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The Laboratory of Natural Radiation (LNR) : a place to test radon instruments under variable conditions of radon concentration and climatic variables

Quindós Poncela L. S., Sainz Fernández C., Gutiérrez-Villanueva J.-L., Fuente Merino I., Celaya González C., Quindós López L., Quindós López J., Fernández Lopez E., Fernández Villar A.

Nukleonika

2016

Vol. 61, No. 3

275--280

The publication of the new European Union Basic Safety Standards represents a remarkable milestone in the fi eld of radiological protection in terms of adding radon exposure to this framework. Therefore, the coming years will bring the need to measure radon not only in the workplaces but also in the living spaces as a direct outcome of the application of the new EU Directive. So, the importance of having reliable instruments is evident and interlaboratory exercises are becoming more and more popular. However, most of them are carried out under constant conditions of meteorological variables. We present in this paper a facility to broaden the interlaboratory comparisons further by adding the study of radon exposures under real conditions of changes in climatic parameters. In addition, the facility has the possibility to verify the response of radon monitors when the radon concentration changes several orders of magnitude in a short period of time. Our work shows some results of one of the interlaboratory exercises carried out in the premises, where the radon levels were rather homogeneous in the testing room.

The use of radon as tracer in environmental sciences

Quindos Poncela L., Sainz Fernandez C., Fuente Merino I., Gutierrez Villanueva J., Gonzalez Diez A.

Acta Geophysica

2013

Vol. 61, no. 4

848--858

Radon can be used as a naturally occurring tracer for environmental processes. By means of grab-sampling or continuous monitoring of radon concentration, it is possible to assess several types of dynamic phenomena in air and water. We present a review of the use of radon and its progeny at the University of Cantabria. Radon can be an atmospheric dynamics indicator related with air mass interchange near land-sea discontinuities as well as for the study of vertical variations of air parameters (average values of different types of stability: 131-580 Bq m-3). Concerning indoor gas, we present some results obtained at Altamira Cave (Spain): from 222 to 6549 Bq m–3 (Hall) and from 999 to 6697 Bq m–3 (Paintings Room). Finally, variations of radon concentration in soil (0.3 to 9.1 kBq m–3) and underground water (values up to 500 Bq 1–1) provide relevant information about different geophysical phenomena.