Arid
DOI10.1016/j.scitotenv.2013.07.060
Impacts on particles and ozone by transport processes recorded at urban and high-altitude monitoring stations
Nicolas, J. F.1; Crespo, J.1; Yubero, E.1; Soler, R.1; Carratala, A.2; Mantilla, E.3
通讯作者Nicolas, J. F.
来源期刊SCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
EISSN1879-1026
出版年2014
卷号466页码:439-446
英文摘要

In order to evaluate the influence of particle transport episodes on particle number concentration temporal trends at both urban and high-altitude (Aitana peak-1558 m a.s.l.) stations, a simultaneous sampling campaign from October 2011 to September 2012 was performed. The monitoring stations are located in southeastern Spain: close to the Mediterranean coast.


The annual average value of particle concentration obtained in the larger accumulation mode (size range 0.25-1 mu m) at the mountain site, 55.0 +/- 3.0 cm(-3), was practically half that of the value obtained at the urban station (112.0 +/- 4.0 cm(-3)). The largest difference between both stations was recorded during December 2011 and January 2012, when particles at the mountain station registered the lowest values. It was observed that during urban stagnant episodes, particle transport from urban sites to the mountain station could take place under specific atmospheric conditions. During these transports, the major particle transfer is produced in the 0.5-2 mu m size range. The minimum difference between stations was recorded in summer, particularly in July 2012, which is most likely due to several particle transport events that affected only the mountain station. The particle concentration in the coarse mode was very similar at both monitoring sites, with the biggest difference being recorded during the summer months, 0.4 +/- 0.1 cm(-3) at the urban site and 0.9 +/- 0.1 cm(-3) at the Aitana peak in August 2012. Saharan dust outbreaks were the main factor responsible for these values during summertime. The regional station was affected more by these outbreaks, recording values of >4.0 cm(-3), than the urban site. This long-range particle transport from the Sahara desert also had an effect upon O-3 levels measured at the mountain station. During periods affected by Saharan dust outbreaks, ozone levels underwent a significant decrease (3-17%) with respect to its mean value. (C) 2013 Elsevier B.V. All rights reserved.


英文关键词High-altitude station Transport aerosol Particle number concentration Size distribution Ozone
类型Article
语种英语
国家Spain
收录类别SCI-E
WOS记录号WOS:000330491600047
WOS关键词CHEMICAL-COMPOSITION ; MEDITERRANEAN COAST ; AEROSOLS ; DUST ; JUNGFRAUJOCH ; SWITZERLAND ; EPISODES ; BIOMASS ; EVENTS ; EUROPE
WOS类目Environmental Sciences
WOS研究方向Environmental Sciences & Ecology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/184857
作者单位1.Miguel Hernandez Univ, Lab Atmospher Pollut LCA, Elche 03202, Spain;
2.Univ Alicante, Dept Chem Engn, E-03080 Alicante, Spain;
3.Inst Univ CEAM UMH, E-46980 Paterna, Spain
推荐引用方式
GB/T 7714
Nicolas, J. F.,Crespo, J.,Yubero, E.,et al. Impacts on particles and ozone by transport processes recorded at urban and high-altitude monitoring stations[J],2014,466:439-446.
APA Nicolas, J. F.,Crespo, J.,Yubero, E.,Soler, R.,Carratala, A.,&Mantilla, E..(2014).Impacts on particles and ozone by transport processes recorded at urban and high-altitude monitoring stations.SCIENCE OF THE TOTAL ENVIRONMENT,466,439-446.
MLA Nicolas, J. F.,et al."Impacts on particles and ozone by transport processes recorded at urban and high-altitude monitoring stations".SCIENCE OF THE TOTAL ENVIRONMENT 466(2014):439-446.
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