Characterizing air particulate matter composition and sources in Lisbon, Portugal

被引：0
|
作者：
S. M. Almeida
M. C. Freitas
C. Repolho
I. Dionísio
H. M. Dung
A. Caseiro
C. Alves
C. A. Pio
A. M. G. Pacheco
机构：
[1] Technological and Nuclear Institute,Reactor
[2] University of Aveiro,ITN
[3] Technical University of Lisbon,CESAM
来源：
Journal of Radioanalytical and Nuclear Chemistry | 2009年 / 281卷
关键词：
Urban aerosols; PM2.5; Traffic; Air mass back trajectories;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The goal of this research is to determine trends and sources of airborne particulates in the centre of Lisbon, by using speciated particulate-matter data and back-trajectory analyses. Results showed that, in 2007, the annual PM2.5 concentration exceeded the World Health Organization recommended levels. PM2.5 diurnal variability and the ratio between weekdays’ and weekends’ concentrations indicated that traffic contributed highly to decreasing air quality. Air back-trajectory analysis showed that maritime air mass transport had a significant role on air quality in Lisbon, promoting the decrease of anthropogenic aerosol concentrations.
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页码：215 / 218
页数：3
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