Determination of radon gas levels in the air in the faculty building (Bitlis)

Living things are exposed to internal and external natural radiation throughout their lives. Natural radiation consists mostly of cosmic rays and terrestrial radiation sources containing many radioisotopes. While uranium, thorium and potassium are the main radionuclides that constitute terrestrial natural radiation sources; radon is a radioactive gas that occurs naturally by the decay of uranium found in soil, rocks and water. People are mostly exposed to natural radiation due to building construction materials and indoor radon concentration. In this study, measurement of radon gas activity concentration levels in the air in Bitlis Eren University Faculty of Science and Letters building was made using an active radon measurement detector (AlphaGUARD). As a result of these measurements; The average radon activity concentration was determined as 41.13 Bq/m3. When the measurement results are compared with the limit values; It has been determined that there is no risk to health. Annual effective dose equivalent, AEDE, (average 0.889 mSv/y) and excess lifetime cancer risk, ELCR, (average 3.545) parameters were calculated using radon activity concentration values.