Journal of the Korea Convergence Society (한국융합학회논문지)

Korea Convergence Society (한국융합학회)
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Measurement of Radioactive Surface Contamination of the Restroom in the Hospital

병원 내 화장실의 방사성 표면오염도 측정

  • Han, Sang-Hyun (Department of Radiological Science, Daewon University Colloege)
  • Received : 2020.06.09
  • Accepted : 2020.08.20
  • Published : 2020.08.28
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Abstract

This study measured radioactive surface contamination in general public restrooms in hospitals and in dedicated toilets for nuclear medicine. The measurement method was measured using Berthold (LB 124, Germany) at the entrance to the restroom, inside the restroom, around the restroom, in the urinal, and around the urinal. As a result of the use of the restroom, there was no dedicated place waiting for patients who received radioisotopes in one of the three hospitals. As a result of measuring the restroom for exclusive use of radioisotopes, all measurement sites in the radioiodine therapy room were the highest, and the results of measuring the public restrooms showed background level contamination at all hospitals except hospital B. However, it was measured as 8.073 Bq/㎠ and 6.426 Bq/㎠ in the urinals in the public restroom on the first floor of the B hospital. Therefore, it is recommended to explain the dangers of radiation exposure to patients and provide a place for patients to wait. In addition, a plan should be sought to prevent patients from receiving radioisotopes from using unnecessary movements and general public restrooms.

본 연구는 병원 내 일반 공용화장실과 핵의학 전용화장실내의 방사성 표면오염도를 측정하였다. 측정방법은 Berthold(LB 124, Germany)을 이용하여 화장실 입구, 대변기 안, 대변기 주위바닥, 소변기 안, 소변기 주위바닥에서 측정하였다. 화장실 사용실태 결과 3곳의 병원 중 1곳의 병원에서 방사성동위원소를 투여 받은 환자가 대기하는 전용장소가 없었다. 방사성동위원소 전용 화장실을 측정한 결과 방사성옥소 치료병실에서 모든 측정 장소가 가장 높게 측정되었고, 공용화장실을 측정한 결과는 B병원을 제외한 모든 병원의 측정 장소에서 백그라운드 수준의 오염도를 나타냈다. 하지만 B병원의 1층 공용화장실 소변기 안, 소변기 주위바닥에서 8.073 Bq/㎠, 6.426 Bq/㎠으로 측정되었다. 따라서 환자들에게 방사선피폭의 위험성을 설명하고, 환자가 대기할 수 있는 장소를 마련할 것을 권고 한다. 그리고 방사성동위원소를 투여 받은 환자는 불필요한 이동과 일반 공용화장실을 사용하지 못하도록 하는 방안이 모색되어야 할 것이다.

Keywords

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