Radon exposure is primarily associated with which health risk?

• A. Lung cancer
• B. Skin cancer
• C. Heart disease
• D. Diabetes

Answer: (A)

Radon exposure increases the risk of lung cancer. Radon is a radioactive gas created by uranium decay that can accumulate in enclosed spaces, especially basements. When inhaled, the radioactive decay products emit alpha particles in the lungs, causing DNA damage that can lead to cancer over time. The risk rises with higher concentrations and longer exposure, and smokers have an even greater risk due to the synergistic effect with tobacco. Therefore, among the options, lung cancer is the primary health concern linked to radon, while skin cancer, heart disease, and diabetes are not the main risks associated with radon exposure. Homes can be tested for radon and mitigated by improving ventilation and sealing entries to reduce risk.