Pirsaheb Meghdad, Najafi Farid, Khosravi Touba, Hemati Lida
Environmental Health Engineering Department, Kermanshah University of Medical Sciences, Kermanshah, IR Iran.
Epidemiology Research Center, Kermanshah University of Medical Sciences, Kermanshah, IR Iran.
Iran Red Crescent Med J. 2013 Nov;15(11):e10204. doi: 10.5812/ircmj.10204. Epub 2013 Nov 5.
The main sources of radiation exposure of all living organisms including humans are natural. In fact, radon and its decay products are the cause of 50% of the total dose that is derived from natural sources. Because of the significant health hazards of radon gas, its levels are widely monitored throughout the world. Accordingly, considerable researches have also been carried out in Iran.
The aim of this research is a systematic review of the most recent studies associated with evaluation of radon gas levels in Iran. The main emphasis of this study was on public exposure to radon gas.
The most important route of exposure to such radiation is indoor places. In this investigation measurement of radon in water resources, tap water, indoor places and exhalation of radon from building material, the major sources of indoor radon gas emission, were considered.
Significantly high levels of radon gas were found mostly in water and residenvial buildings.
It conclusion with regard to the study of building materials, granite stone and adobe coverings cannot be recommended for construction purposes.
包括人类在内的所有生物辐射暴露的主要来源都是天然的。事实上，氡及其衰变产物占天然来源总剂量的50%。由于氡气对健康有重大危害，其水平在全球范围内受到广泛监测。因此，伊朗也开展了大量研究。
本研究的目的是对伊朗氡气水平评估的最新研究进行系统综述。本研究的主要重点是公众接触氡气的情况。
接触此类辐射的最重要途径是室内场所。在这项调查中，考虑了水资源、自来水、室内场所以及建筑材料中氡的析出量的测量，这些是室内氡气排放的主要来源。
在水和住宅建筑中大多发现氡气水平显著偏高。
关于建筑材料的研究，不建议将花岗岩和土坯覆盖物用于建筑目的。
