The results of integration measurements of indoor radon activity concentration in houses in Ružomberok town (Northern Slovakia)

Abstract

Integration measurements of indoor radon in houses were performed within the framework of the project “Harmonization of determining the radiation dose of the population originating from radon in V4 countries”. In Slovakia, the survey was performed in three localities: Záhorská Bystrica, Mochovce and Ružomberok. Monitoring started in March 2012 and lasted for one year. In Ružomberok ten houses were selected for monitoring purposes. The houses built before 1990 were predominantly chosen for the investigation. In selected houses in Ružomberok, radon activity concentration rarely exceeded 400 Bq/m3 in a three month period, in this case the inhabitants were advised how to lower radon exposure. No house was found with an annual radon activity concentration of more than 400 Bq/m3.

Prediction of long-term indoor radon concentration based on short-term measurements

“…The de tec tors are usually de ployed for the follow ing pe ri ods of time: (a) quar terly, where the de tec tors are ex posed in four suc ces sive pe ri ods of three months (one full season) [4][5][6], (b) semi-an nu ally, two suc ces sive pe ri ods for a du ration of six months, in clud ing two full sea sons [7], or, and (d) annually, for a pe riod of one year [8,9]. Re gard less of the time of ex po sure, the re sults are ex pressed as an an nual C Rn .…”