Protection of Indoor Air from Radioactive Gas Radon

A modern human receives most of the radioactive annual dose in buildings from radon and its progeny, which can cause lung cancer. In such conditions, design radon-safe is an urgent task context preserving population collective health. The paper shows inefficiency using flux density soil surface as a criterion for potential hazard construction site due to significant temporal spatial variability. experimental device, makes it possible simulate real conditions transport laboratory described, results determining dominant mechanism by means experiment are presented. method required resistance floor structure proposed on basis diffusion model stationary transport.