Radon-222 monitoring of soil diffusivity

Experimental Design for Soil Gas Radon Monitoring

Radon, the radioactive daughter product of the decay of has been the subject of scientific inquiry since its discovery in 1900 by DORN. 1 Because it is ubiquitous radium, initial in the environment, it has been studied as a means to better understand such diverse processes as earthquake precursors2 ' 3 atmospheric circulation patterns 4 , eruptive and non-eruptive volcanic processes5 , and grou...

The NIST Primary Radon-222 Measurement System

Within the United States, the national standard for radon measurements is embodied in a primary radon measurement system that has been maintained for over 50 years to accurately measure radon (222Rn) against international and national radium (226Ra) standards. In turn, all of the radon measurements made at the National Institute of Standards and Technology (NIST) and the radon transfer calibrat...

Assessment of radon-222 concentrations in buildings, building materials, water and soil in Jordan.

Monitoring of radon gas ((222)Rn) in Jordan was started in the early 1990s. Since then our radon group at Yarmouk University and others have carried out tens of studies that include measurements of indoor radon, radon in water, radon in soil and radon emanating from building materials. All major cities of Jordan had been surveyed, from the northern city of Irbid down to the southern port city o...

Radon-222 as Natural Tracer for Monitoring the Remediation of NAPL Contamination in the Subsurface

Distribution of airborne radon-222 concentrations in U.S. homes.

Apparently large exposures of the general public to the radioactive decay products of radon-222 present in indoor air have led to systematical appraisal of monitoring data from U.S. single-family homes; several ways of aggregating data were used that take into account differences in sample selection and season of measurements. The resulting distribution of annual-average radon-222 concentration...