About the future of radium historical wastes 3.part

The objective of this third part ( the first part tackles with the radium industry and the famous radium pins that were so useful in the brachytherapy to cure cancers, the second one was devoted to the problem of uranium ores and the workers of these mines) is to attract attention about the dangers of the radon that are not only destined to the workers of uranium ores. The radon penetrates in our houses in a slyly way by the ground and from construction materials. (N.C.)