1. Experimental Research of Mitigation Systems for Controlling and Reducing Radon Exposure in Residential Buildings

Abstract

This article presents the results of implementing a series of methods to mitigate the increased level of radon in multiple existing homes. The subject of this study is represented by techniques and systems to be implemented in pilot houses. From the 1000 house 100 houses from Cluj, Iași, Sibiu, Timiș and Bucharest were selected for monitoring purposes. From these, only 10 were chosen for mitigation. The remediation techniques applied to these pilot houses were active / passive depressurization, local ventilation with heat recovery, centralized ventilation system with heat recovery and installation of a membrane resistant to radon dispersion. In this article one house from Timisoara, and another one from Cluj, were deeply described. The mitigation of the radon level was up to 90% compared to the level measured a year ago.

The applicability of decentralized ventilation equipment in radon mitigation from existing homes

“…In 2020 at the Building services and energy efficiency conference, was presented an article that combined the radon mitigation from existing dwelling with other indoor air quality parameters, to properly see how these parameters are correlated with radon mitigation. The results shown a good efficiency in radon reduction and indoor CO2 concentration also [14]. This achievement demonstrates that a proper designed ventilation system can increase the indoor air quality concomitant with radon mitigation.…”