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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.