中文摘要：

采用电称冲击低压系统（ELPI）将无烟室和吸烟室内的空气颗粒物（0.03～10.00μm）分成12级,对其粒子数和质量浓度进行测定。结果表明,吸烟室PM0.03～10.00的日平均粒子数和质量浓度分别是无烟室的1.50、1.13倍。烟草烟雾对室内颗粒物粒子数的影响集中在0.03～1.00μm粒径段;对室内颗粒物质量浓度的影响表现为双模态结构,峰值分别在0.20～0.70、5.00～8.20μm粒径段。烟草烟雾颗粒物的粒子数和质量浓度随烟雾消散时间的增加而减少,粒径越小,减小的越明显;烟草烟雾颗粒物在室内消散缓慢,会在长时间内造成影响,应引起足够关注。

英文摘要：

Understanding the effects of tobacco smoke on indoor environment is essential for improving the indoor environment and protecting human health. An electrical low pressure impactor（ELPI）was employed to determine concentrations of number and mass of 12 size classes （mean particle diameter ranged from 0.03 to 10.00 μm） of airborne particulate matters in smoking and non-smoking rooms. The concentrations of number and mass of airborne particles in smoking room were 1.76 times and 1.29 times,respectively,of those found in the non-smoking room. The mass concentration of particulates emitted from tobacco smoke in indoor air exhibited the bimodal distribution patterns showing peaks for the 0.20-0.70 μm and 5.00-8.20 μm size fractions. Particulates emitted from tobacco smoke affected primarily on the number concentrations of those with size of 0.03-1.00 μm. The particle size affected both the diffusion rates and number ＆ mass concentrations of the particulate matters; smaller particulates diffused more quickly. The tobacco smoke particles dissipated slowly indoor. The health effect of their long staying time in the indoor environment is a matter of concern.