不同大气污染状态下的颗粒物粒径分布特征分析

利用粒径谱仪对正常天气、雾霾天气、烟花燃放和混合污染等四种大气状态下颗粒物进行连续监测,结果表明,雾霾天气下颗粒物数浓度高,粒径大,高数浓度持续时间长;正常天气下颗粒物数浓度低,粒径小,高数浓度持续时间短;烟花集中燃放条件下,颗粒物的数浓度和粒径在短时间内达到峰值。

The Analysis of the Particle Size Distribution of Particles in the State of Different Atmospheric Pollution

Particle size spectrometer for continuous monitoring of particulate matter in the four state of the atmosphere （normal weather, fog and haze, fireworks and mixed pollution）, The results show that, Particle number concentration is high, particle size is big, concentration of the high number of long duration in Fog and haze; Conditions the particle number concentration is low, particle size is small, concentration of the high number of short duration in normal weather; The fireworks under concentrated discharge conditions, number concentration and particle size of the particulate matter in a short period of time to reach the peak.