Passive Sampling and Monitoring of Radon and Other Gases (invited paper)

Passive sampling of radon gas may exploit different phenomena such as the adsorption, solubility, diffusion, and permeability of radon gas in different materials. Sampling methods are described for radon gas which, in principle, apply to all gases. For example, the combination of the polyethylene-based permeation membrane with activated charcoal has been successfully applied for the sampling and monitoring of radon gas and volatile organics often encountered in indoor atmospheres. (author)