“…A method based on the high ability of some polycarbonates, such as Makrofol Ò , to absorb radon was first proposed in 1999 (Pressyanov et al, 1999). The potential of such approach was further commented (Fleischer, 2002) and explored and expanded (Tommasino et al, 2009). The commercial CDs and DVDs are made of materials equivalent to Makrofol.…”