办公室空气颗粒物的粒度分布初探

Size Distribution of Airborne Particulates in Office

用气溶胶自动分析仪对办公室内空气中的颗粒物进行了测定。测定结果表明:颗粒物的数量浓度、总表面积、质量浓度与颗粒物粒径在双对数坐标图上均呈直线关系,颗粒物浓度峰值在粒径1～2μm处。另外,吸烟对办公室内颗粒物的粒度分布影响较大。

Determination of office air particulates by using aerodynamic particle sizer has been conducted. The result showed that the linear correlation lay between particulates numerial concentration, total surface area, mass concentration and particle diameters, and the peak value of airborne particulate concentration lay between 1 and 2 μ m. In additon, smoking seriously affected on size distribution of indoor airborne particulates.