Radiological Risk Estimates Due to Background Exposures in Selected Hospitals in South – East Nigeria

Nwokeoji, I; Avwiri, G. O.

doi:10.9734/acri/2017/34244

Cited by 1 publication

(1 citation statement)

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“…The minimum mean annual equivalent dose obtained in outdoor areas was 0.10 mSv/y and the maximum mean annual dose equivalent was 0.12 mSv/y; the corresponding results were 0.42 mSv/y and 0.58 mSv/y for indoor areas, respectively. In this study, the average annual equivalent doses (mSv/y) were lower than the threshold limit of 1 mSv/y in radiology centers that were similar to the results reported in other studies (14,19,20). It should be mentioned that there were some limitations in this study, including the weak cooperation of radiography centers during the study (only 5 out of 25 centers participated voluntarily in the present study) and the lack of knowledge of fundamental principles of Xray machine layout and assembly in the department building.…”

Section: Discussionsupporting

confidence: 91%

Background Ionization Radiation in Radiography Centers in Ahvaz, Iran

Dehaghi

Abadi

2020

Jundishapur J Health Sci

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Background: Exposure to ionizing radiation has harmful health effects. Research shows that people spend more their time indoors than outdoors. Therefore, the indoor background ionizing radiation can pose a noticeable health risk. Objectives: Since it is well established that ionizing radiation can lead to serious health problems, the present study aimed to evaluate the level of ionizing radiation in the background environment in radiological centers in Ahvaz, Iran. Methods: The evaluation of indoor and outdoor background ionizing radiation levels was carried out by using the calibrated digital Geiger-Muller counter (S.E. International Inc., USA) in five radiography centers. The background radiation was measured both indoor and outdoor of the selected radiology centers in four locations. The measured locations included behind the door of the X-ray room, outdoor, waiting room for the people, and the reception section in each center. The measurements were done with a device held one meter above the floor. Results: The indoor radiation levels were 0.13 ± 0.004, 0.11 ± 0.004, 0.13 ± 0.004, 0.16 ± 0.007, and 0.16 ± 0.006 µSv/h for centers a, b, c, d, and e, respectively, and the outdoor radiation levels were 0.12 ± 0.02, 0.11 ± 0.01, 0.10 ± 0.00, 0.12 ± 0.01, and 0.13 ± 0.00 µSv/h, respectively. Conclusions: The mean equivalent dose in this study was lower than the standard level (1 mSv/y); therefore, the radiology centers were safe.

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Section: Discussionsupporting

confidence: 91%