Atmospheric radioactive noble gas radon (Rn-222) originates from soil gas exhaled in the
atmospheric surface layer. Radon exhalation rates from soil as well as corresponding …

The concentration activity of radon-222 has been monitored, with some interruptions, from
1997 to 2005 in the end section of a slightly rising, dead-end, 38-m long tunnel located in …

Rn-222 enters dwellings as a component of soil gas drawn from the soil by mass flow driven
by the pressure difference between the house and soil beneath. In a site on Northampton …

Measurements of the activities of the parent (226Ra) and progeny (210Pb) of 222Rn in 119
core samples of North American soils reveal that the mean fraction of the 222Rn produced in …

Experimental measurements of permeability as a function of scale as well as direct detection
of flow indicate macroscopic channels are present at a soil site. A model for heterogeneous …

Detailed 222 radon (222 Rn) flux maps are an essential pre-requisite for the use of radon in
atmospheric transport studies. Here we present a high-resolution 222 Rn flux map for …

A novel technique utilizing simultaneous radon monitoring by gamma and alpha detectors to
differentiate between the radon climatic driving forces and others has been improved and …

The concentrations of 226Ra and 222Rn (214Pb) were mea-sured as a function of depth
within a uranium mill tailings pile by in situ 7-ray spectrometry. Radon diffusion and …

In order to determine the extent and causes of radon variability in soil gas, repeated
measurements of 222Rn, 220Rn, and soil properties including moisture, temperature …

The concentration of radon-222 has been monitored since 1995 in the atmosphere of a 2 m
transverse dimension, 128 m long, dead-end horizontal tunnel located in the French Alps, at …