radon

Radon is a colorless, odorless, cancer-causing radioactive gas. It forms naturally from the decay (breaking down) of radioactive elements, such as uranium, which are found in different amounts in soil and rock throughout the world. Radon gas in the soil and rock can move into the air and into underground water and surface water. In many parts of the country, radon emanates from concrete so can be especially prevalent in condos. Radon can also move from the ground to upper floors of condos via [...]