Assessment of the dose rates to the basal layer of the skin from radon daughters in dwellings

摘要

Typical values of the parameters such as ventilation rate, attachment to aerosols and deposition processes, which influence the radon daughter equilibrium indoors have been used to evaluate the dose rates to the basal layer of the epidermis. Both the attached and unattached fractions of the radon daughters are considered for the evaluation. The radon dose to the basal layer of exposed skin is calculated to be 3.22 mSvy(sup -1) for population-weighted world average of the indoor radon exposure of 40 Bqm(sup -3). Considerably lower dose equivalents are received by regions of the skin which are habitually covered in clothing. (author) 25 refs, 3 tabs