摘要
在山东大学区设11个点位,在不同季节采集大气颗粒物,其中五个点位用六级串级式采样器采集飘尘样。样品分析了40多种元素、非金属和有机物,并分析了不同粒径中苯并(a)芘含量。应用富集因子计算并提出富集值大干5(EF>5)为污染富集的论点;摸清了济南大气颗粒物的理化特征及粒径分布规律;用化学质量平衡(CMB_7)法探寻了颗粒物来源。
Eleven collecting sites were estabished in Jinancity proper to collect atmospheric particles in different seasons. Of the eleven sites, five to collect samples of aerosols by sixstage sierro cascade impactors high volume with. In the samples collected more than 40 elements, nonmetals and organic materials. The amount of benze (a) pyrene was also analyzed in partcles of different sizes. Enrichment factor was employed in calculation, will be pollution eurichment enrichment value is higher than five (EF>5). Thus, the physical —chemical characteristics amd laws of the size distribrtion of the atmospheric particles in Jinan distribution were found. By rsing the chemical—mass—balance method (CMB7), the sources of the atmospheric particles were ascertained.
出处
《中国人口·资源与环境》
CSSCI
1992年第4期31-38,共8页
China Population,Resources and Environment
关键词
大气颗粒物
飘尘
苯并a芘
化学质量平衡
富集因子
atmospheric particles
aerosol
benze (a)- pyrene
chemical— mass—balance
enrichment factor.
