Shashikumar T S, Chandrashekara M S, Nagaiah N, Paramesh L
Department of Studies in Physics, University of Mysore, Manasagangotri, Mysore 570 006, India.
Radiat Prot Dosimetry. 2009 Jan;133(1):44-9. doi: 10.1093/rpd/ncp001. Epub 2009 Feb 3.
(222)Rn and (220)Rn, the immediate decay products of radium isotopes, are causative agents of lung cancer. (222)Rn and (220)Rn concentrations in houses with different floorings, roofs and walls and in different rooms of houses have been measured in Mysore city, Karnataka state, India, using solid-state nuclear track detectors. The radon and thoron concentrations in dwellings with granite floorings are found to be higher compared with other types. A correlation between the indoor radon concentration and dose in air from terrestrial gamma radiation is observed.
镭同位素的直接衰变产物（222）Rn和（220）Rn是肺癌的致病因素。印度卡纳塔克邦迈索尔市使用固态核径迹探测器，测量了不同地板、屋顶和墙壁的房屋以及房屋不同房间中的（222）Rn和（220）Rn浓度。结果发现，与其他类型相比，花岗岩地板房屋中的氡和钍射气浓度更高。还观察到室内氡浓度与来自陆地伽马辐射的空气中剂量之间存在相关性。
