DOI: 10.1016/j.atmosenv.2017.11.047
Scopus记录号: 2-s2.0-85035804219
论文题名: Aerosols in Northern Morocco: Input pathways and their chemical fingerprint
作者: Benchrif A ; , Guinot B ; , Bounakhla M ; , Cachier H ; , Damnati B ; , Baghdad B
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2018
卷: 174 起始页码: 140
结束页码: 147
语种: 英语
英文关键词: Aerosols
; Back trajectory clustering
; Chemical composition
; Maritime traffic
; PM2.5
; Western Mediterranean Basin
Scopus关键词: Aerosols
; Air quality
; Arid regions
; Chemical analysis
; Climate change
; Meteorology
; Trajectories
; Back trajectories
; Chemical compositions
; Maritime traffic
; PM2.5
; Western Mediterranean basin
; Atmospheric movements
; aerosol
; aerosol composition
; air mass
; air quality
; anthropogenic source
; back propagation
; biomass burning
; chemical composition
; climate change
; cluster analysis
; desert
; industrialization
; long range transport
; marine atmosphere
; particulate matter
; traffic emission
; urban pollution
; aerosol
; air
; air quality
; altitude
; Article
; Atlantic Ocean
; biomass
; chemical composition
; combustion
; meteorology
; Morocco
; North Africa
; pollutant
; priority journal
; ship
; Spain
; temperature
; Atlantic Ocean
; Casablanca [Morocco]
; Europe
; Iberian Peninsula
; Mediterranean Coast [Morocco]
; Morocco
; North Africa
; Rabat
; Rabat-Sale-Kenitra
; Spain
; Tanger-Tetouan-Al Hoceima
; Tetouan
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: The Mediterranean basin is one of the most sensitive regions in the world regarding climate change and air quality. Deserts and marine aerosols combine with combustion aerosols from maritime traffic, large urban centers, and at a larger scale from populated industrialized regions in Europe. From Tetouan city located in the North of Morocco, we attempted to better figure out the main aerosol transport pathways and their respective aerosol load and chemical profile by examining air mass back trajectory patterns and aerosol chemical compositions from May 2011 to April 2012. The back trajectory analysis throughout the sampling period led to four clusters, for which meteorological conditions and aerosol chemical characteristics have been investigated. The most frequent cluster (CL3: 39%) corresponds to polluted air masses coming from the Mediterranean Basin, characterized by urban and marine vessels emissions out of Spain and of Northern Africa. Two other polluted clusters were characterized. One is of local origin (CL1: 22%), with a marked contribution from urban aerosols (Rabat, Casablanca) and from biomass burning aerosols. The second (CL2: 32%) defines air masses from the near Atlantic Ocean, affected by pollutants emitted from the Iberian coast. A fourth cluster (CL4: 7%) is characterized by rather clean, fast and rainy oceanic air masses, influenced during their last 24 h before reaching Tetouan by similar sources with those affecting CL2, but to a lesser extent. The chemical data show that carbonaceous species are found in the fine aerosols fraction and are generally from local primary sources (low OC/EC) rather than long-range transported. In addition to fresh traffic and maritime vessel aerosols, our results suggest the contribution of local biomass burning. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/83103
Appears in Collections: 气候变化事实与影响
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作者单位: Centre National de l'Energie, des Sciences et des Techniques Nucléaires, Rabat, Morocco; Laboratoire d'Aérologie, Université de Toulouse, CNRS, UPS, Toulouse, France; Laboratoire des Sciences du Climat et de l'Environnement, Gif sur Yvette, France; Faculté des Sciences et des Technologies, Tanger, Morocco; Institut d'Agronomie et Vétérinaire, Rabat, Morocco
Recommended Citation:
Benchrif A,, Guinot B,, Bounakhla M,et al. Aerosols in Northern Morocco: Input pathways and their chemical fingerprint[J]. Atmospheric Environment,2018-01-01,174