

DOI

10.2478/nuka-2020-0025

• Konferencja: III International Conference „Radon in the Environment” (3 ; 27-31 May 2019 ; Krakow, Poland)
• Języki publikacji: EN

Abstrakty

EN

The continuous monitoring of 222Rn activity concentration, CO2 concentration, and microclimatologic parameters (internal air temperature and relative humidity) in the Važecká Cave (Northern Slovakia) is being carried out at three monitoring stations, namely, Gallery, Lake Hall, and Entrance Hall. Radon activity concentration and CO2 concentration exhibited a clear annual variation. The daily average of radon concentration ranged 1300–27 700 Bq/m3 at the Lake Hall station and 3600–42 200 Bq/m3 at the Gallery station. Radon reached its maximum in the summer months, from June to September. The annual maximum of CO2 concentration is registered approximately one month later than radon maximum. The annual variation of radon and CO2 is controlled by the seasonal change of ventilation regime associated with the seasonal variation of the difference between the temperature measured inside the cave and the atmospheric temperature.

Słowa kluczowe

EN

carbon dioxide; cave; monitoring; radon; temperature; variation

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2020
• Tom: Vol. 65, No. 2
• Strony: 153--157
• Opis fizyczny: Bibliogr. 20 poz., rys.

Twórcy

autor

Smetanová Iveta

• Earth Science Institute, Slovak Academy of Sciences Dúbravská cesta 9, 840 05 Bratislava, Slovakia

autor

Holý Karol

• Faculty of Mathematics, Physics and Informatics Comenius University Mlynská dolina, 842 48 Bratislava, Slovakia

autor

Luhová Ľubica

• Earth Science Institute, Slovak Academy of Sciences Dúbravská cesta 9, 840 05 Bratislava, Slovakia

autor

Csicsay Kristian

• Earth Science Institute, Slovak Academy of Sciences Dúbravská cesta 9, 840 05 Bratislava, Slovakia

autor

Haviarová Dagmar

• State Nature Conservancy of the Slovak Republic Slovak Caves Administration Hodžova 11, 031 01 Liptovský Mikuláš, Slovakia

autor

Kunáková Lucia

• State Nature Conservancy of the Slovak Republic Slovak Caves Administration Hodžova 11, 031 01 Liptovský Mikuláš, Slovakia

Bibliografia

• 1. Lario, J., Sánchez-Moral, S., Cañaveras, J. C., Cuezva, S., & Soler, V. (2005). Radon continuous monitoring in Altamira Cave (northern Spain) to assess user’s annual effective dose. J. Environ. Radioact., 80, 161–174. DOI: 10.1016/j.jenvrad.2004.06.007.
• 2. Thinová, L., & Burian, I. (2008). Effective dose assessment for workers in caves in the Czech Republic: Experiments with passive radon detectors. Radiat. Prot. Dosim., 130(1), 48–51. DOI: 10.1093/rpd/ncn118.
• 3. Alvarez-Gallego, M., Garcia-Anton, E., FernandezCortez, A., Cuezva, S., & Sanchez-Moral, S.(2015). High radon levels in subterranean environments: monitoring and technical criteria to ensure human safety (case of Castañar cave, Spain). J. Environ. Radioact., 145, 19–29. DOI: 10.1016/j.jenvrad.2015.03.024.
• 4. Somlai, J., Hakl, J., Kavasi, N., Szeiler, G., Szabo, P.,& Kovacs, T. (2011). Annual average radon concentration in the show caves of Hungary. J. Radioanal. Nucl. Chem., 287, 427–433. DOI: 10.1007/s10967-010-0841-9.
• 5. Przylibski, T. A. (1999). Radon concentration changes in the air of two caves in Poland. J. Environ. Radioact., 45, 81–94.
• 6. Dueñas, C., Fernández, M. C., Cañete, S., Carretero,J., & Liger, E. (1999). 222Rn concentrations, natural flow rate and the radiation exposure levels in the Nerja Cave. Atmos. Environ., 33, 501–510.
• 7. Lu, X., Li, L.Y., & Zhang, X. (2009). An environmental risk assessment of radon in Lantian Karst Cave of Shaanxi, China. Water Air Soil Pollut., 198, 307–316. DOI: 10.1007/s11270-008-9847-0.
• 8. Bahtijari, M., Vaupotič, J., Gregorič, A., Stegnar, P., & Kobal, I. (2008). Exposure to radon in the Gadime Cave, Slovakia 157Cave, Kosovo. J. Environ. Radioact., 99, 343–348.DOI: 10.1016/j.jenvrad.2007.08.003.
• 9. Barbosa, S. M., Zafrir, H., Malik, U., & Piatibratova, O. (2010). Multi-year to daily radon variability from continuous monitoring at the Amram tunnel, southern Israel. Geophys. J. Int., 182, 829–842. DOI: 10.1111/j.1365-246X.2010.04660.x.
• 10. Gregorič, A., Zidanšek, A., & Vaupotič, J. (2011). Dependence of radon levels in Postojna Cave on outside air temperature. Nat. Hazards Earth Syst. Sci., 11, 1523–1528. DOI: 10.5194/nhess-11-1523-2011.
• 11. Gregorič, A., Zidanšek, A., & Vaupotič, J. (2013). Reasons for large fluctuation of radon and CO2 levels in a dead-end passage of a karst cave (Postojna Cave, Slovenia). Nat. Hazards Earth Syst. Sci., 13, 287–297. DOI: 10.5194/nhess-13-287-2013
• 12. Hakl, J., Csige, I., & Hunyadi, I. (1996). Radon transport in fractured porous media – experimental study in caves. Environ. Int., 22, S433–S437.
• 13. Fernandez-Cortes, A., Sanchez-Moral, S., Cuezva, S., Cañaveras, J. C., & Abella, R. (2009). Annual and transient signatures of gas exchange and transport in the Castañar de Ibor cave (Spain). Int. J. Speleol., 38(2), 153–162.
• 14. Kowalczk, A. J., & Froelich, P. N. (2010). Cave air ventilation and CO2 outgassing by radon-222 modelling: how fast do the caves breathe? Earth Planet. Sci. Lett., 2899, 209–219. DOI: 10.1016/j.epsl.2009.11.010.
• 15. Milanolo, S., & Gabrovšek, F. (2009). Analysis of carbon dioxide variations in the atmosphere of Srednja Bijambarska Cave, Bosnia and Herzegovina. Bound-Lay. Meteorol., 131, 479–493. DOI: 10.1007/s10546-009-9375-5.
• 16. Faimon, J., Štelcl, J., & Sas, D. (2006). Anthropogenic CO2-flux into cave atmosphere and its environmental impact: A case study in the Císařská Cave (Moravian Karst, Czech Republic). Sci. Total Environ., 369, 231–245.
• 17. Droppa, A. (1962a). Speleologický výskum Važeckého krasu (Speleological research of Važec karst area). Geografi cal Journal, 14(4), 264–293.
• 18. Droppa, A. (1962b). Važecká jaskyňa a krasové javy v okolí (Važecká Cave and karst phenomena in surrounding area). Bratislava, Slovakia: Šport. 19. Bella, P., Littva, J., Pruner, P., Bosák, P., Šlechta, S.,Hercman, H., & Čížiková, K. (2016). Geologická stavba, morfológia a vývoj Važeckej jaskyne (Geological setting, morphology and evolution of the Važecká Cave, Slovakia). Acta Carsologica Slovaca, 54(1), 5–31.
• 20. Zelinka, J. (2002). Termodynamická charakteristika Važeckej jaskyne (Termodynamic characterization of the Važecká Cave). In Výskum, využívanie a ochrana jaskýň, Zborník referátov z 3. Vedeckej konferencie, (Investiagation, protection and using of caves, conference proceedings), 14–16 November, 2001 (pp. 123–131). SSJ, Žilina, Slovakia: Liptovský Mikuláš Knižné centrum.

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).