Is radon recognized as the largest source of radiation exposure and risk to the general public?

Radon is indeed recognized as the largest source of radiation exposure and risk to the general public, particularly in many parts of the world. This radioactive gas is produced naturally from the decay of uranium in soil, rock, and water, and it can accumulate in buildings, especially in lower areas such as basements. When inhaled, radon decay products can emit alpha particles that damage lung tissue, significantly increasing the risk of lung cancer over time.

The prevalence of radon in homes and buildings, combined with its radioactive properties, makes it a major public health issue. The U.S. Environmental Protection Agency (EPA) considers radon a serious health risk and provides guidelines for testing and mitigating radon in homes. Thus, acknowledging radon as the largest source of radiation exposure in the general population is supported by scientific research and public health guidelines.