空气动力学直径

利用APD对大气气溶胶空气动力学直径测量分析

Measurement Analysis of Atmospheric Aerosol Aerodynamics Size with APD Detector

颗粒物，特别是空气动力学直径≤10μm的可吸入颗粒物（PM10）是国内外许多大城市的首要污染物。

Particulate matter ( PM ), especially the aerodynamic diameter ≤ 10 μ m ( PM10 ) is the primary pollutant in many major cities at home and abroad .

采用空气动力学直径粒谱分析仪分析了气溶胶粒子的尺寸分布；

Size distribution of the secondary organic aerosol particles was detected with an aerodynamic particle sizer spectrometer .

所谓大气细颗粒物（PM（2.5））是指空气动力学当量直径≤2.5μm的悬浮颗粒物。

The meaning of airborne fine particles ( PM_ ( 2.5 )) is particles with aerodynamic diameter less than 2.5 μ m.

对湖南省部分城市不同建筑类型室内的空气动力学当量直径小于等于10μm的可吸入悬浮颗粒物（PM10）室内外浓度进行了测试。

Indoor and outdoor concentrations of particulate less than 10 μ m ( PM10 ) were investigated in some cities in Hunan .

在根据空气动力学的基础上，参照国内外现有的气溶胶采样器研制出操作简便经济的PM2.5（空气动力学直径小于2.5μm的颗粒）采样器；

According international aerosol samplers , the PM2 . 5 ( aerodynamicdiameter ≤ 2 . 5 μ m ) sampler was prepared on base of aerodynamics .