10 Things to Know About: Season 3, Episode 1 - ProjectFreeTV

3 - 1: Earth's Crust

In the first episode of the new series, we're investigate radon, the silent radioactive killer that's naturally contained in the rocks and soils across Ireland. Incredibly, exposure to radon gas in our homes is second only to smoking as the leading cause of lung cancer in Ireland and yet its surprisingly easy to tackle.