摘要
对济南市东郊工业区大气悬浮颗粒物的粒径分布和形状特征的分析表明:该地区粒子谱分布为Junge分布;粒子的质量中值直径为3～4μm;1μm以上的粒子质量粒谱分布呈对数正态分布;粒径在2μm以下的细粒子的质量浓度只占总量的20％～30％。对不同粒子形状的研究表明:冬季,由于能源燃烧排放的颗粒物占总量的70％。
Particle size distribution, and shape characteristics of atmospheric suspended particulate matter in the east suburban industrial region of Jinan the author was measured and analysed. Results show that in the region particle—count distribution presented Junge distribution, that mass mean diameter is 3—4μm, parlicle's(≥1μm)mass concentration distribution presented logarithmic normal distribution, and that the mass concentration of fine particles( D≤2μm)only is 20—30% of total.
Studing on shape of different particles shows: in winter mass concentration of particulate matter in 70% of total for burn exhaust of energy source.
出处
《山东科学》
CAS
1991年第2期56-61,共6页
Shandong Science
关键词
空气污染
悬浮颗粒物
粒径分布
particle size distribution
atmospheric suspended patriciate matter
atmosphere pollution
