In situ and laboratory measurements for radon transport process study

Characteristics of radon transport in porous
media were studied through both in situ and lab-scale measurements.
In situ measurements of radon activity concentration,
together with soil thoron and carbon dioxide efflux,
were carried out on Mt. Etna volcano. More detailed information
on radon transport mechanisms has been obtained
from laboratory measurements. In particular, we report the
first results of a systematic study carried out at the University
of Catania (Italy) by means of a facility consisting of a large
cylindrical stainless steel vessel, homogeneously filled with
different materials. Radon concentration vertical profiles
were extracted in low-moisture samples for different
advective fluxes, temperatures and porosities.