RADON ?

The radon is a natural radioactive gas. It’s created by natural uranium disintegration come from any rocks and waters present all around the world.

It’s toxic by its radioactivity and it is the 2nd lungs cancer cause (3-14%) behind tobacco. Its half-life is short (a couple of days) but it around-the-clock created. As uranium is everywhere on the earth the radon gas is also on each world map region.

Nevertheless, a superior rate of this metal is contained in granites or sedimentary regions, by this way this ones have more important radon emanation. The european radon diffusion map (opposite) shows the most exposed regions in europe. Nevertheless, you might know the problem is not the natural radon diffusion but it’s concentration in buildings. Thus, a house located in a less exposed region could have a high concentration rate, and vice versa.

Please click here to have information about radon dangers.