The concentration of radon in buildings in Central-Southern Italy: experimental campaigns & correlation modelling

O. Barra, A. Barra, S. Cimbalo, A. Cuiuli, L. Franceschi, P. Ionta, D.E. Sytnikov
2001 Environmental Health Risk   unpublished
The paper aims to make available a wide set of experimental results deriving from a 30-months measurement campaigns (1999)(2000)(2001) on going in Central and Southern Italy, capable of detecting the indoor radon concentration levels in some 1000 buildings. The research is supported by LIFE, Calabria Regional Authority, Italian Ministry of University and Scientific Research and several Builders Association. The methodology is based on the use of high quality portable ionisation chambers, having
more » ... an error less than 5% and a certified calibration better than 1%. The radon emitted a-particles are detected every 10 minutesfor at least 5 days for each site -jointly with the ambient temperature, relative humidity and pressure, with a continuous check of the Data QA and System QA. An on-purpose developed on-line software is capable to evaluate relocation markers, noise reduction, time distribution, smoothing and synchronisation, as well as radium progeny, exhalation rate and equilibrium factors. The paper, because of such a huge number of experimental data, shows reliable correlation formulas between radon concentration levels and types of soil, ambient parameters and building features. The results show that some 15-20% of buildings exhibit radon concentration values in the range which is dangerous to health (> 400 ~~/ m ~) and up to 50% of building in the range in which health is at risk (150-400 ~~/ m ' ) .
doi:10.2495/ehr010191 fatcat:4ubmlqj44bcz3gg74a3fricaza