What happens when radon enters the environment?
Radon has a radioactive half-life of about 4 days; this means that half of a given amount of radon will decay to other products every 4 days. Some of the radon produced in the soil will move to the surface and enter the air. It can attach to dust and other particles in the air. It occurs at very low levels in outdoor air. Most of the radon will remain in the soil. It can move from the soil to the groundwater.
