Why Is Radon 220 Dangerous

The 220Rn isotope is a natural decay product of the most stable thorium isotope (232Th), and is commonly referred to as thoron. It has a half-life of 55.6 seconds and also emits alpha radiation.

Is radon 220 stable?

The 220Rn isotope is a natural decay product of the most stable thorium isotope (232Th), and is commonly referred to as thoron. It has a half-life of 55.6 seconds and also emits alpha radiation.

Where does radon 220 come from?

Radon comes from the natural (radioactive) breakdown of uranium and thorium in soil, rock, and groundwater and is found all over the U.S. The largest fraction of the public’s exposure to natural radiation comes from radon, mostly from soil under homes.