Measurement of radon potential from soil using a special method of sampling
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Soil radon gas and/or its exhalation rate are used as indicators for some applications, such as uranium exploration, indoor radon concentration, seismic activity, location of subsurface faults, etc., and also in the studies where the main interest is the field verification of radon transport models. This work proposes a versatile method for the soil radon sampling using a special manner of pumping. The soil gas is passed through a column of charcoal by using passive pumping. A plastic bottle filled with water is coupled to an activated charcoal column and the flow of water through an adjustable hole made at the bottom of bottle assures a controlled gas flow from the soil. The results obtained for the activity of activated charcoal are in the range of 20–40 kBq/m3, for a depth of approximately 0.8 m. The results obtained by this method were confirmed by simultaneous measurements using LUK 3C device for soil radon measurements. Possible applications for the estimation of radon soil potential are discussed.
Key wordsradon radon soil potential activated charcoal gas extraction
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- Cosma, C., D. Ristoiu, A. Poffijn, and G. Meesen (1996b), Radon in various environmental samples in the Herculane Spa, Cerna Valley, Romania, Environ. Int. 22, 383–388, DOI: 10.1016/S0160-4120(96)00136-5.Google Scholar
- Nazaroff, W.W., B.A. Moed, and R.G. Sextro (1988), Soil as a source of indoor radon: Generation, migration and entry. In: W.W. Nazaroff and A.V. Nero (eds.), Radon and its Decay Products in Indoor Air, John Wiley and Sons Inc., New York, 55–112.Google Scholar
- Neznal, M., and M. Neznal (2005), Permeability as an important parameter for radon risk classification of foundation soils, Ann. Geophys. 48, 1, 175–180.Google Scholar
- Neznal, M., M. Neznal, M. Matolín, I. Barnet, and J. Miksova (2004), The new method for assessing the radon risk of building sites, Czech. Geol. Survey, Special Papers 47.Google Scholar
- NRPB (1993), National Radiation Maps of Western Europe, National Radiological Protection Board, Chilton, Didcot, Oxon.Google Scholar
- Plch, J. (1997), Manual for Operating LUK 3C Device, Jiri Plch, M. Eng. SMM, Prague.Google Scholar
- Sainz, C., A. Dinu, T. Dicu, K. Szacsvai, C. Cosma, and L.S. Quindós (2009), Comparative risk assessment of residential radon exposures in two radon-prone areas, Ştei (Romania) and Torrelodones (Spain), Sci. Total Environ. 407, 15, 4452–4460, DOI: 10.1016/j.scitotenv.2009.04.033.CrossRefGoogle Scholar
- Tanner, A.B. (1980), Radon migration in the ground, a supplementary review. In: T.F. Gesell and W.M. Lowder (eds.), Natural Radiation Environment III, National Techn. Inform. Service, CONF-780422, Springfield, VA, 5–56.Google Scholar