Indoor radon is the second cause of lung cancer.Mitigation strategies are based on (i) building protection with radon barrier materials, (ii) increasing home ventilation or (iii) room pressurization.A scale model room created with a porous ignimbrite rich Fountain Pen in radon precursors was used as an analogue to test the indoor radon reduction ability of various radon barrier materials in a real room.
The properties of these materials were tested with Miscellaneous and without room pressurization by introducing outdoor air at different flow rates.The best materials reduced indoor radon up to 80% and, when the highest pressurization was applied, to 93%.