Abstract
Radon-222, an inert radioactive gas produced from the decay of radium-226 in the uranium-238 series, is a major contributor to natural radiation exposure. While radon itself is largely exhaled after inhalation, its short-lived decay products—such as isotopes of polonium, lead, and bismuth—can attach to airborne particles and deposit in the lungs, emitting alpha radiation that poses serious health risks. This study aimed to assess indoor radon levels at Yıldız Technical University’s Davutpaşa Campus by conducting short-term measurements in selected high-risk areas, including basements, laboratories, classrooms, and offices across eight different faculties. Measurements were performed in October 2022 and August 2024 using the AlphaGUARD instrument.
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