Which statement is not true of radon?

Which statement is not true of radon?

• A. It is a radioactive gas
• B. It may cause lung cancer
• C. It may cause liver cancer
• D. It is found in many homes

Answer: (C)

Radon is a radioactive gas that seeps from uranium in soil and rock and can build up inside homes. The health risk from radon comes from inhaling it, which irradiates lung tissue and increases the risk of lung cancer, especially for smokers. It is found in many homes, making exposure a real concern for indoor air quality. There isn’t a recognized link between radon exposure and liver cancer, so the statement about liver cancer isn’t true. The other statements are accurate: radon is a radioactive gas, it may cause lung cancer, and it is found in many homes. Testing and mitigation, like sealing entry points and increasing ventilation, can reduce indoor radon levels.

Radon is a radioactive gas that seeps from uranium in soil and rock and can build up inside homes. The health risk from radon comes from inhaling it, which irradiates lung tissue and increases the risk of lung cancer, especially for smokers. It is found in many homes, making exposure a real concern for indoor air quality. There isn’t a recognized link between radon exposure and liver cancer, so the statement about liver cancer isn’t true. The other statements are accurate: radon is a radioactive gas, it may cause lung cancer, and it is found in many homes. Testing and mitigation, like sealing entry points and increasing ventilation, can reduce indoor radon levels.