Khan A J
Department of Applied Physics, College of Engineering and Technology, Aligarh Muslim University, India.
Radiat Environ Biophys. 1994;33(1):81-4. doi: 10.1007/BF01255276.
The internal dose rate due to indoor radon (Rn) emissions from building materials is estimated. It is observed that the contribution from building materials to the dose rate is very small. The average indoor radon concentration in 75 different rooms is found to be 55 +/- 12 Bq. m-3. Assuming an occupancy factor of 0.8, the annual average effective dose equivalent is 1.7 mSv. It seems that soil gas is mainly responsible for the internal exposure from indoor Rn.
估算了建筑材料中室内氡（Rn）排放产生的内照射剂量率。据观察，建筑材料对剂量率的贡献非常小。发现75个不同房间的室内平均氡浓度为55±12 Bq·m⁻³。假设居住因子为0.8，年平均有效剂量当量为1.7 mSv。看来土壤气体是室内氡内照射的主要原因。
