摘要
在环境氡水平的房间内，研究各种处理空气的方法所引起室内α潜能浓度、平衡因子、非结合态氡子体份额和气溶胶粒子数目及其大小分布的变化．计算支气管基底细胞层、肺区上皮及总肺的单位氡浓度年当量剂量，并与封闭房间未经任何空气处置的情况比较，结果显示：用正离子加风扇对流时总肺剂量率减少最为明显；而空调通风，对支气管剂量率的减少最为有效；吸烟或施放油烟，肺剂量都明显增加，油烟的影响尤为严重．
Study Variations of total potential alpha energy concentration of Radon daugthers, equililrium factor, fraction of unattached Radon dangthers, particle number and size distribntion of aersols, as a result of uarieus indoor air treatment methods;emiting postive ion, negative ion, smoke of cigaret and smoke of oil in a room of normal Radon level and off or on air conditioner in a Labrotory. The mean annual equialent dose due to inhalation indoor air was colculation according to the ICRP (81) pullication 32 and using data callected in this study for bronchial basal cell layer, pulmonary regin and tetal lang. Comparsion were made of the lung dose of various indoor air treatment.methods with not air treatment. The results show that positive or negative ion can reduce lung dose. In addition, the most effective method which rednce total lung dose is positive ion assitst fan convertion, Bronchal dose was reducl obviously while used air condition ventilation. Smoke of cigaret or oil increased lung dose, no matter RLD or MLD model, Smoke of oil in most,
出处
《中山大学学报论丛》
1994年第4期68-73,共6页
Supplement to the Journal of Sun Yatsen University
基金
香港城市理工学院资助
关键词
氡子体α潜能浓度
平衡因子
非结合态氡子体份额
肺剂量模式
potential alpha energy concentration of the Radon daugthers
equilibrium factor
fraction of unattached Radon daugthers
dosimetric lung model
