室内氡、钍及其子体在泰国攀牙府高辐射地区住宅内的内照射。
INTERNAL EXPOSURE FROM INDOOR RADON, THORON AND THEIR PROGENY IN RESIDENCE AROUND HIGH BACKGROUND RADIATION AREA, PHANG NGA PROVINCE, THAILAND.
机构信息
Department of Applied Radiation and Isotopes, Faculty of Sciences, Kasetsart University, Bangkok 10900, Thailand.
Department of International Cooperation and Collaborative Research, Institute of Radiation Emergency Medicine, Hirosaki University, Aomori, 036-8564, Japan.
出版信息
Radiat Prot Dosimetry. 2022 Jul 1;198(8):467-471. doi: 10.1093/rpd/ncac070.
A passive integrating discriminative radon-thoron monitor (Raduet) and a radon-thoron progeny monitor with a solid-state nuclear tracking detector were used for estimating indoor radon, thoron and their progeny concentrations in residential areas around the old mines of southern Thailand. Exposure to high background radiation levels from natural 238U and 232Th in the tin mine areas or active fault areas may increase the risk of lung cancer in the respiratory system when considering the health effects of the surrounding inhabitants. In this study, radon thoron and their progeny concentrations from inhalation in the study site have been assessed in dose at volunteer houses to confirm radiation effects. The annual effective doses due to inhalation of radon-thoron, radon progeny and thoron progeny using the ICRP latest dose conversion factors were estimated to be 3.0-4.6, 2.5-3.7 and 0.4-1.0 mSv, respectively, and as 5.9-9.0 mSv in total.
使用被动积分甄别氡-钍监测仪（Raduet）和带有固态核径迹探测器的氡-钍子体监测仪，估算了泰国南部旧矿区周围居民区的室内氡、钍及其子体浓度。在考虑周围居民的健康影响时，锡矿地区或活动断层地区天然 238U 和 232Th 产生的高本底辐射水平可能会增加呼吸系统患肺癌的风险。在这项研究中，评估了研究点志愿者家中吸入的氡-钍及其子体浓度，以确认辐射影响。使用 ICRP 最新剂量转换系数估算的氡-钍、氡子体和钍子体吸入的年有效剂量分别为 3.0-4.6、2.5-3.7 和 0.4-1.0 mSv，总计为 5.9-9.0 mSv。
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