metal. Of course, the amount of lead is miniscule, measured in atoms, but if it decays in your lungs, radon leaves behind radioactive metal particles which get stuck in the tissue and stay there, bombarding your alveoli with radiation. This can cause the cells to mutate, and they may mutate into cancer cells. It takes about twenty years for this process to reach a point where lung cancer sets in, and the majority of people who contract lung cancer die from it.

The good news is that prevention is pretty simple. By ensuring that fresh air gets in and circulates, you can put an end to most of the problems caused by pollutants. This is why it is so important to ensure proper ventilation in your home.