论文部分内容阅读
根据首都医科大学环境卫生实验室2008年完成的二手烟雾检测实验,在35平方米的室内密闭环境中,一名吸烟者点燃卷烟后,即可导致室内的PM2.5浓度从30微克/立方米发生根本性改变,上升至400微克/立方米;当第二名吸烟者点燃卷烟时,室内的PM2.5浓度将从第一支烟点燃后的400微克/立方米快速上升到800~1200微克/立方米。下面请大家认识PM2.5的危害:PM2.5是指大气中直径小于或等于2.5微米的颗粒物,我们日常常见的雾霾天气大多数情况下就是由PM2.5
According to the second-hand smoke test conducted by the Environmental Health Laboratory of Capital Medical University in 2008, when a smoker lights a cigarette in a 35-square-meter indoor enclosed environment, the indoor PM2.5 concentration can be reduced from 30 μg / m3 When the second smoker lighted the cigarette, the indoor PM2.5 concentration rapidly rose from 400 μg / m3 after the first cigarette was ignited to 800-1200 μg /cubic meter. Now you know the harm of PM2.5: PM2.5 refers to the atmospheric particles less than or equal to 2.5 microns in diameter, our daily common hazy weather is in most cases by PM2.5