Paper Title
Measurement of Radon Diffusion Coefficient and Radon Diffusion Length through Expanded Polystyrene (EPS)

Abstract
Advancement in technology provides the broad map for management of environment and society related tribulations. In current scenario, due to the influence of several sociological aspects and environmental factors; assiduous human spend significant amount of time in indoor. In view of this, the maintenance of IAQ (Indoor Air Quality) is one of the priority parameter for technical infrastructure to develop healthy environment at workplace as well as at residence. Radon ( Rn222 ) is odorless, colorless and radioactive gas. A certain concentration level of indoor radon (Rn222) gas always present in indoor environment of dwellings because of building materials; like mud brick, cement and aggregate. The exposure of this kind of indoor radioactive gases for long duration increases the risk of health issues. The maintenance of safe limits ( provides by WHO) of indoor radon levels can be done by reducing the transportation of radon from dwelling surface to indoor air or by enhancing the ventilation rate. This study proposed a mitigation method for to decrease indoor radon levels. The present research paper includes measurement for radon gas diffusion through expanded polystyrene (EPS) foam of various thicknesses. Expanded polystyrene (EPS) is an extremely lightweight and eco-friendly geopolymer. The experimental results providing that an optimal thickness of EPS sheet that covering the dwelling surface will act as a barrier for radon diffusion from dwelling surface to the indoor environment. Keywords - Advanced Technology; Indoor Environment; Radioactive Gas; Mitigation Strategy; Expanded Polystyrene(EPS); Radon Gas; Radon Diffusion Coefficient; Radon Diffusion Length.