Аннотации:
The problem of ensuring the radon safety of construction is currently far from being
solved, which is explained by the lack of a unified opinion on the dominant mechanism of
radon transport from the soil into indoor area. The modelling of the contributions of diffusion
and convective radon fluxes into the buildings performed in the paper shows that convection
starts playing a role at sufficiently high floor structure permeabilities (about 10-12 m2). Modern
construction technologies make it possible to provide lower permeabilities of the underground
walling, excluding convective radon entry into the buildings. Based on the diffusion model of
radon entry, the paper proposes a method for ensuring radon safety of buildings at the design
stage.
