Health Risk Assessment of Natural Background Radiation in Residents of Khorramabad, Iran
Publish place: Iranian Journal of Medical Physics، Vol: 14، Issue: 1
Publish Year: 1396
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_IJMP-14-1_004
تاریخ نمایه سازی: 18 تیر 1398
Abstract:
Introduction Radioactive materials naturally exist in the world. Indeed, approximately 82% of human-absorbed radiation doses, which are out of human control, arise from natural sources of radiation including cosmic, terrestrial, and exposure through inhalation or ingestion. Thus, the aim of the present study was to estimate health risk, as well as the effective and organ doses from naturally occurring background radiation in residents living in the vicinity of Khorramabad, Iran. Materials and Methods This cross-sectional study was carried out in Khorramabad, Iran. The measurements were performed using Geiger-Muller detector (RDS-110) during daylight from April to June, 2015. The natural gamma radiation measurements were made both indoor and outdoor across five regions of Khorramabad (north, south, west, east, and center). Results The estimated mean absorbed dose rate in outdoor and indoor zones were 0.09±0.024 and 0.117±0.032 mSvy-1, respectively. Additionally, the mean annual effective dose was calculated as 0.69±0.19 mSvy-1, while the estimated health risk probability was 0.0345%. Conclusion The average annual effective dose arising from gamma background radiation was higher than global values. Therefore, more studies are required to examine the relationship between radiation-induced effects and the natural background radiation level in Khorramabad.
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Authors
Mojtaba Ghorbanipour
Department of Environmental Engineering, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran
Azamalsadat Hosseini Alhashemi
Department of Environmental Sciences, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran
Somayeh Gharloghi
Department of Medical Physics, Lorestan University of Medical Sciences, Khorramabad, Iran
Mahin Adeli
Department of Public Health, Lorestan University of Medical Sciences, Khorramabad, Iran