Abbasi Akbar
Nuclear Science and Technology Research Institute (NSTRI), Tehran, Iran; University of Kyrenia, TRNC, via Mersin 10, Kyrenia; Near East University, Nicosia, North Cyprus, Mersin 10, Turkey.
J Cancer Res Ther. 2017 Apr-Jun;13(2):208-212. doi: 10.4103/0973-1482.204851.
Due to increasing occurrences of lung cancer, radon exhalation rates, radon concentrations, and lung cancer risks in several types of commonly used granite stone, samples used for flooring in buildings, have been investigated.
We measured the radon exhalation rates due to granite stones by means of an AlphaGUARD Model PQ2000 in a cube container with changeable floor by various granite stones. The lung cancer risk and percentage of lung cancer deaths (LCRn) due to those conditions were calculated using Darby's model.
The radon exhalation rates ranged from 1.59 ± 0.41 to 9.43 ± 0.74 Bq/m 2/h. The radon concentrations in the standard room with poor and normal ventilation were calculated 20.10-71.09 Bq/m 3 and 16.12-47.01 Bq/m 3, respectively.
The estimated numbers of lung cancer deaths attributable to indoor radon due to granite stones in 2013 were 145 (3.33%) and 103 (2.37%) for poor and normal ventilation systems, respectively. According to our estimations, the values of 3.33% and 2.37% of lung cancer deaths in 2013 are attributed to radon exhalation of granite stones with poor and normal ventilation systems, respectively.
由于肺癌发病率不断上升，对几种常用花岗岩石材（用于建筑物地板的样本）的氡析出率、氡浓度和肺癌风险进行了调查。
我们在一个底部可更换为各种花岗岩石材的立方体容器中，使用AlphaGUARD PQ2000型仪器测量花岗岩石材的氡析出率。使用达比模型计算因这些情况导致的肺癌风险和肺癌死亡百分比（LCRn）。
氡析出率范围为1.59±0.41至9.43±0.74贝克勒尔/平方米/小时。通风不良和正常的标准房间内的氡浓度分别计算为20.10 - 71.09贝克勒尔/立方米和16.12 - 47.01贝克勒尔/立方米。
2013年，通风不良和正常的系统中，因花岗岩石材室内氡导致的肺癌死亡估计人数分别为145人（3.33%）和103人（2.37%）。根据我们的估计，2013年分别有3.33%和2.37%的肺癌死亡归因于通风不良和正常的花岗岩石材的氡析出。
