Pooya S M Hosseini, Dashtipour M R, Enferadi A, Orouji T
Nuclear Safety and Radiological Protection Research Department, Nuclear Science and Technology Research Institute, Tehran, Iran.
Iran Nuclear Regulatory Authority, Tehran, Iran.
J Environ Radioact. 2015 Sep;147:97-9. doi: 10.1016/j.jenvrad.2015.05.020. Epub 2015 Jun 4.
A monitoring program in boundary areas of a country is an appropriate way to indicate the level of public exposure. In this research, gamma background radiation was measured using TL dosimeters at 12 boundary areas as well as in the capital city of Iran during the period 2010 to 2011. The measurements were carried out in semi-annual time intervals from January to June and July to December in each year. The maximum average dose equivalent value measured was approximately 70 μSv/month for Tehran city. Also, the average dose values obtained were less than 40 μSv/month for all the cities located at the sea level except that of high level natural radiation area of Ramsar, and more than 55 μSv/month for the higher elevation cities. The public exposure due to ambient gamma dose equivalent in Iran is within the levels reported by UNSCEAR.
在一个国家的边境地区开展监测项目是表明公众暴露水平的一种恰当方式。在本研究中，于2010年至2011年期间，使用热释光剂量计在伊朗的12个边境地区以及首都测量了伽马本底辐射。测量在每年的1月至6月以及7月至12月以半年为时间间隔进行。测量得到的德黑兰市最大平均剂量当量值约为70微希沃特/月。此外，除拉姆萨尔高天然辐射水平地区外，所有位于海平面的城市获得的平均剂量值均低于40微希沃特/月，而海拔较高城市的平均剂量值则超过55微希沃特/月。伊朗因环境伽马剂量当量导致的公众暴露处于联合国原子辐射效应科学委员会报告的水平范围内。
