Radon gas is produced when radioactive materials like uranium, radium, or thorium decay in the earth's crust. It poses a threat to your health since it can seep into your home through crevices in the walls and floor. Some people claim they don't know about the dangers of radon, while others say the gas is impossible to eradicate and won't have an effect everywhere in the country. Radon is a naturally occurring radioactive gas that can seep into a home through cracks in the foundation. Long-term exposure to high radon levels can cause lung cancer, so having the levels evaluated is a smart idea whether purchasing or selling a house. Here's some information you need to know.